STEADY-STATE AND TRANSIENT STUDY OF 2-NAPHTHOL-DIETHYLAMINE CHARGE-TRANSFER COMPLEXES IN POLAR AND NONPOLAR-SOLVENTS

被引：6

作者：

BISHT, PB

TRIPATHI, HB

PANT, DD

机构：

[1] Photophysics Laboratory, Kumaun University, Naini Tal, 263 002, D.S.B. Campus

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1991年 / 58卷 / 03期

关键词：

D O I：

10.1016/1010-6030(91)87048-Z

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：

Hydrogen bonded complexes of 2-naphthol-diethylamine were investigated in various polar and non-polar solvents. The ground state equilibrium constants and excited state Stern-Volmer quenching rates were calculated. The excitation spectra and time-resolved emission spectra indicate that, in non-polar solvents, the emission of the ground state hydrogen bonded complex is red shifted relative to that of free 2-naphthol, whereas the encounter complex formed in the excited state exhibits no emission. However, in polar solvents, the usual excited state proton transfer reaction takes place producing a risetime in the fluorescence decay curves and a large red shift in the spectra.

引用

页码：295 / 306

页数：12

共 19 条

[1] ELECTRONIC SPECTROSCOPY OF AROMATIC SCHIFF BASES-VII - SPECIFIC INTERACTIONS BETWEEN 5-DIMETHYLAMINO-3,3-DIMETHYL-2-(P-NITROPHENYL)-3H-INDOLE AND SMALL POLAR-MOLECULES [J].