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单链四苯酚基卟啉在CTAB胶束微环境中的去质子化现象

张韫宏;郭琳;李前树;王永强

  The deprotonation of an amphiphilic porphyrin, meso-tetra (p-hydroxylphenyl)porphyrin with a hexadecyl chain(THPPH2), has been observed by means of UV-Visspectroscopy in CTAB micellar solutions. With increasing of PH values, the Soret band shiftsfrom 424 nm to 441nm, and the four-Q bands (520 nm, 560 nm, 595nm, 655 nm) aredisappeared while two new Q-bands are appeared at 585 nm and 675 nm, which is similar tometal-porphyrin, means that the deprotonation of porphyrin takes place. Comparing withthe spectra in an other solutions, the spectral characteration of THPPH2 in neutral and inbasic CTAB solutions is similar to that in CHCI3 and basic aqueous solutions respectively,suggesting that the solubilizing location of THPPH2 takes a change from inner to the outer of theCTAB micellars with the PH value of solutions increasing between 6. 20 and 11. 19.……   
[关键词]:双亲卟啉;去质子化;增溶位置;CTAB胶束
[文献类型]:期刊
[文献出处]: 《高等学校化学学报1997年10期