STRUCTURAL ASPECTS OF OLIGOTHIENYL SERIES FROM X-RAY-POWDER DIFFRACTION DATA

被引：159

作者：

PORZIO, W

DESTRI, S

MASCHERPA, M

BRUCKNER, S

机构：

[1] CNR,IST CHIM MACROMOLEC,I-20133 MILAN,ITALY

[2] UNIV MODENA,IST CHIM,I-41100 MODENA,ITALY

来源：

ACTA POLYMERICA | 1993年 / 44卷 / 06期

关键词：

D O I：

10.1002/actp.1993.010440602

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The structures of the series of oligothienyls (T4-T5-T6) have been determined and refined from X-ray powder diffraction data using the Rietveld full-profile analysis. Unlike polythiophene, all the molecules in the isomorphous series display no internal symmetry, being only approximately planar within 12 degrees. Packing is always achieved through a common molecular disposition, which is usually defined as a herringbone arrangement, with an angle between mean planes of adjacent molecules which spans from 60 degrees to 70 degrees.

引用

收藏

页码：266 / 272

页数：7

相关论文

共 22 条

[1] FIELD-EFFECT TRANSISTORS USING ALKYL SUBSTITUTED OLIGOTHIOPHENES [J].

AKIMICHI, H ;

WARAGAI, K ;

HOTTA, S ;

KANO, H ;

SAKAKI, H .

APPLIED PHYSICS LETTERS, 1991, 58 (14) :1500-1502

[2] HIGHLY CONDUCTING POLYPARAPHENYLENE, POLYPYRROLE, AND POLYTHIOPHENE CHAINS - AN ABINITIO STUDY OF THE GEOMETRY AND ELECTRONIC-STRUCTURE MODIFICATIONS UPON DOPING [J].

BREDAS, JL ;

THEMANS, B ;

FRIPIAT, JG ;

ANDRE, JM ;

CHANCE, RR .

PHYSICAL REVIEW B, 1984, 29 (12) :6761-6773

[3]

BRUCKNER S, 1988, MAKROMOL CHEM, V189, P961

[4] MESOPHASE FORMATION IN ALPHA-SEXITHIENYL AT HIGH-TEMPERATURE - AN X-RAY-DIFFRACTION STUDY [J].

DESTRI, S ;

MASCHERPA, M ;

PORZIO, W .

ADVANCED MATERIALS, 1993, 5 (01) :43-45

[5] ENERGY CALCULATIONS FOR ISOTACTIC POLYPROPYLENE - A COMPARISON BETWEEN MODELS OF THE ALPHA-CRYSTALLINE AND GAMMA-CRYSTALLINE STRUCTURES [J].

FERRO, DR ;

BRUCKNER, S ;

MEILLE, SV ;

RAGAZZI, M .

MACROMOLECULES, 1992, 25 (20) :5231-5235

[6] STRUCTURE OF THE ALPHA AND BETA POLYMORPHS OF ISOTACTIC 1,4-CIS-POLY(2-METHYL-1,3-PENTADIENE) [J].

FERRO, DR ;

BRUCKNER, S ;

MEILLE, SV ;

RAGAZZI, M .

MACROMOLECULES, 1991, 24 (05) :1156-1160

[7] CRYSTALLINE ISOTACTIC TRANS-1,4-POLY(PENTA-1,3-DIENE) - A NEW APPROACH TO CONFORMATIONAL AND PACKING ENERGY EVALUATION [J].

FERRO, DR ;

BRUCKNER, S .

MACROMOLECULES, 1989, 22 (05) :2359-2363

[8] CRYSTAL PACKING AND LATTICE ENERGIES OF POLYTHIENYLS - CALCULATIONS AND PREDICTIONS [J].

GAVEZZOTTI, A ;

FILIPPINI, G .

SYNTHETIC METALS, 1991, 40 (02) :257-266

[9] THE OLIGOTHIOPHENE-BASED FIELD-EFFECT TRANSISTOR - HOW IT WORKS AND HOW TO IMPROVE IT [J].

HOROWITZ, G ;

PENG, XZ ;

FICHOU, D ;

GARNIER, F .

JOURNAL OF APPLIED PHYSICS, 1990, 67 (01) :528-532

[10] ALKYL-SUBSTITUTED OLIGOTHIOPHENES - CRYSTALLOGRAPHIC AND SPECTROSCOPIC STUDIES OF NEUTRAL AND DOPED FORMS [J].

HOTTA, S ;

WARAGAI, K .

JOURNAL OF MATERIALS CHEMISTRY, 1991, 1 (05) :835-842