Convenient Synthesis and Purification of [Bu4N]2[Ru(4-carboxy-4-carboxylate-2,2′-bipyridine)2(NCS)2]: a Landmark DSC Dye
Tristan Rawling A , Florian Buchholz A and Andrew M. McDonagh A BA Institute of Nanoscale Technology, University of Technology Sydney, Sydney NSW 2007, Australia.
B Corresponding author. Email: andrew.mcdonagh@uts.edu.au
Australian Journal of Chemistry 61(6) 405-408 https://doi.org/10.1071/CH08037
Submitted: 29 January 2008 Accepted: 6 May 2008 Published: 19 June 2008
Abstract
We present here a convenient synthesis of the landmark dye-sensitized solar cell dye [Bu4N]2[Ru(4-carboxy-4-carboxylate-2,2′-bipyridine)2(NCS)2] (N719). Key to this synthetic procedure is the protection of the carboxyl functionalities with iso-butyl ester groups. This strategy allows the use of silica chromatography to remove the less efficient S-bound isomers and significantly reduces the time and difficulty of the synthesis.
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