期刊
ORGANOMETALLICS
卷 31, 期 20, 页码 7074-7084出版社
AMER CHEMICAL SOC
DOI: 10.1021/om300526e
关键词
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资金
- Hong Kong University Grants Committee Area of Excellence Scheme [AoE/P-03/08]
- City University of Hong Kong [7008183]
- Special Equipment Grant from the University Grants Committee of Hong Kong [SEG_CityU02]
- City University of Hong Kong
A series of luminescent rhenium(I) phenanthroline complexes containing benzoxazol-2-ylidene ligands with the general formula (Re(CO)(3)(phen)[CN(X)C6H4-2-P]}(+) and cis,trans-(Re(CO)(2)(phen)(L)[CN(H)C6H4-2-O]}(+) (X = H, methyl; phen = 1,10-phenanthroline; L = PPh3, PPh2Me, P(OEt)(3)) have been synthesized and characterized. The X-ray crystal structures of most of the carbene complexes and some of their synthetic precursors have also been determined. A new synthetic methodology for the preparation of dicarbonyl rhenium diimine synthetic precursors with a labile acetonitrile ligand, [Re(CO)(2)(phen)(PR3)(MeCN)(+), was developed. Photophysical study shows that these carbene complexes display a green to red (MLLCT)-M-3 [d pi(Re) -> pi*(N-N)] phosphorescence at room temperature. The N-deprotonations of the benzoxazol-2-ylidene ligand in these complexes were investigated.
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