CRYSTAL-STRUCTURE OF 4,4',3'',4'''-TETRAMETHYL-2,2'/5',5'-5'',2'''-TETRATHIOPHENE - A COMPARISON WITH THE CONFORMATION IN SOLUTION

被引：95

作者：

BARBARELLA, G

ZAMBIANCHI, M

BONGINI, A

ANTOLINI, L

机构：

[1] UNIV BOLOGNA, DIPARTIMENTO CHIM G CIAMICIAN, I-40127 BOLOGNA, ITALY

[2] DIPARTIMENTO CHIM, I-41100 MODENA, ITALY

来源：

ADVANCED MATERIALS | 1992年 / 4卷 / 04期

关键词：

D O I：

10.1002/adma.19920040408

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Are thiophene rings and chains more easily deformed than those in polyphenylene, polyfuran and polypyrrole? The conformation has great influence on the conjugation length of the polymers and therefore on their optical and electronic properties. Data obtained from an extremely rare X-ray structure determination of an alpha, alpha'-conjugated oligothiophene is compared with that obtained from solution studies and both are discussed in light of MMP2 force-field calculations.

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页码：282 / 285

页数：4

相关论文

共 20 条

[1] TABLES OF BOND LENGTHS DETERMINED BY X-RAY AND NEUTRON-DIFFRACTION .1. BOND LENGTHS IN ORGANIC-COMPOUNDS [J].

ALLEN, FH ;

KENNARD, O ;

WATSON, DG ;

BRAMMER, L ;

ORPEN, AG ;

TAYLOR, R .

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 1987, (12) :S1-S19

[2] COMPARATIVE-STUDY OF THE ELECTRONIC-STRUCTURE AND CONDUCTION PROPERTIES OF POLYPYRROLE, POLYTHIOPHENE, AND POLYFURAN AND THEIR COPOLYMERS [J].

BAKHSHI, AK ;

LADIK, J ;

SEEL, M .

PHYSICAL REVIEW B, 1987, 35 (02) :704-712

[3] CONFORMATION AND OPTICAL-ABSORPTION PROPERTIES OF THIOPHENE OLIGOMERS - C-13-NMR, UV, AND MMP2 CALCULATIONS OF DI-QUATERTHIOPHENES AND TETRAMETHYL-QUATERTHIOPHENES [J].

BARBARELLA, G ;

BONGINI, A ;

ZAMBIANCHI, M .

ADVANCED MATERIALS, 1991, 3 (10) :494-496

[4]

BOLOGNESI A, 1991, MAKROMOL CHEM-RAPID, V12, P9

[5] ORGANIC POLYMERS BASED ON AROMATIC RINGS (POLYPARAPHENYLENE, POLYPYRROLE, POLYTHIOPHENE) - EVOLUTION OF THE ELECTRONIC-PROPERTIES AS A FUNCTION OF THE TORSION ANGLE BETWEEN ADJACENT RINGS [J].

BREDAS, JL ;

STREET, GB ;

THEMANS, B ;

ANDRE, JM .

JOURNAL OF CHEMICAL PHYSICS, 1985, 83 (03) :1323-1329

[6]

BRUCHNER S, 1988, MAKROMOL CHEM, V89, P961

[7]

CLARK T, 1989, NATO ASI SER, V197, P1

[8]

CLARK T, 1989, NATO ASI SER, V197, P13

[9] KINETICS OF THE REACTIONS OF SOME 5-BROMO-2-NITRO-3-R-THIOPHENS, 3,4-DIBROMO-2-NITRO-5-R-THIOPHENS, 3-BROMO-2-NITRO-5-R-THIOPHENS, AND 2-BROMO-3-NITRO-5-R-THIOPHENS WITH NUCLEOPHILES IN METHANOL [J].

CONSIGLIO, G ;

SPINELLI, D ;

GRONOWITZ, S ;

HORNFELDT, AB ;

MALTESSON, B ;

NOTO, R .

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 1982, (05) :625-630

[10] 2 HELICAL CONFORMATIONS OF POLYTHIOPHENE, POLYPYRROLE, AND THEIR DERIVATIVES [J].

CUI, CX ;

KERTESZ, M .

PHYSICAL REVIEW B, 1989, 40 (14) :9661-9670