A ROLE OF MOLECULAR COMPRESSIBILITY IN TRANSFORMATION MECHANISM OF MIXED-STACK ORGANIC CHARGE-TRANSFER CRYSTALS

被引：13

作者：

LUTY, T ^{[1
]}

机构：

[1] UNIV RENNES 1,PHYS CRISTALLINE GRP,F-35010 RENNES,FRANCE

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1992年 / 61卷 / 10期

关键词：

D O I：

10.1143/JPSJ.61.3636

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The neutral-ionic transformation in mixed-stack organic charge-transfer (CT) crystals has been analysed within a phenomenological theory. The theory uses two parameters: lattice distortion (the stack dimerization) which breaks inversion symmetry and molecular deformation (related to molecular ionicity) which preserves site symmetry. A coupling of totally symmetric molecular vibrations with a charge-transfer between donor and acceptor molecules allows to introduce the concept of molecular compressibility which includes both elastic and electronic contributions. The concept helps to understand discontinuity of the neutral-ionic transformation and can be usefull in the theory of solid state chemistry.

引用

页码：3636 / 3642

页数：7

共 30 条

[1] NEUTRAL-IONIC TRANSITIONS IN ORGANIC MIXED-STACK COMPOUNDS [J].

BRUINSMA, R ;

BAK, P ;

TORRANCE, JB .

PHYSICAL REVIEW B, 1983, 27 (01) :456-466

[2] INTERACTION OF ELECTRONS WITH MOLECULAR VIBRATIONS OF BENZENE [J].

DUKE, CB ;

LIPARI, NO ;

PIETRONERO, L .

CHEMICAL PHYSICS LETTERS, 1975, 30 (03) :415-420

[3]

GIRFANDO A, 1985, SOLID STATE COMMUN, V54, P753

[4] REGULAR-DIMERIZED STACK AND NEUTRAL-IONIC INTERFACES IN MIXED-STACK ORGANIC CHARGE-TRANSFER CRYSTALS [J].

GIRLANDO, A ;

PAINELLI, A .

PHYSICAL REVIEW B, 1986, 34 (04) :2131-2139

[5] REGULAR-DIMERIZED STACK VS NEUTRAL-IONIC INSTABILITY IN MIXED STACK CT CRYSTALS [J].

GIRLANDO, A ;

PAINELLI, A .

PHYSICA B & C, 1986, 143 (1-3) :559-561

[6]

GIRLANDO A, 1982, PHYS REV B, V26, P2306, DOI 10.1103/PhysRevB.26.2306

[7] MIXED STACK COMPOUNDS, PHONONS AND SOLITONS [J].

HOROVITZ, B .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1985, 120 (1-4) :1-8

[8] SPECTROSCOPY OF DIMERIZATION IN ORGANIC MIXED-STACK COMPOUNDS AND TETRAMETHYL-PARA-PHENYLENE-DIAMINE CHLORANIL [J].

HOROVITZ, B ;

SHUKER, R ;

ZEIRI, L .

PHYSICAL REVIEW B, 1986, 34 (08) :6056-6059

[9] DIMERIZATION TRANSITION VERSUS NEUTRAL-IONIC TRANSITION IN ORGANIC MIXED-STACK COMPOUNDS [J].

HOROVITZ, B ;

SOLYOM, J .

PHYSICAL REVIEW B, 1987, 35 (13) :7081-7089

[10] DIATOMIC POLYMERS, MIXED-STACK COMPOUNDS, AND THE SOLITON LATTICE [J].

HOROVITZ, B ;

SCHAUB, B .

PHYSICAL REVIEW LETTERS, 1983, 50 (24) :1942-1945

← 1 2 3 →