NEUTRAL-IONIC INTERFACE IN MIXED STACK CHARGE-TRANSFER COMPOUNDS - PRESSURE-INDUCED IONIC PHASE OF TETRATHIAFULVALENE-CHLORANIL (TTF-CA)

被引：37

作者：

GIRLANDO, A

PECILE, C

BRILLANTE, A

SYASSEN, K

机构：

[1] UNIV BOLOGNA,INST PHYS,I-40136 BOLOGNA,ITALY

[2] UNIV DUSSELDORF,INST PHYS 3,D-4000 DUSSELDORF 1,FED REP GER

来源：

SOLID STATE COMMUNICATIONS | 1986年 / 57卷 / 12期

关键词：

SOLIDS; -; Ionization;

D O I：

10.1016/0038-1098(86)90918-X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The infrared spectra of the high pressure, quasi-ionic phase of the title compound are presented and interpreted. Under experimental conditions, the high pressure phase has a dimerized stack structure, like the low-temperature one, but a larger degree of ionicity: 0. 8//4 vs. 0. 6//4. Both transitions are from a quasi neutral (degree of ionicity: 0. 2//4) regular stack, to a quasi ionic dimerized stack phase. However, the two neutral-ionic phase transitions seem to be characterized by slightly different mechanisms.

引用

页码：891 / 896

页数：6

共 21 条

[1]

Bozio R., 1980, Physics and Chemistry of Low Dimensional Solids. Proceedings of the NATO Advanced Study Institute, P165

[2] VIBRATIONAL SPECTROSCOPY OF MIXED STACK ORGANIC SEMICONDUCTORS - NEUTRAL AND IONIC PHASES OF TETRATHIAFULVALENE CHLORANIL (TTF-CA) CHARGE-TRANSFER COMPLEX [J].