Browse DORAS
Browse Theses
Search
Latest Additions
Creative Commons License
Except where otherwise noted, content on this site is licensed for use under a:

Multifunctional ionic liquids and their use in the formation of co-ordinated structures

Kavanagh, Andrew and Byrne, Robert and Diamond, Dermot and Radu, Aleksandar (2009) Multifunctional ionic liquids and their use in the formation of co-ordinated structures. In: Coil-3 2009 - 3rd International Congress on Ionic Liquids, 31 May - 4 June 2009, Cairns, Australia.

Full text available as:

[img]
Preview
PDF (Poster) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
1105Kb
[img]
Preview
PDF (Abstract) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
28Kb

Abstract

We report the use of phosphonium based ionic liquids (ILs) as multifunctional systems for the formation of transition metal ion coordinated polymers. The ILs studied included a tetraalkylated phosphonium cation; [PCnH2n+1]+ and the anions dicyanamide [DCA]- , bis(trifluoromethanesulfonyl)amide [NTf2]-, tosylate [TOS]-, and dodecylbenzenesulfonate [DBSA]-. [DCA]- and other pseudohalide anions such as tricyanomethanide [TCM]- have been shown to co-ordinate to heavy metal centres1. A survey of the literature shows many reports in which [DCA]- (as an alkali salt) has been shown to co-ordinate to these transition metals in various 2-D and 3-D topologies and most notably in structures exhibiting magnetic properties2. We have studied the IL [P6,6,6,14][DCA] as a self-indicating, simultaneous, multianalyte recognition system for heavy metal ions such as Cu2+ and Co2+. When incorporated into a polymer membrane, this system maintains all these attractive features with the added bonus of the IL now being self-plasticizing. A system like this can be viewed as a building block for future chemical sensing platforms; where the system itself is responsive toward an analyte, thereby eliminating the need for a reactive chromophore. Other anions mentioned are considered to be “soft” or non-coordinating. We have used heat to change the chemistry of these anions, resulting in ion coordination to previously solvating anions. These solvating anions have in common a sulfoxide moiety that can co-ordinate to a given heavy metal.3 The formation of these structures has been characterized via UV/Vis, Infrared and Raman Spectroscopy.

Item Type:Conference or Workshop Item (Poster)
Event Type:Conference
Refereed:No
Subjects:Physical Sciences > Chemistry
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Science and Health > School of Chemical Sciences
Research Initiatives and Centres > CLARITY: The Centre for Sensor Web Technologies
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:Enterprise Ireland, EI 07/RFP/MASF812, Science Foundation Ireland, SFI 07/CE/I1147
ID Code:4632
Deposited On:24 Jun 2009 10:43 by Andrew Kavanagh. Last Modified 29 Apr 2010 14:15

Download statistics

Archive Staff Only: edit this record