The Preparation, Characterization and X-Ray Structural Analysis of Tetrakis[1-methyl-3-(2-propyl)-2(3H)-imidazolethione]zinc(II) Tetrafluoroborate and Tetrakis[1-methyl-3-(1-butyl)-2(3H)-imidazolethione]zinc(II) Tetrafluoroborate
Chemistry and Biochemistry
4][BF4]2 (1) and [Zn(mnbit)4][BF4]2 (2) were synthesized and characterized via std. solid and soln. state methods including single crystal x-ray crystallog. (mipit = 1-methyl-3-(2-propyl)-2(3H)-imidazolethione and mnbit = 1-methyl-3-(1-butyl)-2(3H)-imidazolethione). Compd. 1 crystallizes in monoclinic space group P21/n with a 11.804(2), b 16.710(3), c 25.763(5) Å, γ 90.14(3)° and Z = 4, whereas compd. 2 crystallizes in tetragonal space group I.hivin.4 with a = b 11.6517(16), c 16.820(3) Å, and Z = 2. Both complexes are high melting, colorless water sol. 2:1 electrolyte solids that state have flattened tetrahedral ZnS4 coordination geometry. The iso-Pr analog is slightly more distorted than the Bu analog, and the degree of distortion is not directly related to the steric bulk of the ligand.
Williams D, Concepcion J, Koether M, Arrowood K, Carmack A, Hamilton T, Luck S, Ndomo M, Teel C, VanDerveer D. 2006. The preparation, characterization and X-ray structural analysis of tetrakis[1-methyl-3-(2-propyl)-2(3H)-imidazolethione]zinc(II) tetrafluoroborate and tetrakis[1-methyl-3-(1-butyl)-2(3H)- imidazolethione]zinc(II) tetrafluoroborate. Journal of Chemical Crystallography 36(8):453-7.