Synthesis and Crystal Structure of the Mononuclear Nickel Complex [Me₂CHN(PPh₂)₂]Ni(SCH₂Ph)₂

Abstract

The mononuclear nickel complex [Me₂CHN(PPh₂)₂]Ni(SCH₂Ph)₂ has been synthesized by the reaction of [Me₂CHN(PPh₂)₂]NiCl₂ with PhCH₂SH and Et₃N in CH₂Cl₂ in 77% yield. The title complex was structurally characterized by ¹H NMR, ³¹P{¹H} NMR spectroscopy as well as X-ray crystallography. The X-ray diffraction analysis reveals that the molecular structure consists of a central nickel atom coordinated by two phosphorus atoms of the bis(diphenylphosphanyl)amine and two sulfur atoms of benzylthiolate. There are no classical hydrogen bonds but van der Waals’ interactions exist to stabilize the solid state in the crystal packing.

Keywords:

• Crystal structure
• diphosphine ligand
• mononuclear nickel; synthesis

Acknowledgments

We are grateful to the National Natural Science Foundation of China (Grant No. 21202115), The Research Fund for the Doctoral Program of Higher Education (Grant No. 20100032120070), and Tianjin Research Program of Application Foundation and Advanced Technology (Grant No. 13JCQNJC06100). The authors gratefully acknowledge the support of K. C. Wong Education Foundation.