Allotropic transformation of Se8 to Sen

被引：3

作者：

Cernosek, Zdenek ^{[1
]}

Holubova, Jana ^{[1
]}

Cernoskova, Eva ^{[2
]}

机构：

[1] Univ Pardubice, Dept Gen & Inorgan Chem, Fac Chem Technol, Pardubice, Czech Republic

[2] Acad Sci Czech Republic, Joint Lab Solid State Chem, Inst Macromol Chem, Vvi, Pardubice, Czech Republic

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2011年 / 103卷 / 02期

关键词：

Selenium; Allotropic transformation; Conventional DSC; StepScan DSC; Raman spectroscopy; Optical microscopy; MONOCLINIC SELENIUM; CRYSTAL-STRUCTURE; FORM;

D O I：

10.1007/s10973-010-0844-3

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Single crystals of cycloocta-Se, unambiguously characterized by XRD were prepared and used in a study of its allotropic transformation to polycatena-Se by DSC supported by Raman spectroscopy and optical microscopy. It was found that the transformation of a Se-8 single crystal to polycrystalline Se (n) proceeds progressively within the volume of the monoclinic single crystal without shape change. All the results of DSC, Raman spectroscopy, and optical microscopy indicate that previous proposals on cycloocta-Se melting during transformation are not realistic.

引用

页码：429 / 433

页数：5

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