Optical Properties of [all]-S,S-Dioxide Oligothiophenes

María M. Oliva, ^1,*Sandra R. González,¹Juan Casado,¹ Juan T. López Navarrete,¹J. S. Seixas de Melo,²Shlomo Rozen³

¹Department of Physical Chemistry, University of Málaga, Málaga 29071, Spain

²Department of Chemistry, University of Coimbra, Coimbra 3004-535, Portugal

³School of Chemistry, Tel-Aviv University, Tel-Aviv 69978, Israel

 

Received 11 May 2009; accepted 18 May 2009

 

Abstract

A comprehensive photophysical and spectroscopic Raman study guided by Density Functional Theory and Hartree-Fock calculations has been done in a series of fully oxidized oligothiophenes with variable chain length, up to four rings. A comparison with the properties of oligoenes and oligothiophenes is proposed.

Keywords: oligothiophenes, p-conjugation, photophysics, Raman spectroscopy, theoretical calculations.

 

Full text only in PDF format

Texto disponível em PDF

 

References

1. D. Fichou, Handbook of Oligo and Polythiophenes, Ed. Wiley-VCH: New York, 1999.

2. E. Amir, S. Rozen, Angew. Chem. Int. Ed. 44 (2005) 7374.        [ Links ]

3. a) R.R. Chance, H. Schaffer, K. Knoll, R. Schrock, R. Silbey, Synth. Met. 49-50 (1992) 271.

b) K. Knoll, R. Schrock, J. Am. Chem. Soc. 111 (1989) 7989.

4. M.J. Frisch et al., Gaussian 03, Revision B.05, Gaussian, Inc.: Pittsburgh, PA, 2003.

5. a) J. Casado, H.E. Katz, V. Hernández, J.T. López Navarrete, J. Phys. Chem. B 106 (2002) 2488.

b) V. Hernández, J. Casado, F.J. Ramírez, G. Zotti, S. Hotta, J.T. López Navarrete, J. Chem. Phys. 104 (1996) 9271.

^*Corresponding author. E-mail address : mmorenoo@uma.es