Antimony(III) Halide-Assisted Stereospecific Coordination of Thione |
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Authors: | Mannem Adinarayana Prof. Ganesan Prabusankar |
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Affiliation: | Department of Chemistry, Indian Institute of Technology Hyderabad Kandi, Sangareddy, Telangana, 502285 India |
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Abstract: | The antimony halide-aided stereospecific coordination of a cyclic thiourea-type of ligand is observed for the first time. The antimony(III) imidazole thione complexes syn-[( L1 )SbCl3] ( syn- 1 ) and anti-[( L1 )SbBr3] ( anti- 2 ) have been synthesized in very good yield by the reaction between the spatially defined steric impact ligand [(IPaul)S] ( L1 ) ([(IPaul)S]=1,3-bis(2,4-methyl-6-diphenyl phenyl)imidazole thione) and corresponding antimony halide. The stereoselective formation of complexes syn- 1 and anti- 2 has been confirmed by both NMR and single-crystal X-ray diffraction studies. Interestingly the stereospecific nature of syn- 1 and anti- 2 remains intact in solution. Furthermore, the thermal stability of antimony(III) imidazole thione complexes were examined by TGA analysis. |
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Keywords: | Conformation Antimony Thione Imidazole Main Group Chemistry |
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