title: Two water-bridged cobalt(II) chains with isomeric naphthoate spacers: from metamagnetic to single-chain magnetic behaviour.
abstract: The crystal structures and magnetic behaviours of two water-bridged one-dimensional (1D) cobalt(II) chains with different isomeric naphthoate (na(-)) terminals, [Co(H2O)3(2-na)2]n (1) and {[Co(H2O)3(1-na)2]·2H2O}n (2), were reported to investigate the effect of interchain distance on their magnetic properties. Complex 1 with trans-2-na(-) blocks and dense interchain separation exhibits a metamagnetic transition from antiferromagnetic ordering to a saturated paramagnetic phase. By contrast, complex 2 possessing cis-arranged 1-na(-) spacers and good interchain isolation shows unusual single-chain magnetic behavior under a zero dc field. Thus, completely different interchain packing by isomeric naphthoate ligands governs the ratio of intra- to inter-chain magnetic interactions and further results in different magnetic phenomena, which provide significant magnetostructural information on 1D magnetic systems.
authors.affiliation: College of Chemistry, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, P. R. China. encui_yang@163.com xiaojun_zhao15@163.com.
authors.forename: Zhong-Yi
authors.initials: ZY
authors.lastname: Liu
authors.affiliation: College of Chemistry, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, P. R. China. encui_yang@163.com xiaojun_zhao15@163.com.
authors.forename: Yan-Fei
authors.initials: YF
authors.lastname: Xia
authors.affiliation: College of Chemistry, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, P. R. China. encui_yang@163.com xiaojun_zhao15@163.com.
authors.forename: Jiao
authors.initials: J
authors.lastname: Jiao
authors.affiliation: College of Chemistry, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, P. R. China. encui_yang@163.com xiaojun_zhao15@163.com.
authors.forename: En-Cui
authors.initials: EC
authors.lastname: Yang
authors.affiliation: College of Chemistry, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, P. R. China. encui_yang@163.com xiaojun_zhao15@163.com and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China.
authors.forename: Xiao-Jun
authors.initials: XJ
authors.lastname: Zhao