Synthesis, spectroscopic characterization and catalytic activity of platinum(II) carbene complexes

被引：15
作者：
Bolbat, Ekaterina [1 ]
Suarez-Alcantara, Karina [2 ]
Canton, Sophie E. [3 ,4 ]
Wendt, Ola F. [1 ]
机构：
[1] Lund Univ, Dept Chem, Ctr Anal & Synth, POB 124, S-22100 Lund, Sweden
[2] Univ Nacl Autonoma Mexico, Unidad Morelia, Inst Invest Mat, Antigua Carretera Patzcuaro 8701, Morelia 58190, Michoacan, Mexico
[3] Deutsch Elecktronen Synchrotron DESY, FS SCS, D-22607 Hamburg, Germany
[4] Max Planck Inst Biophys Chem, Fassberg 11, D-37077 Gottingen, Germany
来源：
INORGANICA CHIMICA ACTA | 2016年 / 445卷
基金：
瑞典研究理事会;
关键词：
NHC carbene complexes; Platinum; EXAFS; XRD; Hydrosilylation; N-HETEROCYCLIC CARBENE; METAL-COMPLEXES; PEPPSI COMPLEXES; COORDINATION CHEMISTRY; COUPLING REACTIONS; CANCER-CELLS; NHC; PRECATALYST; LIGANDS; HYDROSILYLATION;
D O I：
10.1016/j.ica.2016.02.036
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A novel platinum complex with 1,3-bis(2,6-diisopropylphenyl)-1,3-dihydro-2H-imidazol-2-ylidenyl ligand has been synthesized and characterized on the basis of elemental analysis, MS, H-1 and C-13 NMR spectroscopy, X-ray Absorption Spectroscopy and single crystal X-ray diffraction studies. The XRD determination of the complex (monoclinic, C2/c) revealed a structure in which the platinum (II) centre coordinates two chlorides, a carbon atom of the N-heterocyclic carbene (NHC) and is stabilized by coordinating the nitrogen atom of a 3-chloropyridine molecule, forming an over-all square planar geometry. By prolonging the time of the reaction, it was possible to obtain the trans-dichloridobis(3-chloropyridine) platinum(II) complex under the same reaction conditions. The electronic and molecular properties of both complexes were investigated and compared by means of Near Edge X-ray Absorption Fine Structure spectroscopy (NEXAFS), supported by numerical simulations. The platinum carbene complex obtained was tested in a series of C-H activation and hydrosilylation reactions. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：129 / 133
页数：5
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