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Luminescence studies of rhenium(I) complexes under high pressure

Authors
Journal
Chemical Physics Letters
0009-2614
Publisher
Elsevier
Publication Date
Volume
192
Identifiers
DOI: 10.1016/0009-2614(92)85469-q

Abstract

Abstract The effect of pressure on the luminescence energy and efficiency of Re(I) complexes has been studied in four media: in quaternized poly(4-vinylpyridine) (QPVP), dissolved in poly(4-vinylpyridine) (PVP), dissolved in poly(acrylic acid) (PAA), and as the crystalline solid. The peak shifts with pressure correlated excellently with the intensity changes which provides a confirmation of the energy gap law. This has previously been observed for bonding—antibonding excitations in aromatic compounds and metal chelates. However in this case a metal to ligand charge transfer (MLCT) excitation is involved and this is the first clear demonstration of the energy gap law for such excitation under high pressure.

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