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Potential antitumor gold drugs: DFT and XANES studies of local atomic and electronic structure

Soldatov, Mikhail A. and Ascone, Isabella and Congiu Castellano, Agostina and Messori, Luigi and Cinellu, Maria Agostina and Balerna, Antonella and Soldatov, Victor V. and Yalovega, Galina E. (2009) Potential antitumor gold drugs: DFT and XANES studies of local atomic and electronic structure. Journal of Physics: Conference Series, Vol. 190 (1), p. 1-4. eISSN 1742-6596. Article.

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DOI: 10.1088/1742-6596/190/1/012210

Abstract

Geometry structure optimization of the potential antitumor agent Au(bipy)(OH)2 was carried out by means of density functional theory simulations. The experimental Au L3-edge X-ray absorption near edge structure (XANES) spectrum of Au(bipy)(OH)2 was obtained. The theoretical Au L3-XANES spectra of the gold(III) complex Au(bipy)(OH)2 were simulated using both the self-consistent real-space full multiple scattering theory within the muffin-tin approximation for the potential shape and the full-potential finite difference method. The comparison of the theoretical spectra with the experimental XANES is discussed. The exact local atomic structure of gold complex Au(bipy)(OH)2 has been defined by two independent ab initio methods.

Item Type:Article
ID Code:4261
Status:Published
Refereed:Yes
Uncontrolled Keywords:Antitumor agents, gold(III), local atomic structure
Subjects:Area 03 - Scienze chimiche > CHIM/03 Chimica generale e inorganica
Divisions:001 Università di Sassari > 01 Dipartimenti > Chimica
Publisher:IOP Publishing
eISSN:1742-6596
Additional Information:Paper presented at the 14th International Conference on X-Ray Absorption Fine Structure (XAFS14), Camerino (Italy), July 26-31, 2009.
Deposited On:23 Jul 2010 16:39

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