Triplet states of six-membered N-heterocycles: Phosphorescence of pyrazine and its two conjugate acids

被引：15

作者：

Ghabowska, A. ^{[1
]}

Pakula, B. ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Phys Chem, Warsaw 42, Poland

来源：

CHEMICAL PHYSICS LETTERS | 1967年 / 1卷 / 09期

关键词：

D O I：

10.1016/0009-2614(67)80037-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The phosphorescence spectra of the pyrazine molecule and of its mono- and diprotonated forms have been measured in aqueous solvents. Emission maxima occur respectively at: 26 700 cm(-1), 21 600 cm(-1) and 24 100 cm(-1). The nature of the excited states involved is discussed, and an explanation of the redshift of phosphorescence under protonation is proposed in terms of acid-base equilibria of pyrazine in its lowest triplet state.

引用

页码：369 / 372

页数：4

共 15 条

[1] SEMIEMPIRICAL CALCULATION ON THE ELECTRONIC STRUCTURE OF THE NITROGEN-CONTAINING HETEROCYCLIC MOLECULES .3. LOWER TRIPLET LEVELS OF PYRAZINE [J].