期刊
JOURNAL OF FLUORESCENCE
卷 18, 期 1, 页码 41-49出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10895-007-0233-x
关键词
proton transfer; quantum calculations; cryogenic; dipole
资金
- NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [P01GM048130] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE [F31NS053399] Funding Source: NIH RePORTER
- NIGMS NIH HHS [P01 GM48130] Funding Source: Medline
- NINDS NIH HHS [F31 NS053399] Funding Source: Medline
Pyrene-1-carboxy acid has a pK of 4 in the ground state, and a pK of 8 in the excited state. Fluorescence spectra of the acid and base forms are presented as a function of solvent and temperature. Ab initio quantum calculations indicate that the bond between the ring system and the carboxyl group has aromatic character that becomes stronger upon excitation. This stabilization helps to account for the increase in pK upon excitation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据