Neutral Formazan Ligands Bound to the fac-(CO)₃Re(I) Fragment: Structural, Spectroscopic, and Computational Studies.

ABSTRACT: Metal complexes with ligands that coordinate via the nitrogen atom of azo (N═N) or imino (C═N) groups are of interest due to their π-acceptor properties and redox-active nature, which leads to interesting (opto)electronic properties and reactivity. Here, we describe the synthesis and characterization of rhenium(I) tricarbonyl complexes with neutral N,N-bidentate formazans, which possess both N═N and C═N fragments within the ligand backbone (Ar¹-NH-N═C(R³)-N═N-Ar⁵). The compounds were synthesized by reacting equimolar amounts of [ReBr(CO)₅] and the corresponding neutral formazan. X-ray crystallographic and spectroscopic (IR, NMR) characterization confirmed the generation of formazan-type species with the structure fac-[ReBr(CO

SUBMITTER: Capulin Flores L 

PROVIDER: S-EPMC9438031 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature