第 10 族金属的二氯代锡烯配合物，由桥连 2-吡啶基二苯基膦配体稳定的独特成键模式。

Dichlorostannylene complexes of group 10 metals, a unique bonding mode stabilized by bridging 2-pyridyldiphenylphosphine ligands.

机构信息

Utrecht University, Faculty of Science, Debye Institute for Nanomaterials Science, Chemical Biology & Organic Chemistry, Padualaan 8, 3584 CH, Utrecht, The Netherlands.

出版信息

Dalton Trans. 2010 Mar 7;39(9):2423-7. doi: 10.1039/b924783c. Epub 2010 Jan 20.

DOI:10.1039/b924783c

PMID:20162217

Abstract

The reaction of tin dichloride with catalytically-relevant group 10 metal precursors [M(Cl)(X)(2-PyPPh(2))(2)] (M = Ni, Pd, Pt; 2-PyPPh(2) = 2-pyridyldiphenylphosphine; X = Cl, Me) provides easy access to unprecedented cationic dichlorostannylene complexes M(X)(2-PyPPh(2))(2)(SnCl(2)) where the M-Sn bond is bridged by two head-to-head coordinated 2-PyPPh(2) ligands. The formation of such species instead of the classical neutral trichlorostannyl derivatives [M(X)(SnCl(3))(2-PyPPh(2))(2)] offers a new insight on the specific effect of the SnCl(2) cocatalyst in group 10 metal catalyzed transformations.

摘要

二氯化锡与催化相关的第 10 族金属前体[M(Cl)(X)(2-PyPPh(2))(2)]（M=Ni、Pd、Pt；2-PyPPh(2)=2-吡啶基二苯基膦；X=Cl、Me）反应，可轻易得到前所未有的阳离子二氯代锡烯配合物M(X)(2-PyPPh(2))(2)(SnCl(2))，其中 M-Sn 键由两个头对头配位的 2-PyPPh(2)配体桥接。这种物种的形成而不是经典的中性三氯代锡基衍生物[M(X)(SnCl(3))(2-PyPPh(2))(2)]，为 SnCl(2)助催化剂在第 10 族金属催化转化中的特殊作用提供了新的见解。