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Issue 71, 2015
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Thermochromic and solvatochromic properties of Lindqvist polyoxometalates

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Abstract

The thermochromic and solvatochromic properties of Lindqvist metal oxide clusters [VxM6−xO19]n (x = 0, 1, 2, M = Mo, W) are reported. The cluster anions show pronounced changes of their electronic structure depending on their chemical environment (e.g. solvent polarity, temperature). These are rationalized using experimental and theoretical methods. A combined density functional theory and 51V-NMR study suggests that temperature-dependent changes in the structural dynamics of the metal oxide framework are the underlying cause for the observed thermochromism. The results might open new avenues for the design of molecular optical sensors.

Graphical abstract: Thermochromic and solvatochromic properties of Lindqvist polyoxometalates

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Supplementary files

Article information


Submitted
10 Jul 2015
Accepted
23 Jul 2015
First published
24 Jul 2015

Chem. Commun., 2015,51, 13702-13705
Article type
Communication
Author version available

Thermochromic and solvatochromic properties of Lindqvist polyoxometalates

S. Herrmann, J. T. Margraf, T. Clark and C. Streb, Chem. Commun., 2015, 51, 13702
DOI: 10.1039/C5CC05730B

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