Journal
INORGANIC CHEMISTRY
Volume 52, Issue 9, Pages 4774-4776Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ic400410k
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Funding
- CHLA Radiology Endowment Fund
- Sanofi
- Doheny Eye Institute
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We have prepared 2,17-bis(chlorosulfonyl)-5,10,15-tris(pentafluorophenyl)corrole (1), 2,17-bis(chlorosulfonyl)-5,10,15-tris(pentafluorophenyl)-corrolatoaluminum(III) (1-Al), and 2,17-bis(chlorosulfonyl)-5,10,15-tris(pentafluorophenyl)-corrolatogallium(III) (1-Ga). The metal complexes 1-Al and 1-Ga were isolated and characterized by electronic absorption and NMR spectroscopies, as well as by mass spectrometry. Relative emission quantum yields for 1, 1-Al, and 1-Ga, determined in toluene, are 0.094, 0.127, and 0.099, respectively. Reactions between 1, 1-Al, and 1-Ga and TiO2 nanoparticles (NPs) result in corrole-TiO2 NP conjugates. The functionalized NP surfaces were investigated by solid-state Fourier transform infrared and X-ray photoelectron spectroscopies and by confocal fluorescence imaging. The fluorescence images for 1-Al-TiO2 and 1-Ga-TiO2 suggest a promising application of these NP conjugates as contrast agents for noninvasive optical imaging.
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