MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, PR China.
Dalton Trans. 2012 Nov 28;41(44):13741-6. doi: 10.1039/c2dt31436c. Epub 2012 Oct 9.
The reaction of CoBr(2), 1,2-di(4H-1,2,4-triazol-4-yl)diazene (bta) and KSCN yielded a one-dimensional coordination polymer [Co(SCN)(2)(bta)(H(2)O)(2)] with water molecules coordinated to the metal ions. After dehydration at 100 °C, the compound transformed into a layered coordination polymer [Co(SCN)(2)(bta)], whose structure was determined by powder X-ray diffraction based on the single-crystal structure of another layered coordination polymer [Cd(SCN)(2)(bta)]. Interestingly, a magnetic variation from a simple paramagnet to an antiferromagnetic ordered phase of a single-chain-magnet that exhibits both metamagnetic behaviour and slow magnetic relaxation was observed upon the dehydration process.
CoBr(2)、1,2-二(4H-1,2,4-三唑-4-基)二氮烯(bta)和 KSCN 的反应生成了一个一维配位聚合物[Co(SCN)(2)(bta)(H(2)O)(2)]，其中水分子与金属离子配位。在 100°C 下脱水后，该化合物转化为层状配位聚合物[Co(SCN)(2)(bta)]，其结构通过基于另一个层状配位聚合物[Cd(SCN)(2)(bta)]的单晶结构的粉末 X 射线衍射确定。有趣的是，在脱水过程中观察到从简单的顺磁体到单链磁体的反铁磁有序相的磁变化，该单链磁体表现出顺磁行为和缓慢的磁弛豫。
