(1Z,3Z)-1,4-DIPHENYL-1,4-BIS(P-TOLYLMETHYLTHIO)-1,3-BUTADIENE

被引:2
|
作者
FREEMAN, F [1 ]
LU, HY [1 ]
ZILLER, JW [1 ]
RODRIGUEZ, E [1 ]
机构
[1] UNIV CALIF IRVINE, DEPT DEV & CELL BIOL, PHYTOCHEM & TOXICOL LAB, IRVINE, CA 92717 USA
关键词
D O I
10.1107/S0108270194007845
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The crystal structure of (1Z,3Z)-1,4-diphenyl-1,4-bis-(p-tolylmethylthio)-1,3-butadiene (1), C32H30S2, is described. Compound (1) has an s-trans conformation. The single bond length, C(2)-C(2'), in compound (1) of 1.432 (5) Angstrom is shorter than the C(3)-C(4) single bond (1.48 Angstrom) in 1,3-butadiene and the double-bond length, C(1)-C(2), of 1.350 (3) Angstrom in compound (1) is comparable to that in 1,3-butadiene (1.34 Angstrom). The short C-C single and double bonds in (1) may be attributed to delocalization (resonance) over the planar four-atom unit, hybridization changes, the presence of the S atoms, and/or other factors.
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页码:659 / 661
页数:3
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