Raman spectra and conformational properties of hexyl- and methylsulphanyl-substituted oligothiophenes

被引：10

作者：

Bongini, A

Barbarella, G

Zambianchi, M

Hernández, V

Navarrete, JTL

机构：

[1] Univ Bologna, Dipartimento Chim G Ciamician, I-40126 Bologna, Italy

[2] CNR, Area Ric, ICoCEA, I-40129 Bologna, Italy

[3] Univ Malaga, Dept Quim Fis, E-29071 Malaga, Spain

来源：

SYNTHETIC METALS | 2000年 / 108卷 / 01期

关键词：

oligothiophenes; Raman spectra; MM2; calculations;

D O I：

10.1016/S0379-6779(99)00166-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A Raman study on bithiophenes beta-functionalized with hexyl and methylsulphanyl (SCH3) groups and a quaterthiophene beta-functionalized with methylsulphanyl groups is reported. MM2 calculations were carried out on the hexyl derivatives and the results compared to those derived from Raman data. Evidence was obtained of the fact that the conformational preferences of alkyl bithiophenes are the same both in dilute solution and as pure liquids. Raman data confirm the efficiency of the SCH, group in compensating the loss of pi conjugation. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：27 / 31

页数：5

共 29 条

[1] Electronic and dynamical effects from the unusual features of the Raman spectra of oligo and polythiophenes
Agosti, E
Rivola, M
Hernandez, V
Del Zoppo, M
Zerbi, G
[J]. SYNTHETIC METALS, 1999, 100 (01) : 101 - 112
[2] THEORY OF RAMAN INTENSITIES
ALBRECHT, AC
[J]. JOURNAL OF CHEMICAL PHYSICS, 1961, 34 (05) : 1476 - &
[3] [Anonymous], VIBRAT SPEC
[4] Antolini L, 1998, ADV MATER, V10, P382, DOI 10.1002/(SICI)1521-4095(199803)10:5<382::AID-ADMA382>3.0.CO
[5] 2-Y
[6] ELECTROCHEMICAL AND OPTICAL-PROPERTIES OF POLY(3-METHYLTHIOPHENES) ELECTROSYNTHESIZED BY 3,3'-4,4'-DIMETHYL-2,2'-BITHIOPHENES, 3,4'-4,4'-DIMETHYL-2,2'-BITHIOPHENES AND 4,4'-DIMETHYL-2,2'-BITHIOPHENES
ARBIZZANI, C
BARBARELLA, G
BONGINI, A
MASTRAGOSTINO, M
ZAMBIANCHI, M
[J]. SYNTHETIC METALS, 1992, 52 (03) : 329 - 339
[7] POLYALKYLTHIOPHENES AS ELECTROCHROMIC MATERIALS - A COMPARATIVE-STUDY OF POLY(3-METHYLTHIOPHENES) AND POLY(3-HEXYLTHIOPHENES)
ARBIZZANI, C
BONGINI, A
MASTRAGOSTINO, M
ZANELLI, A
BARBARELLA, G
ZAMBIANCHI, M
[J]. ADVANCED MATERIALS, 1995, 7 (06) : 571 - 574
[8] Functionalization of sexithiophene with electron-donating methylsulphanyl groups
Barbarella, G
Zambianchi, M
DiToro, R
Colonna, M
Antolini, L
Bongini, A
[J]. ADVANCED MATERIALS, 1996, 8 (04) : 327 - 331
[9] REGIOCHEMISTRY AND CONFORMATION OF POLY(3-HEXYLTHIOPHENE) VIA THE SYNTHESIS AND THE SPECTROSCOPIC CHARACTERIZATION OF THE MODEL CONFIGURATIONAL TRIADS
BARBARELLA, G
BONGINI, A
ZAMBIANCHI, M
[J]. MACROMOLECULES, 1994, 27 (11) : 3039 - 3045
[10] THE DEFORMABILITY OF THE THIOPHENE RING - A KEY TO THE UNDERSTANDING OF THE CONFORMATIONAL PROPERTIES OF OLIGOPHENES AND POLYTHIOPHENES
BARBARELLA, G
ZAMBIANCHI, M
BONGINI, A
ANTOLINI, L
[J]. ADVANCED MATERIALS, 1993, 5 (11) : 834 - 838

← 1 2 3 →