摘要
测定了三种含异硫氰基3∶1不对称酞菁锌配合物(RO)6(NCS)PcZn(Ⅱ)(R=n-C4H9;n-C5H11;n-C10H21)在五种有机溶剂中的电子吸收光谱,研究了取代基和溶剂对吸收光谱的影响和规律。同时测定它们在有机溶剂中的荧光发射光谱,研究了外部取代基、溶剂和浓度对最大发射波长及荧光强度的影响规律,发现此类配合物具有特定的荧光效应,有望成为光动力诊断和治疗的有效光敏剂。
Electronic absorption spectra of three monoisothiocyanato-substituted asymmetrical phthalocyanine zinc （ Ⅱ ）, 2-isothiocyanato-9,10,16,17,23,24-alkyloxyphthalocyanine zinc（ Ⅱ ） [ （RO）6 （NCS） PcZn （ Ⅱ ）] （R=n-C4 Hg, n-C5 H11, n-C10 H21 ）, were measured in five organic solvents. The effect and order of the substitute groups and solvents were studied by electronic ab- sorption spectra. The changes of λmax data are very small between monoaminoand monoisothiocyanato-substituted asymmetrical phthalocyanines. The order of λmax data is listed here, CHCl3 〉CH2Cl2 〉toluene in non-coordination solvents; DMF〉THF in O-coordination solvents. The fluorescence spectra of these complexes were measured in organic solvents at the same time. The effect and order of the substitute groups, solvents and concentrations were studied on the maximum wavelength of emission and fluorescence intensity. The 2 data of fluorescence emission are among 690-700 nrn. The order of 2 data is listed here, DMF〉THF in O-coordination solvents and almost the same in non-coordination solvents. The fluorescence intensity is very strong in DMF and THF. The order of fluorescence intensity is listed here, DMF〉THF in O-coordination solvents; toluene〉 CH2Cl2 〉CHCl3 in non-coordination solvents. They have special fluorescent effect and should be expected to become a photosensitizer of photodynamic therapy in future.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2007年第3期543-546,共4页
Spectroscopy and Spectral Analysis
基金
黑龙江省教育厅科学技术研究项目(10541170)
黑龙江省自然科学基金项目(B2004-05)资助
关键词
单异硫氰基
不对称酞菁
电子吸收光谱
荧光光谱
Monoisothiocyanato group
Asymmetrical phthalocyanine
Electronic absorption spectrum
Fluorescence spectrum
