Two new sterically hindered phthalocyanines: synthetic and photodynamic aspects.
Two new sterically hindered phthalocyanines: synthetic and photodynamic aspects.
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两种新的位阻酞菁：合成和光动力方面。
DOI：
10.1111/j.1751-1097.1992.tb08510.x
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发表时间：
1992
影响因子：
3.3
通讯作者：
Kenney,ME
中科院分区：
文献类型：
--
作者：
Rihter,BD;Bohorquez,MD;Rodgers,MA;Kenney,ME
The synthesis and the properties of l,4‐dibutoxy‐2,3‐dicyanotriptycene, of a metal‐free tetradibenzobarrelenooctabutoxyphthalocyanine, and of the corresponding zinc phthalocyanine are described. The two phthalocyanines do not aggregate when dissolved in benzene at concentrations up to 450 μM. For the metal‐free and the zinc compounds, the red band maxima are at 736 and 757 nm, the triplet maxima are at 590 and 605 nm, the triplet state lifetimes are 58 and 177μs, and the protoporphyrin‐IX dimethyl ester‐to‐compound bimolecular rate constants for triplet energy transfer are 2.61 × 108and 1.47 × 108M‐1s‐1. Triplet energy transfer from the metal‐free compound to O2is endoergonic by 1.0 kcal mol‐1. The potential of the zinc compound for photodynamic therapy is touched upon.
