STRUCTURAL ASPECTS OF OLIGOTHIENYLS FROM X-RAY-POWDER DIFFRACTION DATA

被引:41
作者
PORZIO, W
DESTRI, S
MASCHERPA, M
ROSSINI, S
BRUCKNER, S
机构
[1] CNR,IST SPETTROSCOPIA MOLEC,I-40126 BOLOGNA,ITALY
[2] UNIV MODENA,IST CHIM,I-41100 MODENA,ITALY
关键词
OLIGOTHIENYL; STRUCTURE; POWDER DIFFRACTION;
D O I
10.1016/0379-6779(93)90966-Z
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The structures of oligothienyls (T4-T6) has been evinced from x-ray powder diffraction data using the Rietveld full-profile analysis on particularly pure samples , we were able to overcome preferred orientation effects. Both T4 and T6 molecules display no internal symmetry, are planar within 10-degrees and present a herringbone arrangement, the angle between mean planes of adjacent molecules ranges from 70-degrees(T4) to 60-degrees(T6). Intra and intermolecular energy minimization is in progress.
引用
收藏
页码:408 / 413
页数:6
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