Gradiushko A T, Solov'ev K N, Turkova A E, Tsvirko M P
Biofizika. 1975 Jul-Aug;20(4):602-7.
The phosphorescence of dihydrooctaethylporphin (octaethylchlorin or OEC), of its complexes with magnesium, zinc, copper and palladium, and of zinc and palladium complexes of isobacteriooctaethylchlorin (5,6,7,8-tetrahydrooctaethylporphin with adjacent hydrogenated pyrrole rings or THOEP-ADJ) has been investigated. The phosphorescence spectra and phosphorescence excitation spectra as well as the ratio of fluorescence and phosphorescence yields and the triplet state lifetume have been measured. It has been shown that the singlet-triplet interval is about 4100 cm-1 for OEC complexes and about 4300 cm-1 for THOEP-ADJ complexes, and depends wealky on the nature of the metal atom forming the complex. The triplet level position of chlorophyll alpha is discussed. It is concluded that the maximum of chlorophyll alpha phosphorescence spectrum must be located at 895 nm.
已对二氢八乙基卟吩（八乙基二氢卟吩或OEC）、其与镁、锌、铜和钯形成的配合物以及异细菌八乙基二氢卟吩（具有相邻氢化吡咯环的5,6,7,8 - 四氢八乙基卟吩或THOEP - ADJ）的锌和钯配合物的磷光进行了研究。已测量了磷光光谱、磷光激发光谱以及荧光和磷光产率的比值和三重态寿命。结果表明，对于OEC配合物，单重态 - 三重态间隔约为4100 cm-1，对于THOEP - ADJ配合物约为4300 cm-1，并且在一定程度上取决于形成配合物的金属原子的性质。讨论了叶绿素α的三重态能级位置。得出结论，叶绿素α磷光光谱的最大值必定位于895 nm处。
