Infrared rigidochromism: a new effect in the IR spectra of the excited states of coordination compounds
- 1 January 1996
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Chemical Communications
- No. 13,p. 1587-1588
- https://doi.org/10.1039/cc9960001587
Abstract
The magnitude of the shift in the ν(CO) IR spectrum of the MLCT excited state of [Re(CO)3Cl(bipy)](bipy = 2,2′-bipyridyl) in PrCN–EtCN solution, compared with the ground-state spectrum, decreases on cooling from fluid to glass; this ‘infrared rigidochromic’ effect is explained by the change in character of the MLCT state on glass formation.Keywords
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