Synthesis and Characterization of Tantalum-Based Early-Late Heterobimetallic Complexes Supported by 2-(diphenylphosphino)pyrrolide Ligands.

ABSTRACT: The synthesis of the metalloligand Ta(κ²-NP)₃Cl₂ (NP = 2-diphenylphosphinopyrrolide) and its coordination chemistry with group 9 and 10 metals is reported. Treatment of Ta(κ²-NP)₃Cl₂ with group 9 and 10 metals resulted in clean formation of the heterobimetallic complexes Cl₂Ta(μ₂-NP)₃M (M = Ni (2), Pd (3)) or Cl₂Ta(μ₂-NP)₃MCl (M = Rh (4), Ir (5)). Each pair of complexes is isostructural and contains three phosphinopyrrolide ligands that bridge the metal centers. The d¹⁰ or d⁸ complexes are all diamagnetic and X-ray crystallographic analysis reveals similarly short metal-metal distances, ranging from 2.2979(5) Å

SUBMITTER: Dunn PL 

PROVIDER: S-EPMC7156031 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature