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Journal Article

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

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Canton,  S. E.
Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for Biophysical Chemistry, Max Planck Society;

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2266460.pdf
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2266460_Suppl.zip
(Supplementary material), 306KB

Citation

Bolbat, E., Suarez-Alcantara, K., Canton, S. E., & Wendt, O. F. (2016). Synthesis, spectroscopic characterization and catalytic activity of platinum(II) carbene complexes. Inorganica Chimica Acta, 445, 129-133. doi:10.1016/j.ica.2016.02.036.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002A-3249-C
Abstract
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.