Synthesis, Characterization, and Comparative Theoretical Investigation of Dinitrogen-Bridged Group 6-Gold Heterobimetallic Complexes.

ABSTRACT: We have prepared and characterized a series of unprecedented group 6-group 11, N₂-bridged, heterobimetallic [ML₄(η¹-N₂)(μ-η¹:η¹-N₂)Au(NHC)]⁺ complexes (M = Mo, W, L₂ = diphosphine) by treatment of trans-[ML₄(N₂)₂] with a cationic gold(I) complex [Au(NHC)]⁺. The adducts are very labile in solution and in the solid, especially in the case of molybdenum, and decomposition pathways are likely initiated by electron transfers from the zerovalent group 6 atom to gold. Spectroscopic and structural parameters point to the fact that the gold adducts are very similar to Lewis pairs formed out of strong main-group Lewis acids (LA) and low-valent, end-on

SUBMITTER: Specklin D 

PROVIDER: S-EPMC8058778 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature