- 作者: 張鎮平 ; 顏富祥 ; 周必泰 等
- 作者服務機構: 輔仁大學化學系
- 中文摘要:
Excited-state double proton transfer (ESDPT) has been studied in a variety of 1-azacarbazole (1AC) hosted hydrogen-bonded complexes. In 1AC/carboxylic acids hydrogen bonded complexes, large association constants of >1.0* 10/sup 4/M/sup -1/ are measured in the ground state and the rate of ESDPT is
5.0*10/sup 9/s/sup -1/, resulting in a dominant proton-transfer tautomer emission. In several 1AC/lactam hydrogen bonded complexes, however, spectral and dynamic results show the existence of a fast excited-state equilibrium between normal and proton-transfer tautomer states. The result can be tentatively rationalized by a non- catalytic ESDPT mechanism incorporating tautomerization energy of the guest molecule. - 英文摘要: --
- 中文關鍵字: Excited State; Double Proton Transfer; Azacarbazole; Hydrogen Bond; Complex
- 英文關鍵字: 激態;雙質子轉移;阿柞卡巴諾;氫鍵;錯合物