摘要:
The crystal structure of a zinc complex with acetone 3-hexamethyleneiminylthiosemicarbazone has been determined and contains two anionic thiosemicarbazone ligands prepared from acetone. Bis(acetone 3-hexamethyleneiminylthtiosemicarbazone) zinc (II), [Zn(Acehexim)(2)], crystallizes monoclinic, P2(1)/c, a = 8.406(3), b = 13.518(5), c = 22.136(3) Angstrom, beta = 100.61(3), V = 2472.3(12) Angstrom(3), Z = 4. The distortion from tetrahedral symmetry, while substantial, is less than found for other 4-coordinate zinc complexes with bulkier thiosemicarbazone ligands. The largest angle, S-Zn-S, is 126.44(14)degrees and the smallest angle, 87.1(3)degrees, is the average of the chelating N-Zn-S angles. The angle between the mean planes of the two chelate rings is 79.41(21)degrees. Disorder within the hexamethyleneiminyl rings, which is common for this function, causes a larger than desired R-value. (C) 2002 Elsevier Science B.V. All rights reserved.