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本文研究了9—苄(?)芴(9—BF)与强电子受体2,3,5,6——四氯苯醌(TCPQ)以及7,7,8,8——四氰基对苯二甲叉醌(TCNQ)所形成的电荷转移络合物.紫外吸收光谱表明,在可见光吸收区,9—BF—TCPO 和9—BF——TCNQ 络合物溶液分别在λmax=490nm 及574nm 出现一个表征电荷转移络合物形成的新的吸收峰.根据 Bensi—Hidebrand 方程,由紫外吸收光谱测定了上述两对电荷转移络合物的络合平衡常数.数据表明.9—BF—TCNQ 络合物的稳定性要比9—BF——TCPQ 络合物强.
In this paper, the effects of 9-benzyladenofluorene (9-BF) and strong electron acceptor 2,3,5,6-tetrachlorobenzoquinone (TCPQ) and 7,7,8,8- Benzoquinone (TCNQ) .Ultraviolet absorption spectroscopy showed that the 9-BF-TCPO and 9-BF-TCNQ complex solutions at λmax = 490 nm and 574 nm A new absorption peak characterizing the formation of charge-transfer complexes appears.According to the Bensi-Hidebrand equation, the complex equilibrium constants of the two pairs of charge-transfer complexes are determined by UV-absorption spectroscopy. The data show that the 9-BF-TCNQ complex The stability of the compound is stronger than 9-BF - TCPQ complex.