Thermal properties and crystal structures of cobalt(III)-cyclam complexes with the bis(trifluoromethanesulfonyl)amide anion (cyclam=1,4,8,11-tetraazacyclotetradecane)

被引：3

作者：

Oba, Yukiko ^{[1
]}

Mochida, Tomoyuki ^{[1
]}

机构：

[1] Kobe Univ, Grad Sch Sci, Dept Chem, Nada, Hyogo 6578501, Japan

来源：

POLYHEDRON | 2015年 / 99卷

基金：

日本学术振兴会;

关键词：

Cyclam complex; Cobalt; Thermal analysis; Crystal structure; Hydrogen bond; SCHIFF-BASE COMPLEX; IONIC LIQUIDS; THERMODYNAMIC PROPERTIES; CYCLAM COMPLEXES; NITRIC-OXIDE; ISOMERIZATION; CHLORIDE; SALTS; TF2N;

D O I：

10.1016/j.poly.2015.08.015

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The bis(trifluoromethanesulfonyl)amide anion ([Tf2N](-)) has frequently been used as a component of ionic liquids. To investigate the effect of this anion and alkyl substituents on the thermal properties of macrocyclic metal complexes, cobalt(III) cyclam complexes [Co(cyclam)Cl-2][Tf2N] and its monoalkyl derivatives were prepared (cyclam = 1,4,8,11-tetraazacyclotetradecane). The corresponding hexafluorophosphate salts were also prepared and characterized. The salts with propyl and hexyl substituents melted at 171 degrees C and 153 degrees C, respectively, whereas other salts decomposed above 220 degrees C without melting. X-ray crystallography revealed the formation of intermolecular hydrogen bonds involving the NH hydrogens, which are responsible for the high melting points. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：275 / 279

页数：5

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