Inorganic excimer. Spectroscopy, photoredox properties and excimeric emission of dicyano(4,4′-di-tert-butyl-2,2′-bipyridine)platinum(II)
- 1 January 1991
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 4,p. 1077-1080
- https://doi.org/10.1039/dt9910001077
Abstract
The complex [Pt(dtbipy)(CN)2](dtbipy = 4,4′-di-tert-butyl-2,2′-bipyridine) has a long-lived intra-ligand (ππ*)3 excited state in fluid solutions (room-temperature lifetime at infinite dilution 3 µs in 1,2-dichloroethane). Excimer emission (maximum 565 nm) and photoinduced cligomerisation have been found for this platinum complex. The measured rate constant for the process [Pt(dtbipy)(CN)2]*+[Pt(dtbipy)(CN)2]→[{Pt(dtbipy)(CN)2}2]* is 9.0 × 108 dm3 mol–1 s–1 in 1,2-dichloroethane at room temperature. The photophysics and photoredox properties of the excited monomer and dimer are discussed.Keywords
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