Synthesis and characterization of bis- and tris-carbonyl Mn(I) and Re(I) PNP pincer complexes.

ABSTRACT:

Abstract

A series of neutral bis- and cationic tris-carbonyl complexes of the types cis-[M(κ³ P,N,P-PNP)(CO)₂Y] and [M(κ³ P,N,P-PNP)(CO)₃]⁺ was prepared by reacting [M(CO)₅Y] (M = Mn, Re; Y = Cl or Br) with PNP pincer ligands derived from the 2,6-diaminopyridine, 2,6-dihydroxypyridine, and 2,6-lutidine scaffolds. With the most bulky ligand PNP^NH-tBu, the cationic square-pyramidal 16e bis-carbonyl complex [Mn(PNP^NH-tBu)(CO)₂]⁺ was obtained. In contrast, in the case of rhenium, the 18e complex [Re(PNP^NH-tBu)(CO)₃]⁺ was formed. The dissociation of CO was studied by means of DFT calculation revealing in

SUBMITTER: Glatz M 

PROVIDER: S-EPMC6320747 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature