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Department of Chemistry

Science A 229
University of Calgary
2500 University Dr NW
Calgary, AB T2N 1N4 Canada
T. 403.220.5341
F. 403.289.9488

Dr. Carlos Romero-Nieto, Heidelberg University

Date & Time:
June 5, 2017 | 3:00 pm
SB 142

Title: Novel phosphaphenalene derivatives: en route towards a new generation of multifunctional organophosphorus materials

Main group-based heterocycles enable materials properties that cannot be accessed from any all-carbon architecture. Particularly, phosphorus heterocycles stand out because of their special geometry and electronic characteristics.1 The unique non-hybridization of phosphorus centers originates a myriad of fascinating properties; i.e. strong photoluminescence, electron-accepting capacity,1 and a large variety of coordination reactions,2 just to name a few. Deepening into the phosphorus heterocycles chemistry requires, nevertheless, the development of further synthetic protocols. The latter has recently attracted a great deal of research efforts;1 the future of phosphorus-based heterocycles will be certainly governed by the availability of straightforward procedures to access groundbreaking architectures.

In this communication, I will present a new non-catalyzed synthetic protocol to obtain novel, fused phosphorus heterocycles; i.e. phosphaphenalenes (Fig. 1).3 Moreover, I will report a detailed investigation on their photo-electrochemical properties. In particular, I will shed light into the multifunctionality of these novel phosphorus heterocycles; i.e. their capacity to generate light-induced electric current and to provide electroluminescence. In brief, I will describe relevant aspects for the design of a new generation of improved organophosphorus materials.

[1] T. Baumgartner, Acc. Chem. Res., 2014, 47, 1613.
[2] L. Kollár, Keglevich, G. Chem. Rev. 2010, 110, 4257.
[3] C. Romero-Nieto, A. López-Andarias, C. Egler-Lucas, F. Gebert, J.-P. Neus, O. Pilgram, Angew. Chem. Int. Ed. 2015, 54, 15872.

Department Contact: Dr. Todd Sutherland (403-220-7559;

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