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Antimony(III) Halide‐Assisted Stereospecific Coordination of Thione
Author(s) -
Adinarayana Mannem,
Prabusankar Ganesan
Publication year - 2021
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.202100325
Subject(s) - antimony , chemistry , stereospecificity , halide , imidazole , steric effects , thiourea , ligand (biochemistry) , yield (engineering) , medicinal chemistry , stereochemistry , crystallography , inorganic chemistry , organic chemistry , catalysis , materials science , receptor , biochemistry , metallurgy
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 ‐[( L 1 )SbCl 3 ] ( syn‐ 1 ) and anti ‐[( L 1 )SbBr 3 ] ( anti‐ 2 ) have been synthesized in very good yield by the reaction between the spatially defined steric impact ligand [(IPaul)S] ( L 1 ) ([(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.