Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807043061/bt2490sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807043061/bt2490Isup2.hkl |
CCDC reference: 663572
Ammonia solution (30 ml) was added to a solution of bis(N,N'-salicylidene)-1,3-propanediamine (0.565 g, 2 mmol) in hot ethanol (75 ml) and mixture heated to boiling. A solution of NiCl2.2H2O (0.475 g, 2 mmol) in hot water (30 ml) was then added and the resulting mixture set aside. After 2 h, the light-green nickel complex was filtered off and dried at 413 K for 4 h. This complex (0.338 g, 1 mmol) was dissolved in hot dioxane (80 ml). 4-methylpyridine (0.7 ml) was added to this solution followed by ZnI2 (0.320 g, 1 mmol) in hot methanol (10 ml). This resulting mixture was set aside for 4 d and the light-pink crystals which formed were filtered off and dried in air.
H atoms were positioned geometrically, with C—H = 0.93, 0.97 and 0.96 Å for aromatic, methylene and methyl H, and constrained to ride on their parent atoms, with Uiso(H) = xUeq(C), where x = 1.5 for methyl H, and x = 1.2 for all other H atoms.
ZincII ion is the first in a row of essential rare elements for living beings. It has been recognized to be an activator for more than 120 hydrolytic enzymes. Nickel, which exists extremely in living organism, has allergic and cancerogen effects on skin and organism (Bertini et al., 1994). Oxygen-bridged polynuclear complexes of transition series are of interest because of their magnetic properties (Barandika et al., 1999; Atakol et al., 2006) and their structures (Colon et al., 2004; Metalobos et al., 2004; Yu et al., 2007). Dinuclear metal complexes on Schiff-base ligands have been the subject on considerable interest in our laboratory, e.g. [ZnCl2Cu(salpd2-)] (Tatar et al., 1999); [ZnCl2Zn(salpd2-)(MeOH)] (Atakol, Tatar et al., 1999); [HgCl2Cu(salpd2-)] (Atakol, Arıcı et al., 1999); [ZnBr2Cu(LDMH2)(piperidine)] (Svoboda et al., 2001); [ZnBr2Ni(salpd2-)(dmf)2] (Arıcı et al., 2001); [ZnI2Ni(salpd2-)(dmf)] (Tatar, 2002); [ZnBr2Ni(salpd2-)(dmf)] (Tatar, Atakol & Arıcı, 2002); [ZnCl2Zn(salpd2-)(dmf)] (Tatar, Atakol & Ülkü, 2002); [ZnI2Zn(salpd2-)(dmf)] (Arıcı & Aksu, 2002); [HgCl2Ni(salpd2-)] (Arıcı et al., 2006). We describe here the structure of a new heteronuclear dimeric complex, [ZnI2Ni(salpd2-)(methyl pyridine)2]. Where salpd2-= N,N'-bis(salicylidene)-1,3-propanediamine (C17H16N2O2), LDMH2 = N,N'-bis(salicylidene)-2,2'-dimethyl-1, 3-propanediamine (C19H22N2O2), dmf = dimethylformamide (C3H7NO), piperidine (C5H11N), methyl pyridine (C6H7N).
In the title complex (Fig. 1), the NiII ion is in a distorted octahedral coordination environment, formed by two O and N atoms from chelating salpd2- ligand in the equatorial plane [Ni—O1= 2.038 (5), Ni—O2= 2.029 (5), Ni—N1= 2.016 (7) and 2.021 (6) Å] and two N atoms of two symmetry-related methyl pyridine ligands in the axial positions [Ni—N3=2.177 (6) and Ni—N4= 2.214 (7) Å]. The bond angles around the Ni atom range between 79.52 (19) and 100.1 (3)°. The distance of atom Ni from the O1/O2/N1/N2 mean plane is 0.0050 (10) Å. The equatorial plane (O1/O2/N1/N2) is almost perpendicular of the (N3/Ni/N4) plane, dihedral angle between them is 89 (2)°.
The coordination around the ZnII ion is distorted tetrahedral, with two bridging O atoms of the chelating salpd2- ligand [Zn—O1=1.985 (5) and Zn—O2=1.987 (5) Å] and two iodine atoms. The bond angles around the Zn atom range between 81.9 (2) and 116.49 (16)°. The planes Zn/O1/Ni/O2 and I1/Zn/I2 are almast perpendicular each other, dihedral angle between these two plane is 88.06 (13)°.
The six-membered chelate ring (Ni, N1, C8, C9, C10, N2) adopts a boat conformation, indicated by the endocyclic torsion angles and by the deviations of para-positioned boat atoms Ni 0.0552 (10)Å and C9 0.713 (11)Å from the mean plane through N1, N2, C8 and C10. The crystal structure is stabilized by weak hydrogen bonds (Table 1). The moecule has an intermolecular hydrogen bonding set involving the two molecules: [C10—H10B···I1i] (symmetry code: (i) x + 1/2, y - 1/2, z). The molecule also has two intramolecular hydrogen bonds between the N atoms and the phenyl hydrogen atoms: [C22—H22···N2] and [C28—H28···N2].
A comparison of the space group, Mc···Mt and Mt—R distances are given in Table 2 for the similar oxygen-bridged dinuclear complexes reported previously. Where Mc (Cu, Zn, Ni) central metal ion, Mt (Zn, Hg) terminal metal ion and R (Cl, Br, I) is the ion which bonded to terminal metal ion. The distances from the Zn ion to I ions are longer than the distances from Zn and Hg ions to Cl and Br ions as given in the table 2.
For general background, see: Bertini et al. (1994); Barandika et al. (1999). For related literature, see: Tatar et al. (1999); Atakol, Tatar et al. (1999); Atakol, Arıcı et al. (1999); Svoboda et al. (2001); Arıcı et al. (2001, 2006); Arıcı & Aksu, 2002; Tatar (2002); Tatar, Atakol & Arıcı (2002); Tatar, Atakol & Ülkü (2002); Colon et al. (2004); Metalobos et al. (2004); Atakol et al. (2006); Yu et al. (2007).
Data collection: CAD-4 EXPRESS (Enraf–Nonius, 1994); cell refinement: CAD-4 EXPRESS (Enraf–Nonius, 1994); data reduction: XCAD4 (Harms & Wocadlo, 1995); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
Fig. 1. The molecular structure of the title molecule with the atom-numbering scheme. Displacement ellipsoids are drawn at the 50% probability level. |
[ZnI2Ni(C17H16N2O2)(C6H7N)2] | F(000) = 1648 |
Mr = 844.45 | Dx = 1.813 Mg m−3 |
Monoclinic, Cc | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: C -2yc | Cell parameters from 25 reflections |
a = 9.3523 (11) Å | θ = 10.8–18.2° |
b = 19.615 (3) Å | µ = 3.41 mm−1 |
c = 17.4933 (10) Å | T = 293 K |
β = 105.390 (12)° | Prism, light pink |
V = 3094.0 (6) Å3 | 0.2 × 0.2 × 0.2 mm |
Z = 4 |
Enraf–Nonius TurboCAD-4 diffractometer | Rint = 0.052 |
non–profiled ω scans | θmax = 28.0°, θmin = 3.0° |
Absorption correction: ψ scan North et al. (1968) | h = −12→11 |
Tmin = 0.506, Tmax = 0.511 | k = −25→25 |
7375 measured reflections | l = 0→23 |
3745 independent reflections | 3 standard reflections every 120 min |
2491 reflections with I > 2σ(I) | intensity decay: 2% |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: geomt |
R[F2 > 2σ(F2)] = 0.033 | H-atom parameters constrained |
wR(F2) = 0.075 | w = 1/[σ2(Fo2) + (0.0323P)2] where P = (Fo2 + 2Fc2)/3 |
S = 1.01 | (Δ/σ)max < 0.001 |
3745 reflections | Δρmax = 0.48 e Å−3 |
352 parameters | Δρmin = −0.49 e Å−3 |
2 restraints | Absolute structure: Flack (1983), no Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.00 (2) |
[ZnI2Ni(C17H16N2O2)(C6H7N)2] | V = 3094.0 (6) Å3 |
Mr = 844.45 | Z = 4 |
Monoclinic, Cc | Mo Kα radiation |
a = 9.3523 (11) Å | µ = 3.41 mm−1 |
b = 19.615 (3) Å | T = 293 K |
c = 17.4933 (10) Å | 0.2 × 0.2 × 0.2 mm |
β = 105.390 (12)° |
Enraf–Nonius TurboCAD-4 diffractometer | 2491 reflections with I > 2σ(I) |
Absorption correction: ψ scan North et al. (1968) | Rint = 0.052 |
Tmin = 0.506, Tmax = 0.511 | 3 standard reflections every 120 min |
7375 measured reflections | intensity decay: 2% |
3745 independent reflections |
R[F2 > 2σ(F2)] = 0.033 | H-atom parameters constrained |
wR(F2) = 0.075 | Δρmax = 0.48 e Å−3 |
S = 1.01 | Δρmin = −0.49 e Å−3 |
3745 reflections | Absolute structure: Flack (1983), no Friedel pairs |
352 parameters | Absolute structure parameter: 0.00 (2) |
2 restraints |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
I1 | 0.73246 (8) | 0.54913 (3) | 0.50165 (4) | 0.0737 (2) | |
I2 | 0.45922 (6) | 0.38306 (5) | 0.39646 (4) | 0.0825 (3) | |
N3 | 1.1124 (6) | 0.4104 (3) | 0.5796 (4) | 0.0402 (15) | |
N4 | 0.8329 (7) | 0.2347 (4) | 0.4816 (5) | 0.0523 (17) | |
C17 | 0.9014 (7) | 0.3837 (4) | 0.3684 (4) | 0.0339 (15) | |
C6 | 0.8512 (8) | 0.3134 (4) | 0.6975 (5) | 0.0448 (19) | |
C1 | 0.7703 (8) | 0.3564 (4) | 0.6384 (5) | 0.0418 (18) | |
N1 | 1.0419 (7) | 0.2727 (4) | 0.6372 (4) | 0.0497 (17) | |
C16 | 0.8181 (8) | 0.4269 (5) | 0.3089 (5) | 0.046 (2) | |
H16 | 0.7415 | 0.4525 | 0.3191 | 0.055* | |
N2 | 1.1280 (7) | 0.2918 (3) | 0.4796 (5) | 0.0469 (16) | |
C10 | 1.2571 (10) | 0.2511 (5) | 0.5233 (6) | 0.066 (3) | |
H10A | 1.3434 | 0.2653 | 0.5064 | 0.079* | |
H10B | 1.2385 | 0.2036 | 0.5089 | 0.079* | |
C15 | 0.8466 (10) | 0.4322 (5) | 0.2361 (5) | 0.054 (2) | |
H15 | 0.7889 | 0.4612 | 0.1981 | 0.065* | |
C12 | 1.0187 (8) | 0.3464 (4) | 0.3498 (5) | 0.0416 (18) | |
C2 | 0.6478 (9) | 0.3922 (5) | 0.6507 (5) | 0.050 (2) | |
H2 | 0.5916 | 0.4202 | 0.6112 | 0.06* | |
C7 | 0.9816 (8) | 0.2741 (4) | 0.6944 (5) | 0.047 (2) | |
H7 | 1.0249 | 0.2474 | 0.7384 | 0.057* | |
C8 | 1.1750 (9) | 0.2272 (5) | 0.6478 (7) | 0.072 (3) | |
H8A | 1.1435 | 0.1833 | 0.6238 | 0.087* | |
H8B | 1.2192 | 0.22 | 0.704 | 0.087* | |
C14 | 0.9603 (10) | 0.3952 (5) | 0.2184 (5) | 0.059 (2) | |
H14 | 0.9782 | 0.3984 | 0.1687 | 0.071* | |
C13 | 1.0462 (9) | 0.3532 (5) | 0.2763 (5) | 0.050 (2) | |
H13 | 1.1242 | 0.329 | 0.2656 | 0.061* | |
C11 | 1.1229 (8) | 0.3050 (4) | 0.4076 (6) | 0.050 (2) | |
H11 | 1.1977 | 0.2851 | 0.3892 | 0.059* | |
C5 | 0.8103 (11) | 0.3083 (5) | 0.7696 (5) | 0.060 (2) | |
H5 | 0.8647 | 0.2802 | 0.8097 | 0.072* | |
C21 | 1.2878 (9) | 0.4929 (5) | 0.5621 (5) | 0.055 (2) | |
H21 | 1.3415 | 0.5107 | 0.5289 | 0.066* | |
C24 | 0.7084 (11) | 0.2176 (5) | 0.4993 (8) | 0.075 (3) | |
H24 | 0.6758 | 0.2456 | 0.5342 | 0.09* | |
C20 | 1.3033 (9) | 0.5210 (5) | 0.6369 (5) | 0.050 (2) | |
C9 | 1.2916 (9) | 0.2572 (6) | 0.6106 (7) | 0.074 (3) | |
H9A | 1.3042 | 0.3051 | 0.6246 | 0.089* | |
H9B | 1.3855 | 0.2347 | 0.6336 | 0.089* | |
C22 | 1.1943 (8) | 0.4396 (4) | 0.5373 (5) | 0.0465 (19) | |
H22 | 1.1871 | 0.4223 | 0.487 | 0.056* | |
C19 | 1.2176 (9) | 0.4922 (5) | 0.6806 (5) | 0.054 (2) | |
H19 | 1.2203 | 0.51 | 0.7302 | 0.065* | |
C3 | 0.6112 (11) | 0.3852 (5) | 0.7228 (6) | 0.065 (3) | |
H3 | 0.5304 | 0.409 | 0.7308 | 0.079* | |
C18 | 1.1265 (9) | 0.4369 (5) | 0.6519 (5) | 0.054 (2) | |
H18 | 1.0731 | 0.4174 | 0.6842 | 0.065* | |
C26 | 0.6544 (10) | 0.1222 (5) | 0.4138 (5) | 0.054 (2) | |
C23 | 1.4028 (13) | 0.5818 (7) | 0.6642 (7) | 0.088 (4) | |
H23A | 1.3432 | 0.6214 | 0.6655 | 0.132* | |
H23B | 1.4627 | 0.5894 | 0.6282 | 0.132* | |
H23C | 1.4657 | 0.5732 | 0.7163 | 0.132* | |
C4 | 0.6915 (13) | 0.3442 (6) | 0.7816 (6) | 0.073 (3) | |
H4 | 0.6663 | 0.3405 | 0.8294 | 0.088* | |
C27 | 0.7775 (14) | 0.1392 (7) | 0.3926 (8) | 0.102 (3) | |
H27 | 0.8074 | 0.1129 | 0.3554 | 0.123* | |
C25 | 0.6249 (11) | 0.1618 (6) | 0.4700 (7) | 0.075 (3) | |
H25 | 0.5447 | 0.1509 | 0.4897 | 0.091* | |
C28 | 0.8598 (14) | 0.1951 (7) | 0.4255 (8) | 0.109 (5) | |
H28 | 0.9412 | 0.2061 | 0.4069 | 0.131* | |
C29 | 0.5603 (11) | 0.0619 (5) | 0.3769 (7) | 0.075 (3) | |
H29A | 0.4888 | 0.0524 | 0.406 | 0.112* | |
H29B | 0.6226 | 0.0228 | 0.3784 | 0.112* | |
H29C | 0.5097 | 0.0723 | 0.3228 | 0.112* | |
Zn | 0.71340 (8) | 0.42196 (4) | 0.47615 (5) | 0.0380 (2) | |
Ni | 0.97304 (9) | 0.32289 (5) | 0.53338 (6) | 0.0385 (2) | |
O2 | 0.8738 (5) | 0.3799 (3) | 0.4371 (3) | 0.0403 (12) | |
O1 | 0.8033 (5) | 0.3648 (3) | 0.5702 (3) | 0.0394 (12) |
U11 | U22 | U33 | U12 | U13 | U23 | |
I1 | 0.1176 (5) | 0.0392 (3) | 0.0708 (4) | 0.0039 (4) | 0.0364 (4) | −0.0027 (3) |
I2 | 0.0421 (3) | 0.1351 (7) | 0.0646 (4) | −0.0282 (4) | 0.0040 (3) | −0.0020 (4) |
N3 | 0.034 (3) | 0.036 (4) | 0.050 (4) | 0.003 (3) | 0.011 (3) | 0.000 (3) |
N4 | 0.046 (4) | 0.043 (4) | 0.069 (5) | −0.007 (3) | 0.015 (3) | −0.002 (4) |
C17 | 0.033 (3) | 0.034 (4) | 0.039 (4) | −0.007 (3) | 0.015 (3) | −0.006 (3) |
C6 | 0.048 (4) | 0.041 (5) | 0.044 (5) | −0.006 (4) | 0.010 (4) | 0.003 (4) |
C1 | 0.036 (4) | 0.039 (4) | 0.053 (5) | −0.012 (3) | 0.016 (4) | −0.013 (4) |
N1 | 0.045 (3) | 0.043 (4) | 0.058 (4) | 0.000 (3) | 0.008 (3) | 0.013 (3) |
C16 | 0.038 (4) | 0.057 (5) | 0.041 (5) | −0.008 (4) | 0.007 (3) | −0.009 (4) |
N2 | 0.034 (3) | 0.037 (4) | 0.074 (5) | 0.005 (3) | 0.021 (3) | 0.003 (3) |
C10 | 0.057 (5) | 0.052 (6) | 0.094 (8) | 0.016 (5) | 0.029 (5) | 0.010 (5) |
C15 | 0.051 (5) | 0.062 (6) | 0.045 (5) | −0.015 (4) | 0.006 (4) | 0.004 (4) |
C12 | 0.040 (4) | 0.043 (5) | 0.042 (4) | −0.013 (4) | 0.010 (3) | −0.016 (4) |
C2 | 0.047 (4) | 0.051 (6) | 0.053 (5) | 0.001 (4) | 0.016 (4) | 0.008 (4) |
C7 | 0.044 (4) | 0.041 (5) | 0.055 (5) | −0.004 (4) | 0.010 (4) | 0.016 (4) |
C8 | 0.056 (6) | 0.061 (6) | 0.102 (8) | 0.017 (5) | 0.025 (5) | 0.049 (6) |
C14 | 0.058 (5) | 0.079 (7) | 0.045 (5) | −0.018 (5) | 0.023 (4) | −0.011 (5) |
C13 | 0.043 (4) | 0.061 (6) | 0.051 (5) | −0.011 (4) | 0.019 (4) | −0.023 (4) |
C11 | 0.033 (4) | 0.046 (5) | 0.074 (6) | −0.011 (3) | 0.022 (4) | −0.020 (5) |
C5 | 0.073 (6) | 0.061 (6) | 0.048 (5) | −0.005 (5) | 0.017 (4) | 0.010 (4) |
C21 | 0.049 (5) | 0.060 (6) | 0.058 (6) | −0.014 (4) | 0.020 (4) | 0.002 (5) |
C24 | 0.064 (6) | 0.056 (6) | 0.120 (9) | −0.015 (5) | 0.049 (6) | −0.020 (7) |
C20 | 0.045 (4) | 0.051 (5) | 0.049 (5) | −0.009 (4) | 0.002 (4) | −0.006 (4) |
C9 | 0.038 (4) | 0.066 (7) | 0.116 (9) | 0.020 (4) | 0.015 (5) | 0.033 (6) |
C22 | 0.053 (5) | 0.040 (5) | 0.045 (4) | −0.006 (4) | 0.011 (4) | 0.002 (4) |
C19 | 0.055 (5) | 0.063 (6) | 0.043 (5) | −0.007 (4) | 0.009 (4) | −0.014 (4) |
C3 | 0.080 (6) | 0.062 (7) | 0.068 (6) | 0.008 (5) | 0.042 (5) | 0.003 (5) |
C18 | 0.048 (4) | 0.062 (6) | 0.053 (5) | −0.009 (4) | 0.017 (4) | 0.001 (4) |
C26 | 0.060 (5) | 0.040 (5) | 0.061 (5) | −0.021 (4) | 0.016 (4) | −0.004 (4) |
C23 | 0.088 (7) | 0.089 (9) | 0.079 (8) | −0.046 (7) | 0.010 (6) | −0.027 (7) |
C4 | 0.099 (8) | 0.077 (8) | 0.055 (6) | −0.010 (6) | 0.039 (6) | 0.008 (5) |
C27 | 0.104 | 0.113 (11) | 0.111 | −0.057 (7) | 0.065 (5) | −0.058 (8) |
C25 | 0.059 (5) | 0.068 (7) | 0.111 (9) | −0.024 (5) | 0.041 (6) | −0.027 (6) |
C28 | 0.117 (9) | 0.108 (10) | 0.134 (11) | −0.074 (8) | 0.089 (9) | −0.071 (9) |
C29 | 0.072 (6) | 0.061 (7) | 0.083 (7) | −0.021 (5) | 0.005 (5) | 0.005 (5) |
Zn | 0.0342 (4) | 0.0389 (5) | 0.0400 (5) | 0.0034 (4) | 0.0084 (4) | 0.0014 (4) |
Ni | 0.0336 (4) | 0.0344 (5) | 0.0477 (6) | 0.0013 (4) | 0.0108 (4) | 0.0022 (4) |
O2 | 0.037 (2) | 0.047 (3) | 0.039 (3) | 0.007 (2) | 0.011 (2) | 0.001 (2) |
O1 | 0.040 (3) | 0.046 (3) | 0.034 (3) | 0.001 (2) | 0.013 (2) | 0.008 (2) |
I1—Zn | 2.5320 (11) | C13—H13 | 0.93 |
I2—Zn | 2.5333 (10) | C11—H11 | 0.93 |
N3—C22 | 1.328 (10) | C5—C4 | 1.377 (15) |
N3—C18 | 1.341 (11) | C5—H5 | 0.93 |
N3—Ni | 2.177 (6) | C21—C22 | 1.358 (11) |
N4—C24 | 1.325 (11) | C21—C20 | 1.392 (12) |
N4—C28 | 1.326 (12) | C21—H21 | 0.93 |
N4—Ni | 2.214 (7) | C24—C25 | 1.363 (13) |
C17—O2 | 1.296 (9) | C24—H24 | 0.93 |
C17—C16 | 1.406 (11) | C20—C19 | 1.368 (13) |
C17—C12 | 1.426 (10) | C20—C23 | 1.509 (13) |
C6—C1 | 1.392 (11) | C9—H9A | 0.97 |
C6—C5 | 1.416 (12) | C9—H9B | 0.97 |
C6—C7 | 1.456 (11) | C22—H22 | 0.93 |
C1—O1 | 1.319 (9) | C19—C18 | 1.389 (12) |
C1—C2 | 1.408 (11) | C19—H19 | 0.93 |
N1—C7 | 1.272 (10) | C3—C4 | 1.363 (15) |
N1—C8 | 1.503 (11) | C3—H3 | 0.93 |
N1—Ni | 2.016 (7) | C18—H18 | 0.93 |
C16—C15 | 1.372 (12) | C26—C25 | 1.339 (14) |
C16—H16 | 0.93 | C26—C27 | 1.341 (13) |
N2—C11 | 1.274 (11) | C26—C29 | 1.513 (12) |
N2—C10 | 1.479 (11) | C23—H23A | 0.96 |
N2—Ni | 2.021 (6) | C23—H23B | 0.96 |
C10—C9 | 1.480 (16) | C23—H23C | 0.96 |
C10—H10A | 0.97 | C4—H4 | 0.93 |
C10—H10B | 0.97 | C27—C28 | 1.376 (15) |
C15—C14 | 1.390 (13) | C27—H27 | 0.93 |
C15—H15 | 0.93 | C25—H25 | 0.93 |
C12—C13 | 1.383 (11) | C28—H28 | 0.93 |
C12—C11 | 1.452 (13) | C29—H29A | 0.96 |
C2—C3 | 1.398 (12) | C29—H29B | 0.96 |
C2—H2 | 0.93 | C29—H29C | 0.96 |
C7—H7 | 0.93 | Zn—O1 | 1.985 (5) |
C8—C9 | 1.528 (13) | Zn—O2 | 1.987 (5) |
C8—H8A | 0.97 | Zn—Ni | 3.0634 (12) |
C8—H8B | 0.97 | Ni—O2 | 2.029 (5) |
C14—C13 | 1.385 (14) | Ni—O1 | 2.038 (5) |
C14—H14 | 0.93 | ||
C22—N3—C18 | 115.6 (7) | N3—C22—H22 | 117.5 |
C22—N3—Ni | 120.7 (5) | C21—C22—H22 | 117.5 |
C18—N3—Ni | 123.7 (5) | C20—C19—C18 | 121.1 (8) |
C24—N4—C28 | 112.1 (8) | C20—C19—H19 | 119.5 |
C24—N4—Ni | 124.3 (7) | C18—C19—H19 | 119.5 |
C28—N4—Ni | 123.5 (6) | C4—C3—C2 | 121.4 (9) |
O2—C17—C16 | 120.9 (7) | C4—C3—H3 | 119.3 |
O2—C17—C12 | 122.4 (7) | C2—C3—H3 | 119.3 |
C16—C17—C12 | 116.7 (7) | N3—C18—C19 | 122.7 (8) |
C1—C6—C5 | 118.8 (8) | N3—C18—H18 | 118.6 |
C1—C6—C7 | 126.1 (7) | C19—C18—H18 | 118.6 |
C5—C6—C7 | 115.0 (8) | C25—C26—C27 | 114.7 (9) |
O1—C1—C6 | 122.4 (7) | C25—C26—C29 | 123.9 (8) |
O1—C1—C2 | 118.1 (7) | C27—C26—C29 | 121.4 (9) |
C6—C1—C2 | 119.5 (7) | C20—C23—H23A | 109.5 |
C7—N1—C8 | 116.2 (7) | C20—C23—H23B | 109.5 |
C7—N1—Ni | 126.6 (6) | H23A—C23—H23B | 109.5 |
C8—N1—Ni | 117.2 (6) | C20—C23—H23C | 109.5 |
C15—C16—C17 | 121.8 (8) | H23A—C23—H23C | 109.5 |
C15—C16—H16 | 119.1 | H23B—C23—H23C | 109.5 |
C17—C16—H16 | 119.1 | C3—C4—C5 | 119.4 (9) |
C11—N2—C10 | 115.6 (7) | C3—C4—H4 | 120.3 |
C11—N2—Ni | 123.7 (6) | C5—C4—H4 | 120.3 |
C10—N2—Ni | 120.7 (6) | C26—C27—C28 | 120.5 (10) |
N2—C10—C9 | 114.5 (8) | C26—C27—H27 | 119.7 |
N2—C10—H10A | 108.6 | C28—C27—H27 | 119.7 |
C9—C10—H10A | 108.6 | C26—C25—C24 | 122.2 (9) |
N2—C10—H10B | 108.6 | C26—C25—H25 | 118.9 |
C9—C10—H10B | 108.6 | C24—C25—H25 | 118.9 |
H10A—C10—H10B | 107.6 | N4—C28—C27 | 125.5 (9) |
C16—C15—C14 | 121.0 (9) | N4—C28—H28 | 117.2 |
C16—C15—H15 | 119.5 | C27—C28—H28 | 117.2 |
C14—C15—H15 | 119.5 | C26—C29—H29A | 109.5 |
C13—C12—C17 | 120.5 (8) | C26—C29—H29B | 109.5 |
C13—C12—C11 | 116.4 (7) | H29A—C29—H29B | 109.5 |
C17—C12—C11 | 122.9 (7) | C26—C29—H29C | 109.5 |
C3—C2—C1 | 119.5 (8) | H29A—C29—H29C | 109.5 |
C3—C2—H2 | 120.2 | H29B—C29—H29C | 109.5 |
C1—C2—H2 | 120.2 | O1—Zn—O2 | 81.9 (2) |
N1—C7—C6 | 126.2 (8) | O1—Zn—I1 | 114.59 (15) |
N1—C7—H7 | 116.9 | O2—Zn—I1 | 116.48 (16) |
C6—C7—H7 | 116.9 | O1—Zn—I2 | 114.53 (15) |
N1—C8—C9 | 112.4 (7) | O2—Zn—I2 | 111.69 (15) |
N1—C8—H8A | 109.1 | I1—Zn—I2 | 113.93 (4) |
C9—C8—H8A | 109.1 | O1—Zn—Ni | 41.06 (13) |
N1—C8—H8B | 109.1 | O2—Zn—Ni | 40.81 (15) |
C9—C8—H8B | 109.1 | I1—Zn—Ni | 123.69 (4) |
H8A—C8—H8B | 107.9 | I2—Zn—Ni | 122.37 (4) |
C13—C14—C15 | 118.5 (8) | N1—Ni—N2 | 100.1 (3) |
C13—C14—H14 | 120.7 | N1—Ni—O2 | 169.6 (2) |
C15—C14—H14 | 120.7 | N2—Ni—O2 | 90.3 (2) |
C12—C13—C14 | 121.5 (8) | N1—Ni—O1 | 90.1 (2) |
C12—C13—H13 | 119.3 | N2—Ni—O1 | 169.8 (3) |
C14—C13—H13 | 119.3 | O2—Ni—O1 | 79.52 (19) |
N2—C11—C12 | 130.1 (7) | N1—Ni—N3 | 91.9 (3) |
N2—C11—H11 | 115 | N2—Ni—N3 | 88.8 (2) |
C12—C11—H11 | 115 | O2—Ni—N3 | 88.3 (2) |
C4—C5—C6 | 121.3 (9) | O1—Ni—N3 | 90.3 (2) |
C4—C5—H5 | 119.4 | N1—Ni—N4 | 90.0 (3) |
C6—C5—H5 | 119.4 | N2—Ni—N4 | 89.6 (3) |
C22—C21—C20 | 120.2 (8) | O2—Ni—N4 | 90.0 (3) |
C22—C21—H21 | 119.9 | O1—Ni—N4 | 91.0 (2) |
C20—C21—H21 | 119.9 | N3—Ni—N4 | 177.7 (3) |
N4—C24—C25 | 124.5 (9) | N1—Ni—Zn | 129.8 (2) |
N4—C24—H24 | 117.8 | N2—Ni—Zn | 130.1 (2) |
C25—C24—H24 | 117.8 | O2—Ni—Zn | 39.77 (14) |
C19—C20—C21 | 115.5 (8) | O1—Ni—Zn | 39.77 (13) |
C19—C20—C23 | 123.6 (8) | N3—Ni—Zn | 88.04 (16) |
C21—C20—C23 | 120.8 (8) | N4—Ni—Zn | 91.72 (18) |
C10—C9—C8 | 115.1 (9) | C17—O2—Zn | 130.5 (5) |
C10—C9—H9A | 108.5 | C17—O2—Ni | 130.0 (5) |
C8—C9—H9A | 108.5 | Zn—O2—Ni | 99.4 (2) |
C10—C9—H9B | 108.5 | C1—O1—Zn | 132.2 (5) |
C8—C9—H9B | 108.5 | C1—O1—Ni | 128.6 (5) |
H9A—C9—H9B | 107.5 | Zn—O1—Ni | 99.2 (2) |
N3—C22—C21 | 124.9 (8) | ||
C5—C6—C1—O1 | 178.7 (7) | C18—N3—Ni—O2 | 126.5 (6) |
C7—C6—C1—O1 | 1.7 (13) | C22—N3—Ni—O1 | −135.4 (6) |
C5—C6—C1—C2 | −1.8 (12) | C18—N3—Ni—O1 | 47.0 (6) |
C7—C6—C1—C2 | −178.8 (7) | C22—N3—Ni—N4 | −12 (6) |
O2—C17—C16—C15 | 179.3 (7) | C18—N3—Ni—N4 | 171 (6) |
C12—C17—C16—C15 | 0.9 (11) | C22—N3—Ni—Zn | −95.7 (5) |
C11—N2—C10—C9 | 158.8 (8) | C18—N3—Ni—Zn | 86.7 (6) |
Ni—N2—C10—C9 | −21.2 (11) | C24—N4—Ni—N1 | 72.8 (9) |
C17—C16—C15—C14 | −0.3 (13) | C28—N4—Ni—N1 | −111.3 (10) |
O2—C17—C12—C13 | −178.6 (7) | C24—N4—Ni—N2 | 172.9 (9) |
C16—C17—C12—C13 | −0.2 (10) | C28—N4—Ni—N2 | −11.2 (10) |
O2—C17—C12—C11 | −4.5 (11) | C24—N4—Ni—O2 | −96.8 (9) |
C16—C17—C12—C11 | 173.9 (7) | C28—N4—Ni—O2 | 79.2 (10) |
O1—C1—C2—C3 | −179.1 (8) | C24—N4—Ni—O1 | −17.3 (9) |
C6—C1—C2—C3 | 1.5 (12) | C28—N4—Ni—O1 | 158.7 (10) |
C8—N1—C7—C6 | −179.2 (8) | C24—N4—Ni—N3 | −141 (6) |
Ni—N1—C7—C6 | −1.3 (12) | C28—N4—Ni—N3 | 35 (6) |
C1—C6—C7—N1 | −0.2 (14) | C24—N4—Ni—Zn | −57.0 (9) |
C5—C6—C7—N1 | −177.2 (9) | C28—N4—Ni—Zn | 118.9 (10) |
C7—N1—C8—C9 | −144.4 (9) | O1—Zn—Ni—N1 | −1.9 (3) |
Ni—N1—C8—C9 | 37.5 (11) | O2—Zn—Ni—N1 | −179.4 (4) |
C16—C15—C14—C13 | −0.9 (13) | I1—Zn—Ni—N1 | 87.9 (3) |
C17—C12—C13—C14 | −1.0 (12) | I2—Zn—Ni—N1 | −93.1 (3) |
C11—C12—C13—C14 | −175.5 (8) | O1—Zn—Ni—N2 | −179.5 (3) |
C15—C14—C13—C12 | 1.6 (13) | O2—Zn—Ni—N2 | 3.0 (3) |
C10—N2—C11—C12 | −175.9 (8) | I1—Zn—Ni—N2 | −89.7 (3) |
Ni—N2—C11—C12 | 4.2 (12) | I2—Zn—Ni—N2 | 89.3 (3) |
C13—C12—C11—N2 | 177.6 (8) | O1—Zn—Ni—O2 | 177.5 (3) |
C17—C12—C11—N2 | 3.3 (13) | I1—Zn—Ni—O2 | −92.8 (2) |
C1—C6—C5—C4 | 1.0 (14) | I2—Zn—Ni—O2 | 86.3 (2) |
C7—C6—C5—C4 | 178.3 (9) | O2—Zn—Ni—O1 | −177.5 (3) |
C28—N4—C24—C25 | 6.4 (18) | I1—Zn—Ni—O1 | 89.8 (2) |
Ni—N4—C24—C25 | −177.2 (10) | I2—Zn—Ni—O1 | −91.2 (2) |
C22—C21—C20—C19 | −1.2 (13) | O1—Zn—Ni—N3 | −92.8 (3) |
C22—C21—C20—C23 | −177.9 (10) | O2—Zn—Ni—N3 | 89.8 (3) |
N2—C10—C9—C8 | 66.8 (11) | I1—Zn—Ni—N3 | −2.99 (17) |
N1—C8—C9—C10 | −77.1 (12) | I2—Zn—Ni—N3 | 176.05 (17) |
C18—N3—C22—C21 | −0.2 (12) | O1—Zn—Ni—N4 | 89.6 (3) |
Ni—N3—C22—C21 | −177.9 (7) | O2—Zn—Ni—N4 | −87.9 (3) |
C20—C21—C22—N3 | 0.0 (13) | I1—Zn—Ni—N4 | 179.3 (2) |
C21—C20—C19—C18 | 2.5 (13) | I2—Zn—Ni—N4 | −1.6 (2) |
C23—C20—C19—C18 | 179.1 (10) | C16—C17—O2—Zn | 5.2 (10) |
C1—C2—C3—C4 | −0.2 (15) | C12—C17—O2—Zn | −176.5 (5) |
C22—N3—C18—C19 | 1.5 (12) | C16—C17—O2—Ni | 179.8 (5) |
Ni—N3—C18—C19 | 179.2 (7) | C12—C17—O2—Ni | −1.9 (10) |
C20—C19—C18—N3 | −2.8 (14) | O1—Zn—O2—C17 | 174.1 (6) |
C2—C3—C4—C5 | −0.7 (17) | I1—Zn—O2—C17 | −72.4 (6) |
C6—C5—C4—C3 | 0.3 (16) | I2—Zn—O2—C17 | 60.9 (6) |
C25—C26—C27—C28 | −3 (2) | Ni—Zn—O2—C17 | 175.8 (7) |
C29—C26—C27—C28 | 178.5 (14) | O1—Zn—O2—Ni | −1.7 (2) |
C27—C26—C25—C24 | 4.1 (18) | I1—Zn—O2—Ni | 111.79 (17) |
C29—C26—C25—C24 | −176.9 (11) | I2—Zn—O2—Ni | −114.90 (16) |
N4—C24—C25—C26 | −7 (2) | N1—Ni—O2—C17 | −173.1 (12) |
C24—N4—C28—C27 | −5 (2) | N2—Ni—O2—C17 | 6.5 (6) |
Ni—N4—C28—C27 | 178.8 (13) | O1—Ni—O2—C17 | −174.2 (6) |
C26—C27—C28—N4 | 3 (3) | N3—Ni—O2—C17 | 95.2 (6) |
C7—N1—Ni—N2 | −179.6 (7) | N4—Ni—O2—C17 | −83.1 (6) |
C8—N1—Ni—N2 | −1.7 (7) | Zn—Ni—O2—C17 | −175.8 (7) |
C7—N1—Ni—O2 | 0.0 (19) | N1—Ni—O2—Zn | 2.7 (15) |
C8—N1—Ni—O2 | 177.9 (12) | N2—Ni—O2—Zn | −177.7 (3) |
C7—N1—Ni—O1 | 1.0 (7) | O1—Ni—O2—Zn | 1.6 (2) |
C8—N1—Ni—O1 | 179.0 (6) | N3—Ni—O2—Zn | −88.9 (2) |
C7—N1—Ni—N3 | 91.3 (7) | N4—Ni—O2—Zn | 92.7 (3) |
C8—N1—Ni—N3 | −90.8 (6) | C6—C1—O1—Zn | −179.2 (5) |
C7—N1—Ni—N4 | −90.0 (7) | C2—C1—O1—Zn | 1.4 (10) |
C8—N1—Ni—N4 | 87.9 (6) | C6—C1—O1—Ni | −1.7 (10) |
C7—N1—Ni—Zn | 2.2 (8) | C2—C1—O1—Ni | 178.8 (5) |
C8—N1—Ni—Zn | −179.8 (5) | O2—Zn—O1—C1 | 179.7 (6) |
C11—N2—Ni—N1 | 172.7 (7) | I1—Zn—O1—C1 | 64.2 (6) |
C10—N2—Ni—N1 | −7.2 (7) | I2—Zn—O1—C1 | −70.2 (6) |
C11—N2—Ni—O2 | −7.2 (7) | Ni—Zn—O1—C1 | 178.0 (7) |
C10—N2—Ni—O2 | 172.9 (6) | O2—Zn—O1—Ni | 1.7 (2) |
C11—N2—Ni—O1 | −11.0 (19) | I1—Zn—O1—Ni | −113.79 (16) |
C10—N2—Ni—O1 | 169.1 (12) | I2—Zn—O1—Ni | 111.85 (16) |
C11—N2—Ni—N3 | −95.5 (7) | N1—Ni—O1—C1 | 0.5 (6) |
C10—N2—Ni—N3 | 84.5 (6) | N2—Ni—O1—C1 | −175.9 (13) |
C11—N2—Ni—N4 | 82.8 (7) | O2—Ni—O1—C1 | −179.7 (6) |
C10—N2—Ni—N4 | −97.2 (6) | N3—Ni—O1—C1 | −91.5 (6) |
C11—N2—Ni—Zn | −9.1 (8) | N4—Ni—O1—C1 | 90.5 (6) |
C10—N2—Ni—Zn | 170.9 (5) | Zn—Ni—O1—C1 | −178.1 (7) |
C22—N3—Ni—N1 | 134.5 (6) | N1—Ni—O1—Zn | 178.5 (3) |
C18—N3—Ni—N1 | −43.1 (7) | N2—Ni—O1—Zn | 2.2 (15) |
C22—N3—Ni—N2 | 34.4 (6) | O2—Ni—O1—Zn | −1.6 (2) |
C18—N3—Ni—N2 | −143.1 (7) | N3—Ni—O1—Zn | 86.6 (2) |
C22—N3—Ni—O2 | −55.9 (6) | N4—Ni—O1—Zn | −91.4 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
C10—H10B···I1i | 0.97 | 3.03 | 3.981 (10) | 166 |
C22—H22···N2 | 0.93 | 2.61 | 3.078 (10) | 111 |
C28—H28···N2 | 0.93 | 2.51 | 3.086 (15) | 120 |
Symmetry code: (i) x+1/2, y−1/2, z. |
Experimental details
Crystal data | |
Chemical formula | [ZnI2Ni(C17H16N2O2)(C6H7N)2] |
Mr | 844.45 |
Crystal system, space group | Monoclinic, Cc |
Temperature (K) | 293 |
a, b, c (Å) | 9.3523 (11), 19.615 (3), 17.4933 (10) |
β (°) | 105.390 (12) |
V (Å3) | 3094.0 (6) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 3.41 |
Crystal size (mm) | 0.2 × 0.2 × 0.2 |
Data collection | |
Diffractometer | Enraf–Nonius TurboCAD-4 |
Absorption correction | ψ scan North et al. (1968) |
Tmin, Tmax | 0.506, 0.511 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7375, 3745, 2491 |
Rint | 0.052 |
(sin θ/λ)max (Å−1) | 0.660 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.033, 0.075, 1.01 |
No. of reflections | 3745 |
No. of parameters | 352 |
No. of restraints | 2 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.48, −0.49 |
Absolute structure | Flack (1983), no Friedel pairs |
Absolute structure parameter | 0.00 (2) |
Computer programs: CAD-4 EXPRESS (Enraf–Nonius, 1994), XCAD4 (Harms & Wocadlo, 1995), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
C10—H10B···I1i | 0.97 | 3.03 | 3.981 (10) | 166 |
C22—H22···N2 | 0.93 | 2.61 | 3.078 (10) | 111 |
C28—H28···N2 | 0.93 | 2.51 | 3.086 (15) | 120 |
Symmetry code: (i) x+1/2, y−1/2, z. |
Compound [MtR2Mc] | Space Group | Mc···Mt (Å) | Mt-R (Å) |
(I) | Monoclinic Cc | 3.0634 (13) | 2.5320 (11)-2.5333 (10) |
(II) | Monoclinic Cc | 3.0738 (19) | 2.3412 (18)-2.3628 (16) |
(III) | Monoclinic Cc | 3.0695 (11) | 2.5303 (9)-2.5424 (9) |
(IV) | Monoclinic P21/c | 3.0757 (6) | 2.208 (1)-2.208 (1) |
(V) | Monoclinik P21/n | 3.0800 (9) | 2.3309 (9)-2.3508 (10) |
(VI) | Monoclinic P21 | not_given | 2.216 (4)-2.200 (4) |
(VII) | Orthorhombic P212121 | 3.0917 (15) | 2.3356 (16)-2.3634 (15) |
(VIII) | Orthorhombic P212121 | 3.161 (1) | 2.2163 (14)-2.2054 (14) |
(IX) | Orthorhombic P212121 | 3.1464 (16) | 2.5373 (14)-2.5527 (14) |
(X) | Triclinic P-1 | 3.5301 (8) | 2.3430 (10)-2.325 (2) |
(XI) | Triclinic P-1 | 3.4859 (7) | 2.320 (2)-2.324 (2) |
Notes: (II) [ZnBr2Ni(salpd2-)(DMF)2] (Arıcı et al., 2001); (III) [ZnI2Ni(salpd2-)(DMF)] (Tatar, 2002); (IV) [ZnCl2Cu(salpd2-)] (Tatar et al., 1999); (V) [ZnBr2Cu(LDMH2)(piperidine)] (Svoboda et al., 2001); (VI) [ZnCl2Zn(salpd2-)(MeOH)] (Atakol, Tatar et al., 1999); (VII) [ZnBr2Ni(salpd2-)(DMF)] (Tatar, Atakol, Arıcı, 2002); (VIII) [ZnCl2Zn(salpd2-)(DMF)] (Tatar, Atakol, Ülkü, 2002); (IX) [ZnI2Zn(salpd2-)(DMF)] (Arıcı & Aksu, 2002); (X) [HgCl2Cu(salpd2-)] (Atakol, Arıcı et al., 1999); (XI) [HgCl2Ni(salpd2-)] Arıcı et al., 2006). salpd2- = N,N'-bis(salicylidene)-1,3-propanediamine (C17H16N2O2), LDMH2 = N,N'-bis(salicylidene)-2,2'-dimethyl-1, 3-propanediamine (C19H22N2O2), DMF = dimethylformamide (C3H7NO), piperidine (C5H11N), methylpyridine (C6H7N). |
ZincII ion is the first in a row of essential rare elements for living beings. It has been recognized to be an activator for more than 120 hydrolytic enzymes. Nickel, which exists extremely in living organism, has allergic and cancerogen effects on skin and organism (Bertini et al., 1994). Oxygen-bridged polynuclear complexes of transition series are of interest because of their magnetic properties (Barandika et al., 1999; Atakol et al., 2006) and their structures (Colon et al., 2004; Metalobos et al., 2004; Yu et al., 2007). Dinuclear metal complexes on Schiff-base ligands have been the subject on considerable interest in our laboratory, e.g. [ZnCl2Cu(salpd2-)] (Tatar et al., 1999); [ZnCl2Zn(salpd2-)(MeOH)] (Atakol, Tatar et al., 1999); [HgCl2Cu(salpd2-)] (Atakol, Arıcı et al., 1999); [ZnBr2Cu(LDMH2)(piperidine)] (Svoboda et al., 2001); [ZnBr2Ni(salpd2-)(dmf)2] (Arıcı et al., 2001); [ZnI2Ni(salpd2-)(dmf)] (Tatar, 2002); [ZnBr2Ni(salpd2-)(dmf)] (Tatar, Atakol & Arıcı, 2002); [ZnCl2Zn(salpd2-)(dmf)] (Tatar, Atakol & Ülkü, 2002); [ZnI2Zn(salpd2-)(dmf)] (Arıcı & Aksu, 2002); [HgCl2Ni(salpd2-)] (Arıcı et al., 2006). We describe here the structure of a new heteronuclear dimeric complex, [ZnI2Ni(salpd2-)(methyl pyridine)2]. Where salpd2-= N,N'-bis(salicylidene)-1,3-propanediamine (C17H16N2O2), LDMH2 = N,N'-bis(salicylidene)-2,2'-dimethyl-1, 3-propanediamine (C19H22N2O2), dmf = dimethylformamide (C3H7NO), piperidine (C5H11N), methyl pyridine (C6H7N).
In the title complex (Fig. 1), the NiII ion is in a distorted octahedral coordination environment, formed by two O and N atoms from chelating salpd2- ligand in the equatorial plane [Ni—O1= 2.038 (5), Ni—O2= 2.029 (5), Ni—N1= 2.016 (7) and 2.021 (6) Å] and two N atoms of two symmetry-related methyl pyridine ligands in the axial positions [Ni—N3=2.177 (6) and Ni—N4= 2.214 (7) Å]. The bond angles around the Ni atom range between 79.52 (19) and 100.1 (3)°. The distance of atom Ni from the O1/O2/N1/N2 mean plane is 0.0050 (10) Å. The equatorial plane (O1/O2/N1/N2) is almost perpendicular of the (N3/Ni/N4) plane, dihedral angle between them is 89 (2)°.
The coordination around the ZnII ion is distorted tetrahedral, with two bridging O atoms of the chelating salpd2- ligand [Zn—O1=1.985 (5) and Zn—O2=1.987 (5) Å] and two iodine atoms. The bond angles around the Zn atom range between 81.9 (2) and 116.49 (16)°. The planes Zn/O1/Ni/O2 and I1/Zn/I2 are almast perpendicular each other, dihedral angle between these two plane is 88.06 (13)°.
The six-membered chelate ring (Ni, N1, C8, C9, C10, N2) adopts a boat conformation, indicated by the endocyclic torsion angles and by the deviations of para-positioned boat atoms Ni 0.0552 (10)Å and C9 0.713 (11)Å from the mean plane through N1, N2, C8 and C10. The crystal structure is stabilized by weak hydrogen bonds (Table 1). The moecule has an intermolecular hydrogen bonding set involving the two molecules: [C10—H10B···I1i] (symmetry code: (i) x + 1/2, y - 1/2, z). The molecule also has two intramolecular hydrogen bonds between the N atoms and the phenyl hydrogen atoms: [C22—H22···N2] and [C28—H28···N2].
A comparison of the space group, Mc···Mt and Mt—R distances are given in Table 2 for the similar oxygen-bridged dinuclear complexes reported previously. Where Mc (Cu, Zn, Ni) central metal ion, Mt (Zn, Hg) terminal metal ion and R (Cl, Br, I) is the ion which bonded to terminal metal ion. The distances from the Zn ion to I ions are longer than the distances from Zn and Hg ions to Cl and Br ions as given in the table 2.