Computational and carbon-13 NMR studies of Pt-C bonds in P-C-P pincer complexes.
A (13)C{(1)H} NMR based investigation was conducted to examine the electronic properties of C(aryl)-M bonds and their trans influence in P-C(aryl)-P pincer complexes. A series of structurally related platinum pincer complexes were rationally designed and their corresponding (13)C-(195)Pt coupling constants were systematically examined. By methodical substitution of the ligand trans to the organometallic C(aryl)-Pt bond, this study revealed the significant influence of the ligands on the nature of the C(aryl)-M bonds. The single crystal X-ray analysis of the complexes and computational studies further confirmed the observations that the C-M bond exhibits significant π-character.
Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371. pakhing@ntu.edu.sg.
Yu-Xiang
YX
Jia
Xiang-Yuan
XY
Yang
Wee Shan
WS
Tay
Yongxin
Y
Li
Sumod A
SA
Pullarkat
Kai
K
Xu
Hajime
H
Hirao
Pak-Hing
PH
Leung