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Updated: Apr 6, 2026

Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts
Published on: August 7, 2018
Thermochromic and solvatochromic properties of Lindqvist polyoxometalates
S Herrmann1, J T Margraf, T Clark
1Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany. carsten.streb@uni-ulm.de.
Abstract:
The thermochromic and solvatochromic properties of Lindqvist metal oxide clusters [V(x)M(6-x)O19](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 (51)V-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.
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