ROOM-TEMPERATURE TRIPLE PROTON-TRANSFER OF 7-HYDROXYQUINOLINE AND STABILIZATION OF ITS GROUND-STATE KETO TAUTOMER IN A POLYMERIC MATRIX

被引：57

作者：

DOUHAL, A

SASTRE, R

机构：

[1] CSIC,INST QUIM FIS ROCASOLANO,E-28006 MADRID,SPAIN

[2] CSIC,INST POLIMEROS,E-28006 MADRID,SPAIN

来源：

CHEMICAL PHYSICS LETTERS | 1994年 / 219卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(94)00065-4

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：

7-hydroxyquinoline (7HQ) dissolved in a solid poly(2-hydroxyethylmethacrylate) (PHEMA) matrix shows dual fluorescence at room temperature: a blue one (376 nm) from enol forms and a green one (515 nm) from the keto tautomer. This isomer can be populated by an excited-state triple proton transfer in well-bridged complexes of 7HQ-PHEMA or by vertical excitation of the long-term stable keto tautomer in the ground state.

引用

收藏

页码：91 / 94

页数：4

相关论文

共 19 条

[1] PROTON-TRANSFER LASING FROM SOLID ORGANIC MATRICES [J].

ACUNA, AU ;

AMATGUERRI, F ;

COSTELA, A ;

DOUHAL, A ;

FIGUERA, JM ;

FLORIDO, F ;

SASTRE, R .

CHEMICAL PHYSICS LETTERS, 1991, 187 (1-2) :98-102

[2]

AMATGUERRI F, 1992, CHEM PHYS LETT, V209, P352

[3] LUMINESCENCE AND HYDROGEN-BONDING IN QUINOLINE AND ISOQUINOLINE [J].

ANTON, MF ;

MOOMAW, WR .

JOURNAL OF CHEMICAL PHYSICS, 1977, 66 (05) :1808-1818

[4] THE NATURE OF THE SILICA CAGE AS REFLECTED BY SPECTRAL CHANGES AND ENHANCED PHOTOSTABILITY OF TRAPPED RHODAMINE-6G [J].

AVNIR, D ;

LEVY, D ;

REISFELD, R .

JOURNAL OF PHYSICAL CHEMISTRY, 1984, 88 (24) :5956-5959

[5]

DOUHAL A, IN PRESS J PHOTOCH A

[6]

ELSAYED MA, 1959, SPECTROCHIM ACTA, V15, P758

[7] SPIN-ORBIT COUPLING AND RADIATIONLESS PROCESSES IN NITROGEN HETEROCYCLICS [J].

ELSAYED, MA .

JOURNAL OF CHEMICAL PHYSICS, 1963, 38 (12) :2834-&

[8] PERTURBATIONAL ENHANCEMENT OF COUPLING BETWEEN LOWEST 2 ELECTRONIC PI, PI STATES IN NAPHTHALENE [J].

ELSAYED, MA .

JOURNAL OF CHEMICAL PHYSICS, 1962, 36 (07) :1943-&

[9] ABSORPTION SPECTRA OF HETEROCYCLIC COMPOUNDS .1. QUINOLINOLS AND ISOQUINOLINOLS [J].

EWING, GW ;

STECK, EA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1946, 68 (11) :2181-2187

[10] ABSORPTION, EMISSION AND LIFETIMES OF [2,2'-BIPYRIDYL]-3,3'-DIOL IN SOL-GEL GLASSES AND IN POLYMETHYLMETHACRYLATE [J].

EYAL, M ;

REISFELD, R ;

CHERNYAK, V ;

KACZMAREK, L ;

GRABOWSKA, A .

CHEMICAL PHYSICS LETTERS, 1991, 176 (06) :531-535