The electrochemical properties of a-ethynyl complexes of chromium subgroup metals were studied by cyclic voltammetry and preparative-scale electrolysis. The redox cycle of CsHs(CO)3CrC~CPh was shown to give the bis-carbyne complex (qS-CsHs)(CO)2C~C--C(Ph)=C(Ph)--C,~Cr(CO)2(q5-CsHs) formed via the reduetive C1~--CI3 coupling of ethynyl moieties. The influence of the nature of the metal atom and the ligand environment on the course of this reaction was considered.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.