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

Bolbat, Ekaterina LU ; Suarez-Alcantara, Karina LU ; Canton, Sophie E. LU and Wendt, Ola F. LU (2016) In Inorganica Chimica Acta 445. p.129-133
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, 1H and 13C 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)... (More)

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, 1H and 13C 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.

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Contribution to journal
publication status
published
subject
keywords
EXAFS, Hydrosilylation, NHC carbene complexes, Platinum, XRD
in
Inorganica Chimica Acta
volume
445
pages
5 pages
publisher
Elsevier
external identifiers
  • Scopus:84959559131
  • WOS:000372747600018
ISSN
0020-1693
DOI
10.1016/j.ica.2016.02.036
language
English
LU publication?
yes
id
12589924-2dcd-4a40-9130-1f13426edb4b
date added to LUP
2016-05-10 14:30:12
date last changed
2017-01-01 08:25:46
@article{12589924-2dcd-4a40-9130-1f13426edb4b,
  abstract     = {<p>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, <sup>1</sup>H and <sup>13</sup>C 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.</p>},
  author       = {Bolbat, Ekaterina and Suarez-Alcantara, Karina and Canton, Sophie E. and Wendt, Ola F.},
  issn         = {0020-1693},
  keyword      = {EXAFS,Hydrosilylation,NHC carbene complexes,Platinum,XRD},
  language     = {eng},
  month        = {04},
  pages        = {129--133},
  publisher    = {Elsevier},
  series       = {Inorganica Chimica Acta},
  title        = {Synthesis, spectroscopic characterization and catalytic activity of platinum(II) carbene complexes},
  url          = {http://dx.doi.org/10.1016/j.ica.2016.02.036},
  volume       = {445},
  year         = {2016},
}