Energy calculations related to aliphatic chain-packing modes

被引：0

作者：

Meister, A ^{[1
]}

Förster, G ^{[1
]}

Blume, A ^{[1
]}

机构：

[1] Univ Halle Wittenberg, Inst Phys Chem, D-06108 Halle, Germany

来源：

TRENDS IN COLLOID AND INTERFACE SCIENCE XIV | 2000年 / 115卷

关键词：

long-chain compounds; hydrocarbon chain-packing modes; orthorhombic subcell; van der Waals energy; contour plot;

D O I：

暂无

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：

X-ray measurements reveal that the orthorhombic gel phase of long-chain lipids shows a large variation in structural properties. These can be classified by systematic lattice energy calculations. Typical Values are reported for the space group Pbnm. The experimental X-ray data of two samples (dihexadecylphos-phatidylethanolamine, n-docosyl-phosphocholine) are used to obtain energy data for different indexing combinations in each phase. The most probable polymorphism was selected by applying a continuous energy criterion. It allows a discussion of packing frustration or freedom of the respective lipid in the bilayer or monolayer structure on heating.

引用

页码：259 / 264

页数：6

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