Synthesis of Catena-bis(μ-bromo)-(<i>O</i>-methyl-<i>N</i>-phenylthiocarbamate)-dicopper(I) and Its Reactivity towards PAr₃ (Ar = Ph, <i>p</i>-Tol)

Abstract

In order to investigate the coordination chemistry of O-alkyl N-aryl thiocarbamate ligands toward coinage metals, CuBr was reacted with one equivalent of MeOC(=S)N(H)Ph L in MeCN solution to afford the 1D-polymeric title compound [{Cu(μ2-Br)2Cu}{μ2-MeOC(=S)N(H)Ph}2]n CP1. Compound 1 was characterized by IR spectroscopy and an elemental analysis. The formation of a polymeric 1D ribbon built upon μ2-bridging bromido and thione ligands via the C=S bond was ascertained by a single-crystal X-ray diffraction study performed at 100 K. In the presence of PAr3 (Ar = Ph, p-Tol), the polymer chain was broken to yield the mononuclear complexes [(Ar3P)2Cu{MeOC(=S)N(H)Ph}Br] C1 and C2.

Keywords

• copper bromide
• thiocarbamate
• thione
• crystal structure
• hydrogen bonding
• aryl phosphine