Triisopropyl Phosphorotrithioite as a Monodantate and a Tridentate Ligand in Complexes with Copper(I) Halides

Transformation of copper(I) thiophosphite complexes into copper(I) clusters bridged by diisopropyldisulfides and diethyldisulfides

“…In the present work, we describe chemical transformations observed in polymeric and tetrameric Cu(I) complexes with thiophosphite ligands upon recrystallization and storage. It was shown that tetrameric cuban-like derivatives with monodentate coordination of copper atoms, [(RS) 3 P·CuX] 4 , 1 and 2, as well as the polymeric bidentate complexes [(RS) 3 P·CuX] n , 3, whose structures were determined earlier [6,8], are transformed into polymeric clusters [(RS) 2 ·2CuX] n 4-6 at the storage or upon recrystallization in polar solvents (CHCl 3 and CH 3 CN):…”

“…For this reason, our attempts to determine the structure of complex 2 failed, the latter compound being immediately transformed into another 5 [8].…”

“…Copper clusters are bound via bridge trithiophosphite molecules, the unusual tridentate Cu coordination by P and two S atoms being realized in crystals [8].…”

“…causing the disproportionation of ligands and their full or partial substitution in metal coordination sphere as well as other transformations. These result in structural changes: from polymeric or cuban-like complexes to dimeric structures as well as in the chemical transformations of ligands [3,4,7,8].…”

“…This flexibility and the presence of several donor atoms in these ligands determine the copper coordination chemistry, which appeared to be diverse and unexpected. The dimeric, tetrameric step-like and cuban-like, as well as the polymeric chain and two-dimensional polymeric structures have been realized in studied complexes [3][4][5][6][7][8].…”