Decorating Metal Oxide Surfaces with Fluorescent Chlorosulfonated Corroles
Decorating Metal Oxide Surfaces with Fluorescent Chlorosulfonated Corroles
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DOI：
10.1021/ic400410k
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发表时间：
2013-05-06
影响因子：
4.6
通讯作者：
Sorasaenee, Karn
中科院分区：
文献类型：
--
作者：
Blumenfeld, Carl M.;Grubbs, Robert H.;Sorasaenee, Karn
我们制备了2,17-二（氯磺酰基）-5,10,15-三（五氟苯基）- corrole(1), 2,17-二（氯磺酰基）-5,10,15-三（五氟苯基）- corrole铝（III） （1- al）和2,17-二（氯磺酰基）-5,10,15-三（五氟苯基）- corlatogallium (III) （1- ga）。对金属配合物1-Al和1-Ga进行了分离，并用电子吸收谱、核磁共振谱和质谱进行了表征。在甲苯中测定的1,1 - al和1- ga的相对发射量子产率分别为0.094,0.127和0.099。1,1 - al和1- ga与TiO2纳米粒子（NPs）之间的反应产生腐蚀-TiO2 NP共轭物。利用固体傅里叶变换红外光谱和x射线光电子能谱以及共聚焦荧光成像研究了功能化的NP表面。1-Al-TiO2和1-Ga-TiO2的荧光图像表明，这些NP偶联物作为造影剂在无创光学成像中的应用前景广阔。
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.