Modulation of the ligand-based fluorescence of 3d metal complexes upon spin state change

Charles Lochenie; Kristina G. Wagner; Matthias Karg; Birgit Weber

doi:10.1039/C5TC00837A

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Modulation of the ligand-based fluorescence of 3d metal complexes upon spin state change†‡

Charles Lochenie,^a Kristina G. Wagner,^b Matthias Karg*^b and Birgit Weber*^a

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* Corresponding authors

^a Inorganic Chemistry II, Universität Bayreuth, Universitätsstrasse 30, NW I, 95440 Bayreuth, Germany
E-mail: weber@uni-bayreuth.de

^b Physical Chemistry I, Universität Bayreuth, Universitätsstrasse 30, NW I, 95440 Bayreuth, Germany
E-mail: matthias.karg@uni-bayreuth.de

Abstract

Two new Schiff base-like ligands bearing a heteroaromatic fluorophore were synthesised and converted into the corresponding Ni(II), Cu(II) and Zn(II) square planar complexes. The Ni(II) complexes were studied with regard to a coordination change-induced spin state change upon addition of pyridine in solution. An inverse correlation between the fluorescence properties and the spin state of the metal centre was observed, and investigated with steady state fluorescence and time-resolved spectroscopy.

This article is part of the themed collection: Spin State Switches in Molecular Materials Chemistry

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DOI: https://doi.org/10.1039/C5TC00837A
Article type: Paper
Submitted: 25 Mar 2015
Accepted: 29 May 2015
First published: 01 Jun 2015
This article is Open Access

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J. Mater. Chem. C, 2015,3, 7925-7935

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Modulation of the ligand-based fluorescence of 3d metal complexes upon spin state change

C. Lochenie, K. G. Wagner, M. Karg and B. Weber, J. Mater. Chem. C, 2015, 3, 7925 DOI: 10.1039/C5TC00837A

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Journal of Materials Chemistry C

Modulation of the ligand-based fluorescence of 3d metal complexes upon spin state change†‡

Abstract

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Modulation of the ligand-based fluorescence of 3d metal complexes upon spin state change

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