摘要
用精密氧弹热量计测定了4种离子液体:氯化1-甲基-3-乙基咪唑(C2MIC),氯化1-甲基-3-丁基咪唑(C4MIC),氯化1-甲基-3-戊基咪唑(C5MIC)和氯化1-甲基-3-己基咪唑(C6MIC)的燃烧热,计算了它们的标准摩尔燃烧焓△cHm和标准摩尔生成焓△fHm,结合文献中的标准摩尔溶解焓,估算了烷基咪唑阳离子在水溶液中的标准摩尔生成焓,以及亚甲基对标准摩尔燃烧焓和标准摩尔生成焓的贡献.
Using an oxygen-bomb combustion calorimeter the molar combustion heats of the ionic liquids of alkylimidazolium chloride： 1-methyl-3-ethylimidazolium chloride （C2MIC）, 1-methyl-3-butylimidazo- lium chloride （C4MIC）, 1-methyl-3-pentylimidazolium chloride （CsM1C）, and 1-methyl-3-hexylimidazolium chloride （C6MIC）, were determined at （298.15 ±0.01） K. The standard molar combustion enthalpies AcHme and the standard molar formation enthalpies △fHm^ were calculated. With standard molar enthalpies of solution △sHm^ of C2MIC, C4MIC, C5MIC and C6MIC in literature, the standard molar enthalpies of formation of C2MI^＋, C4MI^＋, C5MI^＋, and C6MI^＋ were obtained. The contribution of one methylene group to the △cHm^ and △fHm^ was also estimated, respectively.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
2008年第15期1833-1836,共4页
Acta Chimica Sinica
基金
国家自然科学基金(No.20773056)
辽宁省教育厅(No.2004066C)资助项目
关键词
氯化烷基咪唑
离子液体
氧弹热量计
燃烧热
生成焓
alkylimidazolium chloride
ionic liquid
oxygen-bomb combustion calorimetry
enthalpy of combustion
enthalpy of formation
