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Investigating silver coordination to mixed chalcogen ligands

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Knight2012molecules_17_13307_v3.pdf (589.8Kb)
Date
08/11/2012
Author
Knight, Fergus Ross
Randall, Rebecca Amy Michele
Wakefield, Lucy
Slawin, Alexandra Martha Zoya
Woollins, J Derek
Keywords
Silver(I) complexes
Chalcogen-donor
Coordination networks
Helical chain polymer
Acenaphthene ligands
QD Chemistry
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Abstract
Six silver(I) coordination complexes have been prepared and structurally characterised. Mixed chalcogen-donor acenaphthene ligands L1–L3 [Acenap(EPh)(E'Ph)] (Acenap = acenaphthene-5,6-diyl; E/E' = S, Se, Te) were independently treated with silver(I) salts (AgBF4/AgOTf). In order to keep the number of variables to a minimum, all reactions were carried out using a 1:1 ratio of Ag/L and run in dichloromethane. The nature of the donor atoms, the coordinating ability of the respective counter-anion and the type of solvent used in recrystallisation, all affect the structural architecture of the final silver(I) complex, generating monomeric, silver(I) complexes {[AgBF4(L)2] (1 L = L1; 2 L = L2; 3 L = L3), [AgOTf(L)3] (4 L = L1; 5 L = L3), [AgBF4(L)3] (2a L = L1; 3a L = L3)} and a 1D polymeric chain {[AgOTf(L3)]n 6}. The organic acenaphthene ligands L1-L3 adopt a number of ligation modes (bis-monodentate μ2-η2-bridging, quasi-chelating combining monodentate and η6-E(phenyl)-Ag(I) and classical monodentate coordination) with the central silver atom at the centre of a tetrahedral or trigonal planar coordination geometry in each case. The importance of weak interactions in the formation of metal-organic structures is also highlighted by the number of short non-covalent contacts present within each complex.
Citation
Knight , F R , Randall , R A M , Wakefield , L , Slawin , A M Z & Woollins , J D 2012 , ' Investigating silver coordination to mixed chalcogen ligands ' , Molecules , vol. 17 , no. 11 , pp. 13307-13329 . https://doi.org/10.3390/molecules171113307
Publication
Molecules
Status
Peer reviewed
DOI
https://doi.org/10.3390/molecules171113307
ISSN
1420-3049
Type
Journal article
Rights
© 2012 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
Description
The work in this project was supported by the Engineering and Physical Sciences Research Council (EPSRC).
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/3299

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