The Library
Structure of [Ru(bpy)(n)(AP)((6-2n))](2+) homogeneous complexes: DFT calculation vs. EXAFS
Tools
Salassa, Luca, Gianolio, Diego, Garino, Claudio, Salassa, Giovanni, Borfecchia, Elisa, Ruiu, Tiziana, Nervi, Carlo, Gobetto, Roberto, Bizzarri, Ranieri, Sadler, P. J. and Lamberti, Carlo (2009) Structure of [Ru(bpy)(n)(AP)((6-2n))](2+) homogeneous complexes: DFT calculation vs. EXAFS. In: 14th International Conference on X-Ray Absorption Fine Structure (XAFS14), Camerino, Italy, July 26-31, 2009. Published in: Journal of Physics: Conference Series, Vol.190 Article no. 012141. ISBN *****************. doi:10.1088/1742-6596/190/1/012141 ISSN 1742-6596.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://dx.doi.org/10.1088/1742-6596/190/1/012141
Abstract
We used EXAFS and DFT calculations to investigate the structure of [Ru(bpy)(AP)(4)](2+) and [Ru(bpy)(2)(AP)(2)](2+) (bpy = 2-2'-bipyridyne, AP = 4-aminopyridyne) in aqueous solution (10 mM). These derivatives are of potential interest since, upon direct irradiation, they can form reactive aqua-species able to bind to macromolecules. An attempt has been made to determine with EXAFS the structure of the photodissociation product of the [Ru(bpy)(2)(AP)(2)](2+) complex, where a water molecule fill the coordination vacancy left by an AP ligand resulting in [Ru(bpy)(2)(AP)(H2O)](2+). Unfortunately, co-presence in the experimental sample of both original and photodissociated complexes, causes the failure of the analysis. This failure was due to the structural complexity of both systems and to the similarity in their EXAFS signals. This work underlines the potentialities and the limits of EXAFS spectroscopy when dealing with highly diluted samples where the local environment of the adsorbing atom is characterized by structured ligands: the local environment of Ru is correctly reproduced when dealing with homogeneous samples, while the co-presence of two or more different species makes the data analysis highly critical.
Item Type: | Conference Item (Paper) | ||||
---|---|---|---|---|---|
Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||
Series Name: | Journal of Physics Conference Series | ||||
Journal or Publication Title: | Journal of Physics: Conference Series | ||||
Publisher: | Institute of Physics Publishing Ltd. | ||||
ISBN: | ***************** | ||||
ISSN: | 1742-6596 | ||||
Editor: | DiCicco, A and Filipponi, A | ||||
Official Date: | 2009 | ||||
Dates: |
|
||||
Volume: | Vol.190 | ||||
Number of Pages: | 8 | ||||
Page Range: | Article no. 012141 | ||||
DOI: | 10.1088/1742-6596/190/1/012141 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Conference Paper Type: | Paper | ||||
Title of Event: | 14th International Conference on X-Ray Absorption Fine Structure (XAFS14) | ||||
Type of Event: | Conference | ||||
Location of Event: | Camerino, Italy | ||||
Date(s) of Event: | July 26-31, 2009 |
Data sourced from Thomson Reuters' Web of Knowledge
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |