Phase-sensitive second harmonic microscopy reveals bipolar twinning of Markov-type molecular crystals

被引：46

作者：

Rechsteiner, P

Hulliger, J

Flörsheimer, M

机构：

[1] Univ Bern, Dept Chem & Biochem, CH-3012 Bern, Switzerland

[2] Univ Munster, Inst Phys, D-48149 Munster, Germany

来源：

CHEMISTRY OF MATERIALS | 2000年 / 12卷 / 11期

关键词：

D O I：

10.1021/cm001018b

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Phase-sensitive second harmonic microscopy (PS-SHGM) opens up the possibility of imaging the bipolar state of Markov-type organic supramolecular crystals. During the cocrystallization of dipolar guest and nonpolar host compounds, channel-type inclusion compounds form crystals composed of adjacent macrodomains featuring opposite polarities. Through a comparison with crystals of known absolute polarity, the application of PS-SHGM allows a fast noncontact mapping of the domain structure and a determination of the absolute polarity of thin organic and other nonlinear epical crystals.

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页码：3296 / 3300

页数：5

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