Molecular compasses and gyroscopes: Engineering molecular crystals with fast internal rotation

被引：56
|
作者：
Khuong, TAV [1 ]
Zepeda, G [1 ]
Ruiz, R [1 ]
Khan, SI [1 ]
Garcia-Garibay, MA [1 ]
机构：
[1] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
来源：
CRYSTAL GROWTH & DESIGN | 2004年 / 4卷 / 01期
关键词：
D O I：
10.1021/cg034144b
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Crystals of 1,4-bis[3,3,3-tri(3,4-ditertbutyl)phenylpropynyl] benzene 1c may be viewed as a collection of molecular gyroscopes having a central p-diethynylphenylene as a rotary element encased by two bulky triarylmethyl groups. Single-crystal X-ray analysis, C-13 CPMAS NMR, and H-2 NMR quadrupolar-echo line-shape analysis revealed a lattice of molecules with phenylene groups experiencing rotary motion in the gigahertz regime near ambient temperature.
引用
收藏
页码：15 / 18
页数：4
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