Iridium(III) bis-terpyridine complexes displaying long-lived pH sensitive luminescence
- 1 January 1999
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Chemical Communications
- No. 19,p. 1943-1944
- https://doi.org/10.1039/a906203c
Abstract
A bis-terpyridine complex of iridium(III) incorporating a pendent pyridyl group displays long-lived emission at pH 7 in air-equilibrated aqueous solution, but both the lifetime and intensity are reduced by a factor of >8 upon protonation of the pyridyl nitrogen; structurally similar complexes with pendent phenolic groups are only weakly emissive and their ground-state absorption spectra show a new, low-energy band (λ = 468 nm) upon deprotonation.Keywords
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