RAMANSTUDIESOFSTRUCTURALPHASETRANSITIONIN[n-C11H28NH8]2ZnCl4

被引：0

作者：

Ning GUO Guang Fu ZENG Shi Quan XI Changchun Institute of Applied ChemistryAcademia SinicaChangchun ^{[130022
]}

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来源：

ChineseChemicalLetters | 1993年 / 03期

关键词：

Raman spectrosocopy; molecular conformation; phase transition; bis(n-undecylammonium)tetrachlorozincate;

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摘要：

<正> The perovskite type of compound [n-C11H23N3]2ZnCl4(abr.C11Zn)exhibits two solid-solid phasetransitions at Tc1=298.7 K and Tc2=360.1 K.A temperature dependence study of Raman spectra of C11Znprovides the evidence of occurence of the structural phase transition related to the dynamics of thealkylammonium ions.The room temperature phase is ordered and contains the all-trans alkyl chains.Theintermediate temperature phase presents a partial conformational disorder and liquidlike state of allconformational disorder occurs at high-temperature phase.

引用

页码：255 / 256

页数：2