期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：1984
卷号：81
期号：6
页码：1913-1917
DOI：10.1073/pnas.81.6.1913
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：Electron diffraction measurements on epitaxially grown crystals of orthorhombic n-hexatriacontane, n-C36H74, give evidence for the chain-defect mechanism for linear chain melting. The derived structural model is also in accord with recent spectroscopic studies of odd-chain n-alkanes, and the diffraction data specifically exclude models based on helices or rigid chain rotors. Stability of a kinked chain structure, moreover, is indicated by an observed hysteresis effect that gives different pretransition temperatures for solution-grown and annealed crystals.
