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Issue 44, 2011
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Syntheses and characterizations of thiolato-functionalized N-heterocyclic carbene Pd(ii) complexes with normal and mesoionic binding modes

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Abstract

The thiolato-bridged dimeric Pd(II) NHC complex 1 has been synthesized from the reaction of thioester-functionalized imidazolium salt B and Pd(OAc)2. The isolation of its interesting constitutional isomer 2 bearing both classical C(2)-bound and mesoionic C(4)-bound ligands coordinating to two different metal centers in the same complex allowed for a direct comparison of these isomeric carbenes. Reactivity studies of 1 with NaSCH(CH3)2 and NaBF4 afforded the tetranuclear compound 3 with a [Pd4S4] macrocycle. All complexes have been fully characterized by multinuclei NMR spectroscopies, ESI mass spectrometry and X-ray diffraction analysis.

Graphical abstract: Syntheses and characterizations of thiolato-functionalized N-heterocyclic carbene Pd(ii) complexes with normal and mesoionic binding modes

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Supplementary files

Article information


Submitted
29 Apr 2011
Accepted
13 Jun 2011
First published
11 Aug 2011

Dalton Trans., 2011,40, 11698-11703
Article type
Paper

Syntheses and characterizations of thiolato-functionalized N-heterocyclic carbene Pd(II) complexes with normal and mesoionic binding modes

D. Yuan and H. V. Huynh, Dalton Trans., 2011, 40, 11698
DOI: 10.1039/C1DT10789E

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