Perfluorophenylene-bridged bisphospholes: synthesis and unexpected photophysical properties

Yi Ren; Andreas Orthaber; Rudolf Pietschnig; Thomas Baumgartner

doi:10.1039/C3DT33058C

Perfluorophenylene-bridged bisphospholes: synthesis and unexpected photophysical properties

Yi Ren,^a Andreas Orthaber,^b Rudolf Pietschnig*^b^c and Thomas Baumgartner*^a

* Corresponding authors

^a Department of Chemistry and Centre for Advanced Solar Materials, University of Calgary, 2500 University Drive NW, Calgary, Canada
E-mail: Thomas.baumgartner@ucalgary.ca

^b Institute of Chemistry, University of Graz, Schubertstr. 1, 8010 Graz, Austria

^c Universität Kassel, Institut für Chemie and Center for Interdisciplinary Nanostructure Science and Technology, Heinrich-Plett-Strasse 40, D-34132 Kassel, Germany
E-mail: pietschnig@uni-kassel.de

Abstract

Two new perfluorophenylene-bridged bis(dithieno[3,2-b:2′,3′-d]phosphole)s have been synthesized and their photophysical and redox properties have been investigated via static/dynamic fluorescence spectroscopies, cyclic voltammetry (CV), and DFT calculations. The photophysical studies revealed an interesting intramolecular charge transfer (ICT) occurring between the two identical dithienophosphole moieties in polar solvents that was supported by the theoretical studies. The CV experiments show that the bisphosphole species exhibits a smaller charge transfer (CT) energy gap than the corresponding single dithienophosphole species.

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Publication details

The article was received on 20 Dec 2012, accepted on 23 Jan 2013 and first published on 13 Feb 2013

Article type: Paper

DOI: 10.1039/C3DT33058C

Citation: Dalton Trans., 2013,42, 5314-5321

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Perfluorophenylene-bridged bisphospholes: synthesis and unexpected photophysical properties

Y. Ren, A. Orthaber, R. Pietschnig and T. Baumgartner, Dalton Trans., 2013, 42, 5314
DOI: 10.1039/C3DT33058C
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Perfluorophenylene-bridged bisphospholes: synthesis and unexpected photophysical properties

Abstract

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Perfluorophenylene-bridged bisphospholes: synthesis and unexpected photophysical properties

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