title: Reversible color changes of metal(II)-N(1),N(3)-di(pyridin-4-yl)isophthalamide complexes via desolvation and solvation.
abstract: Four metal(ii)-N(1),N(3)-di(pyridin-4-yl)isophthalamide (L) complexes formulated as [Cu(L)(2)Cl(2)]·5.5H(2)O (1), [Ni(L)(2)Cl(2)]·5.5H(2)O (2), [Co(L)(m-BDC)]·DMF (3) (m-BDC = 1, 3-benzenedicarboxylic dianion) and [Cd(2)(L)(2)(m-BDC)(2)]·DMF·0.2H(2)O (4) have been solvothermally synthesized and structurally characterized by single-crystal X-ray diffractions. Complexes 1 and 2 are isomorphous, both of them exhibit chain-like frameworks, in which ligand L shows a cis-conformation. Complex 3 displays a three dimensional architecture constructed by ligand L with intermediate-conformation linking different chains. Complex 4 shows a corrugated two dimensional layer in which ligand L with trans-conformation and m-BDC act as bridging groups linking different Cd(ii) centers. The four complexes all possess stable host frameworks, and complexes 1-3 show reversible color changes via desolvation and solvation.
authors.affiliation: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China.
authors.forename: Yun
authors.initials: Y
authors.lastname: Gong
authors.forename: Yuchao
authors.initials: Y
authors.lastname: Zhou
authors.forename: Jinghua
authors.initials: J
authors.lastname: Li
authors.forename: Rong
authors.initials: R
authors.lastname: Cao
authors.forename: Jianbo
authors.initials: J
authors.lastname: Qin
authors.forename: Jian
authors.initials: J
authors.lastname: Li
mesh_terms: D003116:Color; D018360:Crystallography, X-Ray; D008958:Models, Molecular; D008968:Molecular Conformation; D009942:Organometallic Compounds / Q000737:chemistry*; D011725:Pyridines / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D013237:Stereoisomerism
chemical_list: D009942:Organometallic Compounds; D011725:Pyridines; D012997:Solvents