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The title compound, C20H16N4O·0.5C7H8, crystallizes with half a toluene mol­ecule (disordered about a centre of inversion); the seven-membered diazepine ring adopts a twist-boat conformation. The structure features two intra­molecular (N—H...O and N—H...N) and one inter­molecular hydrogen bond. Additional inter­molecular π–π inter­actions (3.556–3.651 Å) give rise to a three-dimensional network in the crystal structure.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807042687/ng2316sup1.cif
Contains datablocks I, global

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S1600536807042687/ng2316Isup2.hkl
Contains datablock I

CCDC reference: 663806

Key indicators

  • Single-crystal X-ray study
  • T = 293 K
  • Mean [sigma](C-C) = 0.002 Å
  • Disorder in solvent or counterion
  • R factor = 0.052
  • wR factor = 0.148
  • Data-to-parameter ratio = 30.0

checkCIF/PLATON results

No syntax errors found



Alert level A REFLT03_ALERT_3_A Reflection count > 15% excess reflns - sys abs data present? From the CIF: _diffrn_reflns_theta_max 27.43 From the CIF: _diffrn_reflns_theta_full 27.43 From the CIF: _reflns_number_total 8631 TEST2: Reflns within _diffrn_reflns_theta_max Count of symmetry unique reflns 4400 Completeness (_total/calc) 196.16%
Author Response: Refinement with redundant (i.e. not merged/unique) data set: data set combined of two independent measurements; refinement with BASF parameter as the scale factor for second data set.

Alert level B PLAT021_ALERT_1_B Ratio Unique / Expected Reflections too High ... 1.96
Alert level C PLAT041_ALERT_1_C Calc. and Rep. SumFormula Strings Differ .... ? PLAT042_ALERT_1_C Calc. and Rep. MoietyFormula Strings Differ .... ? PLAT045_ALERT_1_C Calculated and Reported Z Differ by ............ 0.50 Ratio PLAT066_ALERT_1_C Predicted and Reported Transmissions Identical . ? PLAT154_ALERT_1_C The su's on the Cell Angles are Equal (x 10000) 100 Deg. PLAT180_ALERT_3_C Check Cell Rounding: # of Values Ending with 0 = 3 PLAT243_ALERT_4_C High 'Solvent' Ueq as Compared to Neighbors for C54 PLAT244_ALERT_4_C Low 'Solvent' Ueq as Compared to Neighbors for C51 PLAT244_ALERT_4_C Low 'Solvent' Ueq as Compared to Neighbors for C52 PLAT250_ALERT_2_C Large U3/U1 Ratio for Average U(i,j) Tensor .... 2.15 PLAT302_ALERT_4_C Anion/Solvent Disorder ......................... 50.00 Perc.
Alert level G PLAT199_ALERT_1_G Check the Reported _cell_measurement_temperature 293 K PLAT200_ALERT_1_G Check the Reported _diffrn_ambient_temperature . 293 K
1 ALERT level A = In general: serious problem 1 ALERT level B = Potentially serious problem 11 ALERT level C = Check and explain 2 ALERT level G = General alerts; check 8 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 1 ALERT type 2 Indicator that the structure model may be wrong or deficient 2 ALERT type 3 Indicator that the structure quality may be low 4 ALERT type 4 Improvement, methodology, query or suggestion 0 ALERT type 5 Informative message, check

Comment top

Benzodiazepines are one of the most important substances in medicinal chemistry, representing the prototypical 'privileged structure' (Evans et al. 1988). Compounds based on the diazepine skeleton are psychotherapeutic agents widely used for the treatment of anxiety and neurosis (Sternbach, 1978). The crystal structure analysis of N-(4-methylpyridin-2-yl)-5H-dibenzo[d,f][1,3] diazepine-6-carboxamide was performed to find out the influence of methyl substituent on molecular geometry and packing properties. The molecular structure of the title compound is shown in Fig. 1. The symmetrically independent part of the unit cell is composed of title compound molecule and disordered toluene molecule. The core of the diazepine molecule is composed of a seven-membered ring to which a pyridin-2-ylamino carbonyl substituent is attached and two benzene rings are fused. The puckering parameters of the seven-membered ring (atoms in N3, C2,···,C31 sequence): q2 = 0.5752, q3 = 0.0819, QT = 0.5810, φ2 = -6.33, φ3 = 10.46, θ2 = 81.89°, indicate a twisted-boat conformation with a pseudo-mirror plane (Cs) through the N3 atom and the centre of C41—C46 bond. From the chemical point of view there is also a pseudo 2-fold axis (C2) bisecting the diazepine ring through C2 and the center of C36–C46 bond. The bond lengths and valence angles are typical and comparable with the values reported in the literature (Allen et al. 1987). Two N atoms are involved in hydrogen bonds: two intra- and one intermolecular (Table 1). The intermolecular N3—H3···O1 [-x, 1 - y, 1 - z] interaction is relatively weak due to simultaneous donor participation in intramolecular interaction (bifurcated hydrogen bond). In addition, there are two types of ππ interactions, which assist in the stabilization of the three-dimensional-packing. The benzene ring C31···C36 is strictly parallel to another one in position [1 - x, 1 - y, 1 - z], with interplanar spacing of 3.556 Å, the ring-centroid separation of 3.883 Å and with ring offset of 1.560 Å. The pyridine ring is nearly parallel to another benzene ring C41···C46 of the molecule at [1 - x, - y, 1 - z]. The interplanar spacing is 3.651 Å, the corresponding ring-centroid separation is 3.790 Å, resulting in the offset of 1.017 Å. The ππ interaction are illustrated in Fig. 2. As it can be seen in Fig. 2, the solvent accessible cavities at 0, 1/2, 1 are filled with disordered toluene molecules which stabilized three-dimensional structure (total potential solvent area of 195.7 Å3 makes 20.3% of unit cell volume).

Related literature top

For literature on the medicinal and psychotherapeutic uses of similar compounds, see Evans et al. (1988); Sternbach (1978). For comparativ bond distances, see Allen et al. (1987).

Experimental top

Recrystallization from toluene afforded crystals suitable for X-ray measurements.

Refinement top

H atoms bonded to N atoms were located in a difference Fourier map and refined with distance restraints of N—H = 0.87 (2) Å, and with Uiso(H) = 1.2Ueq(N). All other H atom positions were also observed in difference Fourier map. Nevertheless, in the refinement procedure the hydrogen atoms were positioned geometrically and refined using a riding model (including free rotation about the C—C bond), with C—H = 0.95–0.99 Å (C—H = 0.97 Å for CH2 groups, 0.96 Å for CH3 groups, and 0.93 Å for aromatic CH) and with Uiso(H) = 1.5Ueq(C) for methyl groups and Uiso(H) = 1.2Ueq(C) for all other H atoms. Refinement was performed with data set combined of two independent measurements and with BASF parameter as the scale factor for second data set (BASF parameter converged to 0.94477)

Structure description top

Benzodiazepines are one of the most important substances in medicinal chemistry, representing the prototypical 'privileged structure' (Evans et al. 1988). Compounds based on the diazepine skeleton are psychotherapeutic agents widely used for the treatment of anxiety and neurosis (Sternbach, 1978). The crystal structure analysis of N-(4-methylpyridin-2-yl)-5H-dibenzo[d,f][1,3] diazepine-6-carboxamide was performed to find out the influence of methyl substituent on molecular geometry and packing properties. The molecular structure of the title compound is shown in Fig. 1. The symmetrically independent part of the unit cell is composed of title compound molecule and disordered toluene molecule. The core of the diazepine molecule is composed of a seven-membered ring to which a pyridin-2-ylamino carbonyl substituent is attached and two benzene rings are fused. The puckering parameters of the seven-membered ring (atoms in N3, C2,···,C31 sequence): q2 = 0.5752, q3 = 0.0819, QT = 0.5810, φ2 = -6.33, φ3 = 10.46, θ2 = 81.89°, indicate a twisted-boat conformation with a pseudo-mirror plane (Cs) through the N3 atom and the centre of C41—C46 bond. From the chemical point of view there is also a pseudo 2-fold axis (C2) bisecting the diazepine ring through C2 and the center of C36–C46 bond. The bond lengths and valence angles are typical and comparable with the values reported in the literature (Allen et al. 1987). Two N atoms are involved in hydrogen bonds: two intra- and one intermolecular (Table 1). The intermolecular N3—H3···O1 [-x, 1 - y, 1 - z] interaction is relatively weak due to simultaneous donor participation in intramolecular interaction (bifurcated hydrogen bond). In addition, there are two types of ππ interactions, which assist in the stabilization of the three-dimensional-packing. The benzene ring C31···C36 is strictly parallel to another one in position [1 - x, 1 - y, 1 - z], with interplanar spacing of 3.556 Å, the ring-centroid separation of 3.883 Å and with ring offset of 1.560 Å. The pyridine ring is nearly parallel to another benzene ring C41···C46 of the molecule at [1 - x, - y, 1 - z]. The interplanar spacing is 3.651 Å, the corresponding ring-centroid separation is 3.790 Å, resulting in the offset of 1.017 Å. The ππ interaction are illustrated in Fig. 2. As it can be seen in Fig. 2, the solvent accessible cavities at 0, 1/2, 1 are filled with disordered toluene molecules which stabilized three-dimensional structure (total potential solvent area of 195.7 Å3 makes 20.3% of unit cell volume).

For literature on the medicinal and psychotherapeutic uses of similar compounds, see Evans et al. (1988); Sternbach (1978). For comparativ bond distances, see Allen et al. (1987).

Computing details top

Data collection: COLLECT (Nonius, 2000); cell refinement: SCALEPACK (Otwinowski & Minor, 1997); data reduction: SCALEPACK and DENZO (Otwinowski & Minor, 1997); program(s) used to solve structure: SIR92 (Altomare et al., 1994); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97 (Sheldrick, 1997).

Figures top
[Figure 1] Fig. 1. ORTEP-3 (Farrugia, 1997) drawing of the title compound with labels. Displacement ellipsoids of non-H atoms drawn at 30% probability level.
[Figure 2] Fig. 2. ORTEP-3 (Farrugia, 1997) drawing of the crystal packing viewed along [010] with marked ππ interactions (dashed bonds). Hydrogen atoms are omitted.
N-(4-Methylpyridin-2-yl)-5H-dibenzo[d,f][1,3]diazepine-6- carboxamide toluene hemisolvate top
Crystal data top
C20H16N4O·0.5C7H8Z = 2
Mr = 374.44F(000) = 394
Triclinic, P1Dx = 1.291 Mg m3
Hall symbol: -P 1Mo Kα radiation, λ = 0.71073 Å
a = 8.9323 (2) ÅCell parameters from 2469 reflections
b = 9.6863 (2) Åθ = 1.0–27.5°
c = 12.1478 (3) ŵ = 0.08 mm1
α = 77.050 (1)°T = 293 K
β = 87.529 (1)°Prism, orange
γ = 70.191 (1)°0.29 × 0.21 × 0.15 mm
V = 963.08 (4) Å3
Data collection top
Nonius KappaCCD
diffractometer
8631 independent reflections
Radiation source: fine-focus sealed tube5192 reflections with I > 2σ(I)
Horizontally mounted graphite crystal monochromatorRint = 0.000
Detector resolution: 9 pixels mm-1θmax = 27.4°, θmin = 2.4°
φ and ω scans to fill asymmetric unith = 1111
Absorption correction: multi-scan
(DENZO and SCALEPACK; Otwinowski & Minor, 1997)
k = 1212
Tmin = 0.977, Tmax = 0.988l = 015
17061 measured reflections
Refinement top
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.052H atoms treated by a mixture of independent and constrained refinement
wR(F2) = 0.148 w = 1/[σ2(Fo2) + (0.0656P)2 + 0.0957P]
where P = (Fo2 + 2Fc2)/3
S = 1.02(Δ/σ)max = 0.01
8631 reflectionsΔρmax = 0.18 e Å3
288 parametersΔρmin = 0.18 e Å3
0 restraintsExtinction correction: SHELXL97 (Sheldrick, 1997), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
Primary atom site location: structure-invariant direct methodsExtinction coefficient: 0.014 (3)
Crystal data top
C20H16N4O·0.5C7H8γ = 70.191 (1)°
Mr = 374.44V = 963.08 (4) Å3
Triclinic, P1Z = 2
a = 8.9323 (2) ÅMo Kα radiation
b = 9.6863 (2) ŵ = 0.08 mm1
c = 12.1478 (3) ÅT = 293 K
α = 77.050 (1)°0.29 × 0.21 × 0.15 mm
β = 87.529 (1)°
Data collection top
Nonius KappaCCD
diffractometer
8631 independent reflections
Absorption correction: multi-scan
(DENZO and SCALEPACK; Otwinowski & Minor, 1997)
5192 reflections with I > 2σ(I)
Tmin = 0.977, Tmax = 0.988Rint = 0.000
17061 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0520 restraints
wR(F2) = 0.148H atoms treated by a mixture of independent and constrained refinement
S = 1.02Δρmax = 0.18 e Å3
8631 reflectionsΔρmin = 0.18 e Å3
288 parameters
Special details top

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 with redundant (i.e. not merged/unique) data set: data set combined of two independent measurements; refinement with BASF parameter as the scale factor for second data set. 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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/UeqOcc. (<1)
C10.17801 (13)0.23113 (12)0.51837 (9)0.0458 (3)
O10.07918 (10)0.32376 (9)0.56173 (8)0.0611 (2)
C20.27718 (12)0.28173 (12)0.42283 (9)0.0430 (3)
N30.23275 (11)0.43460 (10)0.38922 (9)0.0505 (3)
H30.1546 (16)0.4821 (14)0.4286 (10)0.058 (4)*
C310.34450 (12)0.51109 (11)0.36175 (9)0.0435 (3)
C320.32397 (14)0.63436 (12)0.40814 (10)0.0534 (3)
H320.23840.66450.45400.064*
C330.42946 (16)0.71276 (13)0.38688 (11)0.0605 (3)
H330.41400.79630.41740.073*
C340.55721 (15)0.66709 (14)0.32055 (12)0.0603 (3)
H340.62970.71840.30710.072*
C350.57746 (14)0.54485 (13)0.27409 (10)0.0521 (3)
H350.66450.51490.22940.062*
C360.47134 (12)0.46415 (11)0.29185 (9)0.0427 (2)
C460.49668 (12)0.33809 (12)0.23420 (9)0.0430 (2)
C450.56872 (14)0.34457 (14)0.13001 (10)0.0560 (3)
H450.59350.43020.09700.067*
C440.60463 (17)0.22908 (16)0.07395 (12)0.0687 (4)
H440.65130.23800.00400.082*
C430.57127 (17)0.10084 (17)0.12164 (12)0.0702 (4)
H430.59720.02140.08520.084*
C420.49880 (14)0.09106 (14)0.22422 (11)0.0565 (3)
H420.47650.00390.25650.068*
C410.45811 (12)0.20788 (12)0.28090 (9)0.0428 (2)
N40.38063 (10)0.17891 (10)0.38303 (8)0.0450 (2)
N20.20866 (12)0.08255 (11)0.54501 (9)0.0513 (3)
H20.2779 (16)0.0327 (15)0.5026 (12)0.069 (4)*
C210.12759 (13)0.00035 (12)0.61882 (9)0.0458 (3)
C220.03000 (14)0.05641 (14)0.70102 (10)0.0531 (3)
H220.01550.15280.71030.064*
C230.04599 (15)0.03245 (15)0.76942 (10)0.0577 (3)
C240.01902 (16)0.17409 (15)0.75086 (11)0.0645 (4)
H240.06790.23740.79460.077*
C250.08051 (16)0.22065 (14)0.66741 (12)0.0624 (3)
H250.09700.31660.65650.075*
N260.15561 (12)0.13681 (10)0.60055 (8)0.0539 (3)
C270.1531 (2)0.0259 (2)0.86000 (13)0.0853 (5)
H27A0.19500.04980.89970.102*
H27B0.23930.11460.82600.102*
H27C0.09330.05020.91210.102*
C500.0601 (10)0.3448 (10)0.1225 (8)0.141 (4)0.50
H50A0.05590.40060.19910.169*0.50
H50B0.01350.29080.11530.169*0.50
H50C0.16590.27490.10320.169*0.50
C510.0177 (5)0.4482 (4)0.0469 (2)0.0800 (9)0.50
C520.1356 (3)0.4569 (3)0.0196 (3)0.0699 (17)0.50
H520.24110.39750.01500.084*0.50
C530.0958 (5)0.5544 (4)0.0928 (2)0.0986 (13)0.50
H530.17470.56030.13730.118*0.50
C540.0619 (6)0.6433 (4)0.0996 (3)0.118 (4)0.50
H540.08860.70850.14860.142*0.50
C550.1799 (3)0.6345 (4)0.0332 (4)0.1057 (14)0.50
H550.28540.69400.03770.127*0.50
C560.1400 (4)0.5370 (5)0.0401 (3)0.099 (3)0.50
H560.21890.53120.08450.119*0.50
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
C10.0459 (6)0.0426 (6)0.0505 (6)0.0172 (5)0.0101 (5)0.0112 (5)
O10.0620 (5)0.0468 (5)0.0748 (6)0.0191 (4)0.0306 (5)0.0182 (4)
C20.0421 (5)0.0398 (6)0.0486 (6)0.0160 (4)0.0072 (5)0.0103 (5)
N30.0454 (5)0.0385 (5)0.0656 (6)0.0132 (4)0.0204 (5)0.0124 (4)
C310.0451 (6)0.0366 (5)0.0464 (6)0.0134 (4)0.0077 (5)0.0062 (4)
C320.0592 (7)0.0416 (6)0.0570 (7)0.0142 (5)0.0147 (6)0.0128 (5)
C330.0734 (8)0.0438 (7)0.0698 (8)0.0238 (6)0.0090 (7)0.0187 (6)
C340.0628 (7)0.0495 (7)0.0760 (9)0.0293 (6)0.0082 (7)0.0139 (6)
C350.0500 (6)0.0488 (7)0.0588 (7)0.0208 (5)0.0128 (5)0.0101 (5)
C360.0435 (5)0.0381 (6)0.0446 (6)0.0137 (4)0.0060 (5)0.0063 (4)
C460.0387 (5)0.0444 (6)0.0449 (6)0.0130 (4)0.0064 (5)0.0104 (5)
C450.0584 (7)0.0615 (7)0.0519 (7)0.0253 (6)0.0156 (6)0.0150 (6)
C440.0777 (9)0.0797 (10)0.0563 (8)0.0304 (7)0.0272 (7)0.0292 (7)
C430.0783 (9)0.0711 (9)0.0721 (9)0.0259 (7)0.0227 (8)0.0404 (7)
C420.0594 (7)0.0505 (7)0.0644 (8)0.0199 (6)0.0138 (6)0.0221 (6)
C410.0389 (5)0.0421 (6)0.0459 (6)0.0114 (4)0.0058 (5)0.0112 (4)
N40.0454 (5)0.0399 (5)0.0496 (5)0.0148 (4)0.0107 (4)0.0110 (4)
N20.0558 (6)0.0414 (5)0.0557 (6)0.0171 (4)0.0203 (5)0.0110 (4)
C210.0452 (6)0.0430 (6)0.0466 (6)0.0160 (5)0.0030 (5)0.0033 (5)
C220.0604 (7)0.0534 (7)0.0495 (6)0.0248 (6)0.0104 (6)0.0121 (5)
C230.0575 (7)0.0733 (9)0.0446 (6)0.0305 (6)0.0065 (6)0.0053 (6)
C240.0656 (8)0.0658 (9)0.0628 (8)0.0354 (7)0.0029 (7)0.0049 (6)
C250.0651 (8)0.0464 (7)0.0745 (9)0.0238 (6)0.0006 (7)0.0026 (6)
N260.0550 (6)0.0419 (5)0.0615 (6)0.0163 (4)0.0049 (5)0.0058 (4)
C270.0911 (11)0.1162 (13)0.0609 (9)0.0534 (10)0.0294 (8)0.0204 (9)
C500.189 (11)0.164 (8)0.103 (4)0.106 (7)0.024 (5)0.027 (5)
C510.104 (3)0.076 (2)0.0657 (19)0.055 (2)0.010 (2)0.0105 (16)
C520.049 (3)0.080 (4)0.076 (2)0.037 (3)0.010 (2)0.018 (2)
C530.100 (3)0.114 (4)0.089 (3)0.062 (3)0.022 (2)0.008 (2)
C540.157 (9)0.081 (4)0.114 (6)0.049 (5)0.037 (5)0.010 (4)
C550.081 (3)0.105 (3)0.117 (4)0.037 (2)0.014 (3)0.011 (3)
C560.096 (6)0.114 (7)0.084 (3)0.054 (5)0.007 (3)0.015 (3)
Geometric parameters (Å, º) top
C1—O11.223 (1)N2—H20.87 (1)
C1—N21.335 (1)C21—N261.327 (1)
C1—C21.524 (2)C21—C221.380 (2)
C2—N41.278 (1)C22—C231.385 (2)
C2—N31.364 (1)C22—H220.9300
N3—C311.421 (1)C23—C241.379 (2)
N3—H30.88 (1)C23—C271.506 (2)
C31—C321.386 (2)C24—C251.370 (2)
C31—C361.397 (1)C24—H240.9300
C32—C331.381 (2)C25—N261.340 (2)
C32—H320.9300C25—H250.9300
C33—C341.373 (2)C27—H27A0.9600
C33—H330.9300C27—H27B0.9600
C34—C351.378 (2)C27—H27C0.9600
C34—H340.9300C50—C511.455 (8)
C35—C361.402 (2)C50—H50A0.9600
C35—H350.9300C50—H50B0.9600
C36—C461.488 (2)C50—H50C0.9600
C46—C451.393 (2)C51—C521.3900
C46—C411.410 (2)C51—C561.3900
C45—C441.377 (2)C52—C531.3900
C45—H450.9300C52—H520.9300
C44—C431.372 (2)C53—C541.3900
C44—H440.9300C53—H530.9300
C43—C421.378 (2)C54—C551.3900
C43—H430.9300C54—H540.9300
C42—C411.391 (1)C55—C561.3900
C42—H420.9300C55—H550.9300
C41—N41.414 (1)C56—H560.9300
N2—C211.410 (1)
O1—C1—N2126.0 (1)C2—N4—C41123.5 (1)
O1—C1—C2120.4 (1)C1—N2—C21128.8 (1)
N2—C1—C2113.7 (1)C1—N2—H2114.6 (9)
N4—C2—N3130.1 (1)C21—N2—H2115.8 (9)
N4—C2—C1117.1 (1)N26—C21—C22124.3 (1)
N3—C2—C1112.7 (1)N26—C21—N2112.9 (1)
C2—N3—C31122.7 (1)C22—C21—N2122.8 (1)
C2—N3—H3113.0 (8)C21—C22—C23118.9 (1)
C31—N3—H3111.5 (8)C21—C22—H22120.5
C32—C31—C36120.8 (1)C23—C22—H22120.5
C32—C31—N3117.3 (1)C24—C23—C22117.4 (1)
C36—C31—N3121.9 (1)C24—C23—C27122.3 (1)
C33—C32—C31120.6 (1)C22—C23—C27120.3 (1)
C33—C32—H32119.7C25—C24—C23119.4 (1)
C31—C32—H32119.7C25—C24—H24120.3
C34—C33—C32119.8 (1)C23—C24—H24120.3
C34—C33—H33120.1N26—C25—C24124.2 (1)
C32—C33—H33120.1N26—C25—H25117.9
C33—C34—C35119.6 (1)C24—C25—H25117.9
C33—C34—H34120.2C21—N26—C25115.7 (1)
C35—C34—H34120.2C23—C27—H27A109.5
C34—C35—C36122.3 (1)C23—C27—H27B109.5
C34—C35—H35118.9H27A—C27—H27B109.5
C36—C35—H35118.9C23—C27—H27C109.5
C31—C36—C35116.8 (1)H27A—C27—H27C109.5
C31—C36—C46124.0 (1)H27B—C27—H27C109.5
C35—C36—C46119.1 (1)C52—C51—C56120.0
C45—C46—C41117.3 (1)C52—C51—C50119.7 (5)
C45—C46—C36118.8 (1)C56—C51—C50120.3 (5)
C41—C46—C36123.9 (1)C51—C52—C53120.0
C44—C45—C46122.5 (1)C51—C52—H52120.0
C44—C45—H45118.7C53—C52—H52120.0
C46—C45—H45118.7C52—C53—C54120.0
C43—C44—C45119.8 (1)C52—C53—H53120.0
C43—C44—H44120.1C54—C53—H53120.0
C45—C44—H44120.1C55—C54—C53120.0
C44—C43—C42119.2 (1)C55—C54—H54120.0
C44—C43—H43120.4C53—C54—H54120.0
C42—C43—H43120.4C56—C55—C54120.0
C43—C42—C41121.9 (1)C56—C55—H55120.0
C43—C42—H42119.1C54—C55—H55120.0
C41—C42—H42119.1C55—C56—C51120.0
C42—C41—C46119.2 (1)C55—C56—H56120.0
C42—C41—N4113.7 (1)C51—C56—H56120.0
C46—C41—N4127.1 (1)
O1—C1—C2—N4178.5 (1)C45—C46—C41—C422.6 (2)
N2—C1—C2—N42.8 (2)C36—C46—C41—C42174.7 (1)
O1—C1—C2—N34.9 (2)C45—C46—C41—N4177.9 (1)
N2—C1—C2—N3173.7 (1)C36—C46—C41—N44.9 (2)
N4—C2—N3—C3144.4 (2)N3—C2—N4—C419.1 (2)
C1—C2—N3—C31139.6 (1)C1—C2—N4—C41166.7 (1)
C2—N3—C31—C32132.8 (1)C42—C41—N4—C2149.2 (1)
C2—N3—C31—C3646.6 (2)C46—C41—N4—C231.2 (2)
C36—C31—C32—C330.5 (2)O1—C1—N2—C216.7 (2)
N3—C31—C32—C33178.9 (1)C2—C1—N2—C21171.9 (1)
C31—C32—C33—C340.9 (2)C1—N2—C21—N26160.4 (1)
C32—C33—C34—C351.1 (2)C1—N2—C21—C2219.7 (2)
C33—C34—C35—C360.1 (2)N26—C21—C22—C230.5 (2)
C32—C31—C36—C351.7 (2)N2—C21—C22—C23179.6 (1)
N3—C31—C36—C35177.7 (1)C21—C22—C23—C240.0 (2)
C32—C31—C36—C46176.7 (1)C21—C22—C23—C27179.9 (1)
N3—C31—C36—C463.9 (2)C22—C23—C24—C250.3 (2)
C34—C35—C36—C311.5 (2)C27—C23—C24—C25179.7 (1)
C34—C35—C36—C46177.0 (1)C23—C24—C25—N260.1 (2)
C31—C36—C46—C45148.6 (1)C22—C21—N26—C250.7 (2)
C35—C36—C46—C4529.8 (2)N2—C21—N26—C25179.4 (1)
C31—C36—C46—C4134.2 (2)C24—C25—N26—C210.4 (2)
C35—C36—C46—C41147.5 (1)C56—C51—C52—C530.0
C41—C46—C45—C441.1 (2)C50—C51—C52—C53179.4 (5)
C36—C46—C45—C44176.3 (1)C51—C52—C53—C540.0
C46—C45—C44—C430.9 (2)C52—C53—C54—C550.0
C45—C44—C43—C421.4 (2)C53—C54—C55—C560.0
C44—C43—C42—C410.1 (2)C54—C55—C56—C510.0
C43—C42—C41—C462.2 (2)C52—C51—C56—C550.0
C43—C42—C41—N4178.2 (1)C50—C51—C56—C55179.4 (5)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
N3—H3···O10.88 (1)2.22 (1)2.677 (1)112 (1)
N3—H3···O1i0.88 (1)2.31 (1)3.108 (1)151 (1)
N2—H2···N40.87 (1)2.19 (1)2.644 (1)112 (1)
Symmetry code: (i) x, y+1, z+1.

Experimental details

Crystal data
Chemical formulaC20H16N4O·0.5C7H8
Mr374.44
Crystal system, space groupTriclinic, P1
Temperature (K)293
a, b, c (Å)8.9323 (2), 9.6863 (2), 12.1478 (3)
α, β, γ (°)77.050 (1), 87.529 (1), 70.191 (1)
V3)963.08 (4)
Z2
Radiation typeMo Kα
µ (mm1)0.08
Crystal size (mm)0.29 × 0.21 × 0.15
Data collection
DiffractometerNonius KappaCCD
Absorption correctionMulti-scan
(DENZO and SCALEPACK; Otwinowski & Minor, 1997)
Tmin, Tmax0.977, 0.988
No. of measured, independent and
observed [I > 2σ(I)] reflections
17061, 8631, 5192
Rint0.000
(sin θ/λ)max1)0.648
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.052, 0.148, 1.02
No. of reflections8631
No. of parameters288
H-atom treatmentH atoms treated by a mixture of independent and constrained refinement
Δρmax, Δρmin (e Å3)0.18, 0.18

Computer programs: COLLECT (Nonius, 2000), SCALEPACK (Otwinowski & Minor, 1997), SCALEPACK and DENZO (Otwinowski & Minor, 1997), SIR92 (Altomare et al., 1994), SHELXL97 (Sheldrick, 1997), ORTEP-3 (Farrugia, 1997).

Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
N3—H3···O10.88 (1)2.22 (1)2.677 (1)112 (1)
N3—H3···O1i0.88 (1)2.31 (1)3.108 (1)151 (1)
N2—H2···N40.87 (1)2.19 (1)2.644 (1)112 (1)
Symmetry code: (i) x, y+1, z+1.
 

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