ANISOTROPIC DISTORTION OF J-AGGREGATES AT DECREASING TEMPERATURE

被引：3

作者：

DAEHNE, L ^{[1
]}

ENDRISS, A ^{[1
]}

IHRINGER, J ^{[1
]}

机构：

[1] UNIV TUBINGEN,INST KRISTALLOG,D-72070 TUBINGEN,GERMANY

来源：

CHEMICAL PHYSICS LETTERS | 1994年 / 224卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(94)00504-4

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：

Temperature-dependent X-ray diffraction exhibits that the J-aggregates in crystals of bis-(dimethylamino)-heptamethinium perchlorate contract unusually strong at low temperature. The intermolecular distance between the dye cations is reduced from 354 pm at room temperature to 336 pm at 30 K. The results are an important due for the explanation of unusual temperature dependence of collective phenomena of J-aggregates.

引用

页码：91 / 94

页数：4

共 16 条

[1]

DAHNE L, 1992, B CHEM SOC JPN, V65, P2328

[2]

DAHNE L, UNPUB

[3] DEPHASING-INDUCED DAMPING OF SUPERRADIANT EMISSION IN J-AGGREGATES [J].

DEBOER, S ;

WIERSMA, DA .

CHEMICAL PHYSICS LETTERS, 1990, 165 (01) :45-53

[4] DYNAMICS OF FRENKEL EXCITONS IN DISORDERED MOLECULAR AGGREGATES [J].

FIDDER, H ;

TERPSTRA, J ;

WIERSMA, DA .

JOURNAL OF CHEMICAL PHYSICS, 1991, 94 (10) :6895-6907

[5] HOLE BURNING IN EXCITONIC STATES OF LONG-CHAIN MOLECULAR AGGREGATES [J].

HIRSCHMANN, R ;

KOHLER, W ;

FRIEDRICH, J ;

DALTROZZO, E .

CHEMICAL PHYSICS LETTERS, 1988, 151 (1-2) :60-64

[6]

IHRINGER, 1994, REV SCI INSTRUM, V12, P55

[7] AN AUTOMATED LOW-TEMPERATURE GUINIER X-RAY DIFFRACTOMETER AND CAMERA [J].

IHRINGER, J .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1982, 15 (FEB) :1-4

[8]

IHRINGER J, 1993, UNPUB METACH

[9] ON THE SPLITTINGS OF J-AGGREGATE BAND IN PSEUDOISOCYANINE [J].

ITO, H ;

AGATSUMA, M ;

IHAYA, YJ .

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1991, 64 (12) :3700-3706

[10] Spectral absorption and fluorescence of dyes in the molecular state [J].

Jelley, EE .

NATURE, 1936, 138 :1009-1010

← 1 2 →