Summary
Crystal structures have been determined for two nickel complexes of the monodentate S-donating ligand 1-methyl imidazoline-2(3H)-thione (mimtH). The parainagnetic trans-octahedral complex, [Ni(mimtH)4Cl2], crystallises in an orthorhombic unit cell (a=12.459(1),b=13.078(1),c=15.406(1)Å, V=2510.24Å3,Z=4, space group Pbca). Final conventional R from 1848 observed data [F>4σ⊂(F)] is 0.0273. The Ni−Cl distance is. 2.537(1) Å and the mean Ni−S distance is 2.479 Å.
The diamagnetic complex, [Ni(mimtH)4](BF4)2, contains a distorted square-planar cation which is H-bonded. to [BF4]− anions. The complex crystallises in an orthorhombic unit cell [a=9.810(1),b=14.585(1),c=20.120(2)Å, V=2878.8Å3,Z=4, space group Pbcn]. Final conventional R from 1756 observed data [F>4σ⊂(F)] is 0.0629. The average Ni−S distance is 2.216Å.
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Raper, E.S., Britton, A.M. & Clegg, W. Nickel complexes of 1-methylimidazoline-2(3H)-thione: crystal structures of trans-dichlorotetrakis(1-methylimidazoline-2(3H)-thione)nickel(II) and tetrakis[1-methylimidazoline-2(3H)-thione]nickel(II) tetrafluoroborate. Transition Met Chem 14, 351–355 (1989). https://doi.org/10.1007/BF01032508
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DOI: https://doi.org/10.1007/BF01032508