Complexes of 2,5-Bis(α-pyridyl)pyrrolate with Pd(II) and Pt(II): A Monoanionic Iso-π-Electron Ligand Analog of Terpyridine
作者:Gregory H. Imler、Zhi Lu、Kurt A. Kistler、Patrick J. Carroll、Bradford B. Wayland、Michael J. Zdilla
DOI:10.1021/ic300435t
日期:2012.10.1
Palladium and platinum metal complexes of 2,5-bis(alpha-pyridyl)-pyrrolate (PDP) are reported and characterized by spectroscopic methods, single-crystal X-ray diffraction, and elemental analysis. The single-crystal X-ray structures of these complexes exhibit structural features indicative of significant pi-backbonding. To illustrate the effect, bond lengths are statistically compared to unmetalated PDP and to a previously reported Zn(II) complex that exhibits no backbonding. Density functional theory calculations are used to aid understanding of the electronic structural basis of the observed phenomena.