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Soluble phosphorescent iridium(iii) complexes from cinchonine-derived ligands
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- Title
- Soluble phosphorescent iridium(iii) complexes from cinchonine-derived ligands
- Author/Creator
-
Zhang, W H |
Zhang, X H |
Tan, A L |
Anna Yong, M |
Young, David James |
Andy Hor, T S
- Description
- Cinchonine-derived complexes Ir(L2) 2(acac) (3), Ir(L2) 2(dbm) (4), [Ir-(L1)2(bipy)][PF6] (5), [Ir(L1)2(phen)][PF6] (6), [Ir(L1)2(dppe)][PF6] (7), [Ir-(L2) 2(bipy)][PF6] (8), [Ir(L2) 2(phen)][PF6] (9), and [Ir(L2) 2(dppe)][PF6] (10) (L1 =2-phenyl-9-O-benzyl-10,11-dihydrocinchonine-N,C; L2 = 2-(2,4-difluorophenyl)-9- O-benzyl-10,11-dihydrocinchonine-N,C; acac = acetylacetonate; dbm = dibenzoylmethane; bipy =2,2-bipyridine; phen = 1,10-phenanthroline; dppe = (Z)-1,2-bis(diphenylphosphino)ethene) are highly soluble in common organic solvents and phosphoresce with emission wavelengths from orange to green (583529 nm) and internal quantum efficiencies from 4 to 24%. The emission is blue-shifted for the neutral auxiliary ligands and/or by incorporation of fluorine into the alkaloid-based chromophore. An unprecedented regiospecific monohydrodefluorination of L2, giving 2-(4-fluorophenyl)-9-O-benzyl-10,11- dihydrocinchonine (L2), occurred during the synthesis of 3 and 4. © 2012 American Chemical Society.
- Relation
- Organometallics / Vol. 31, No. 2, pp.553-559
- Relation
- http://dx.doi.org/10.1021/om200759d
- Year
- 2012
- Publisher
- American Chemical Society
- Subject
-
FoR 0302 (Inorganic Chemistry) |
FoR 0305 (Organic Chemistry) |
FoR 0399 (Other Chemical Sciences) |
1 ,10-phenanthroline |
2 ,2-Bipyridine |
acetylacetonates |
auxiliary ligands |
blue-shifted |
dibenzoylmethane |
emission wavelength |
internal quantum efficiency |
iridium complex |
regiospecific
- Resource Type
- Journal Article
- Identifier
- ISSN: 0276-7333
- Reviewed
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