Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jorganchem.2004.06.025
Title: Study on carbon - Hydrogen activation of ketones by Gold(III) complexes and the synthesis and characterization of two ketonylgold(III) complexes
Authors: Fan, D.
Meléndez, E.
Ranford, J.D. 
Lee, P.F.
Vittal, J.J. 
Keywords: C-H activation
Gold(III) complex
X-ray crystallography
Issue Date: 22-Sep-2004
Source: Fan, D., Meléndez, E., Ranford, J.D., Lee, P.F., Vittal, J.J. (2004-09-22). Study on carbon - Hydrogen activation of ketones by Gold(III) complexes and the synthesis and characterization of two ketonylgold(III) complexes. Journal of Organometallic Chemistry 689 (19) : 2969-2974. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jorganchem.2004.06.025
Abstract: The acetonylgold(III) compound [Au(ppy)(CH2COCH3) Cl] (1) (ppy = 2-phenylpyridine) was unexpectedly obtained during the crystallization process of Au(III) lactate complex [Au(ppy) (CH3CHOHCOO-)Cl]. This new structure prompted us to further study the role of Au(III) complexes on the carbon-hydrogen activation of ketones. Complex [Au(ppy)(CH2COCH3) NO3] (2) was synthesized by reacting [Au(ppy)(NO3) 2] with acetone while the ketonyl Au(III) complex [Au(apd) Cl2] (3) (Hapd = 2-acetylpyridine) was obtained through carbon-hydrogen bond activation of the acetyl group. The crystal structures of 1 and 2 have common features: a square-planar Au(III) centre coordinated by one five-membered chelate ring, one acetonyl ligand and one anion (chloride or nitrate). Both structures show that carbon-hydrogen activation of acetone by 2-phenylpyridine-Au(III) complexes leads to the formation of acetonyl-Au(III) complexes. The Au-CH 2 bond lengths (2.067(7) Å, 1 and 2.059(5) Å, 2) are similar to each other but longer than the Au-C (phenyl) bond lengths. The two softest ligands (carbanion) are also cis to each other in the thermodynamically most stable isomer. In complex 3, the σ-bonded acetyl group is confirmed by 13C DEPT NMR spectroscopy. © 2004 Published by Elsevier B.V.
Source Title: Journal of Organometallic Chemistry
URI: http://scholarbank.nus.edu.sg/handle/10635/94933
ISSN: 0022328X
DOI: 10.1016/j.jorganchem.2004.06.025
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

18
checked on Feb 14, 2018

WEB OF SCIENCETM
Citations

20
checked on Jan 22, 2018

Page view(s)

34
checked on Feb 12, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.