Crystal structure of the BaII-based CoII-containing one-dimensional coordination polymer poly[[aqua{μ4-2,2′-[(4,10-dimethyl-1,4,7,10-tetra­aza­cyclo­dodecane-1,7-di­yl)bis(methylidene)]bis­(4-oxo-4H-pyran-3-olato)}­perchloratocobaltbarium] perchlorate]

Acta Crystallographica Section E: Crystallographic Communications

Paoli, P.¹  Macedi, E.¹  Rossi, P.¹  Giorgi, L.²  Fusi, V.²  Formica, M.² 

[1] Department of Industrial Engineering, University of Firenze, via Santa Marta 3, I-50139 Firenze, Italy;Department of Pure and Applied Sciences, Lab of Supramolecular Chemistry, University of Urbino, via della Stazione, 4, I-61029 Urbino, Italy

关键词: CRYSTAL STRUCTURE;    COORDINATION POLYMER;    BARIUM;    COBALT;    MACROCYCLE;   

DOI  :  10.1107/S2056989017015638

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

The title compound, {[Ba{Co(H-2L1)}(ClO4)(H2O)]ClO4}n, L1 = 4,10-bis­[(3-hy­droxy-4-pyron-2-yl)meth­yl]-1,7-dimethyl-1,4,7,10-tetra­aza­cyclo­dodeca­ne, is a one-dimensional coordination polymer. The asymmetric unit consists of a {Ba[Co(H–2L1)](ClO4)(H2O)}+ cationic fragment and a non-coordinating ClO4− anion. In the neutral [Co(H–2L1)] moiety, the cobalt ion is hexa­coordinated in a trigonal–prismatic fashion by the surrounding N4O2 donor set. The Ba2+ ion is nine-coordinated and exhibits a distorted [BaO9] monocapped square-anti­prismatic geometry, the six oxygen atoms coming from three distinct [Co(H–2L1)] moieties, while the remaining three vertices are occupied by the oxygen atoms of a bidentate perchlorate anion and a water mol­ecule. A barium–μ2-oxygen motif develops along the a axis, connecting symmetry-related dinuclear BaII–CoII cationic fragments in a wave-like chain, forming a one-dimensional metal coordination polymer. Non-coordinating ClO4− anions are located in the space between the chains. Weak C—H⋯O hydrogen bonds involving both coordinating and non-coordinating perchlorate anions build the whole crystal architecture. To our knowledge, this is the first example of a macrocyclic ligand forming a BaII-based one-dimensional coordination polymer, containing CoII ions surrounded by a N4O2 donor set.

【 授权许可】

CC BY