摘要
在25—88℃的温度范围内考察了四氯合锰(Ⅱ)酸双十四烷铵的红外光谱随温度的变化关系,确定了该化合物在67℃和78℃时发生了两次固—固结构相变。在温度低于67℃时,分子的排列是高度有序的;温度高于67℃时,分子排列的有序度降低;温度高于78℃时,分子排列的有序度再次降低。
FT-IR spectroscopy is used to study the structural phase transitions of crystals of bis (n-tetradecylammonium)-tetrachloromanganate (Ⅱ) in the temperature range from 25 to 88 ℃ . The results show that the compound undergoes two phase transitions at 67 ℃ and 78 ℃. The crystals at the temperature below 67 Care well-ordered. At the temperature above 67 ℃ the interactions between hydrocarbon chains decrease. At the temperature above 78 ℃there are presence of the chain sequences of gauche-trans-gauche isomerizations.
出处
《重庆师范学院学报（自然科学版）》
1991年第3期5-10,共6页
Journal of Chongqing Normal University(Natural Science Edition)
关键词
四氯合锰酸
双十四铵
FT-IR光谱
bis (n-tetradecylammonium) tetrachloromanganate (II). phase transition, molecular conformation, FT-IR spectroscopy
