期刊
INORGANIC CHEMISTRY
卷 45, 期 23, 页码 9410-9415出版社
AMER CHEMICAL SOC
DOI: 10.1021/ic061283k
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资金
- Engineering and Physical Sciences Research Council [GR/S42071/01, GR/T03352/01, GR/T03345/02] Funding Source: researchfish
The synthesis and photophysical study of (C boolean AND N)Pt(II)Q complexes, where C boolean AND N is a bidentate cyclometalating ligand and Q is 8-hydroxyquinoline or quinoline-8-thiol, are presented. The compounds were obtained as a single isomer with N atoms of the C boolean AND N and Q ligands trans-coordinated to the PtII center as shown by X-ray crystallography. These chromophores absorb intensely in the visible region and emit in the deep-red spectral region from a quinolate-centered triplet intraligand charge-transfer excited state. The emission maxima are in the range 675-740 nm, with the quantum yields and lifetimes of up to 0.82% and 5.3 mu s, respectively, in deoxygenated organic solvents at room temperature. These complexes are efficient photosensitizers of singlet oxygen in air-saturated solutions, with yields up to 90%.
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