Square planar Cu(i) stabilized by a pyridinediimine ligand†
Abstract
A set of distorted square planar Cu(I) complexes were synthesized and characterized utilizing the sterically encumbering pyridinediimine ligand, iPrPDI (where iPrPDI = 2,6-(2,6-iPr2C6H3NCMe)2C5H3N). The oxidation state of the Cu center(s) were elucidated to be Cu(I) with a neutral PDI ligand system based on structural, spectroscopic, and computational data.