Structure and Dynamics in Columnar Discotic Materials: A Combined X-ray and Solid-State NMR Study of Hexabenzocoronene Derivatives
Structure and Dynamics in Columnar Discotic Materials: A Combined X-ray and Solid-State NMR Study of Hexabenzocoronene Derivatives
复制标题
柱状盘状材料的结构和动力学：六苯并苯衍生物的 X 射线和固态核磁共振联合研究
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发表时间：
2002
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通讯作者：
K. Saalwächter
中科院分区：
文献类型：
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作者：
Ingrid Fischbach;T. Pakuła;P. Minkin;A. Fechtenkötter;K. Müllen;H. Spiess;K. Saalwächter
The solid columnar discotic and liquid crystalline (LC) phases formed by alkyl-substituted hexabenzocoronene (HBC) mesogens have been investigated by a combination of X-ray scattering and a variety of advanced solid-state NMR methods. Correlations between chemical structure, molecular packing and dynamics are established. Maximum charge carrier mobility is observed for a crystal-like stacking of the disks in the column with optimized π−π interactions. For systems with lower intracolumnar order the charge carrier mobility is slightly lower and slow axial motion of the disks around the column axes occurs.
