title: Magnetic variation induced by structural transformation from coordination chains to layers upon dehydration.
abstract: 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.
authors.affiliation: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, PR China.
authors.forename: Xiao-Min
authors.initials: XM
authors.lastname: Liu
authors.forename: Bao-Ying
authors.initials: BY
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Xue
authors.forename: Lin-Hua
authors.initials: LH
authors.lastname: Xie
authors.forename: Wei-Xiong
authors.initials: WX
authors.lastname: Zhang
authors.forename: Xiao-Ning
authors.initials: XN
authors.lastname: Cheng
authors.forename: Xiao-Ming
authors.initials: XM
authors.lastname: Chen