Fluorotris(trifluoromethylsulfonyl)methane: synthesis, characterization and reactivity
摘要:
The hitherto elusive title compound was synthesized and characterized with the aim to study its potential as a carbon-based ("CF-type") electrophilic fluorination reagent. A detailed discussion of its structure, properties and reactivity is based on experimental studies as well as on molecular modeling. (C) 2003 Elsevier Science B.V. All rights reserved.
Comparative electrochemical study of new poly(oxyethylene)–Li salt complexes
摘要:
碱金属盐与聚(氧乙烯)(POE)络合后具有高离子电导率,这激发了人们对固体聚合物电解质的广泛研究。差示扫描量热法(DSC)、循环伏安法和电导率测量法被用于探索两种前景广阔的新型锂盐的基本电化学特性:Li[(CF3SO2)2N](LiTFSI)和Li[(CF3SO2)3C](LiTriTFSM)。一项对含有不同浓度锂盐的膜的离子电导率随温度变化的研究表明,与迄今为止使用的所有其他盐相比,这些新化合物显著提高了电导率,这主要是由于结晶度较低。在0.2至3.9 V vs. Li+/Li°之间的伏安图显示,三种无水络合物POE-LiTFSI、POE-LiTriTFSM和POE-50%LiTFSI-50%LiTriTFSM具有较宽的电化学稳定性窗口。