Issue 16, 2012
From the journal:

Dalton Transactions

Strong π-delocalization and substitution effect on electronic properties of dithienylpyrrole-containing bipyridineligands and corresponding ruthenium complexes†

Sajida Noureen,a   Stefano Caramori,b   Antonio Monari,c   Xavier Assfeld,c   Roberto Argazzi,b   Carlo A. Bignozzi,b   Marc Beleya  and  Philippe C. Gros*a  

* Corresponding authors

a Groupe SOR, SRSMC, Université de Lorraine, CNRS, Faculté des Sciences, Boulevard des Aiguillettes, F-54506 Vandoeuvre-Lès-Nancy, France
E-mail: philippe.gros@srsmc.uhp-nancy.fr
Fax: +33(0)383684785
Tel: +33(0)383684979

b Chemistry Department, University of Ferrara, Via Luigi Borsari 46, 44100 Ferrara, Italy
E-mail: cte@unif.it
Fax: +39.0532.240709
Tel: +39 0532 291163

c Equipe CBT, SRSMC, Université de Lorraine, CNRS, Faculté des Sciences, Boulevard des Aiguillettes, F-54506 Vandoeuvre-Lès-Nancy, France
E-mail: antonio.monari@cbt.uhp-nancy.fr
Fax: +33(0)383684371
Tel: +33(0)383684380

Abstract

The first dithienylpyrrole (DTP)-based bipyridine ligands has been prepared and coordinated with ruthenium to give the corresponding homoleptic complexes. Bipyridine was bound at pyrrole (DTP1) or thiophene (DTP2) ring. A strong bathochromic effect was obtained by switching from pyrrole to thiophene for ligands and complexes. Interestingly the DTP2 series offered a wide absorption window from UV to visible domain with an almost constant absorbance. These effects are due to a larger extent of delocalization as supported by DFT calculations and photophysical measurements.

Graphical abstract: Strong π-delocalization and substitution effect on electronic properties of dithienylpyrrole-containing bipyridine ligands and corresponding ruthenium complexes

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Article information

DOI
https://doi.org/10.1039/C2DT12367C
Article type
Paper
Submitted
07 Dec 2011
Accepted
24 Jan 2012
First published
06 Mar 2012

Dalton Trans., 2012,41, 4833-4844

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Strong π-delocalization and substitution effect on electronic properties of dithienylpyrrole-containing bipyridine ligands and corresponding ruthenium complexes

S. Noureen, S. Caramori, A. Monari, X. Assfeld, R. Argazzi, C. A. Bignozzi, M. Beley and P. C. Gros, Dalton Trans., 2012, 41, 4833 DOI: 10.1039/C2DT12367C

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