Novel one- and two-dimensional ZnII coordination polymers based on a versatile 3,6-bis(pyridin-4-yl)phenanthrene-9,10-dione ligand

作者：Jin, Guoxia^*; Wang, Jia; Wu, Qidi; Han, Zheng; Ma, Jianping

来源：Acta Crystallographica Section C-Structural Chemistry, 2015, 71(12): 1089-+.

DOI：10.1107/S2053229615022159

• one-dimensional coordination polymer
• two-dimensional coordination polymer
• zinc(II)
• hydrogen bonds
• helical chains
• phenanthrene-9,10-dione
• crystal structure
• triangular assembly

Two new Zn-II coordination polymers, namely, catena-poly[[dibromidozinc(II)]-mu--[3,6-bis(pyridin-4-yl)phenanthrene-9,10-dione-kappa N-2:N']], [ZnBr2(C24H14N2O2)](n), (1), and poly[[bromido[mu(3)-10-hydroxy-3,6-bis(pyridin-4-yl) phenanthren-9-olato-kappa N-3:N':O-9]zinc(II)] hemihydrate], {[ZnBr(C24H15N2O2)]center dot 0.5H(2)O}(n), (2), have been synthesized through hydrothermal reaction of ZnBr2 and a 60 degrees angular phenanthrenedione-based linker, i.e. 3,6-bis(pyridin-4-yl) phenanthrene-9,10-dione, in different solvent systems. Single-crystal analysis reveals that polymer (1) features one-dimensional zigzag chains connected by weak C-H center dot center dot center dot pi and pi-pi interactions to form a two-dimensional network. The two-dimensional networks are further stacked in an ABAB fashion along the a axis through C-H center dot center dot center dot O hydrogen bonds. Layers A and B comprise left-and right-handed helical chains, respectively. Coordination polymer (2) displays a wave-like two-dimensional layered structure with helical chains. In this compound, there are two opposite helical -Zn-HL- chains [HL is 10-hydroxy-3,6-bis(pyridin-4-yl)phenanthren-9-olate] in adjacent layers. The layers are packed in an ABAB sequence and are further connected through O-H center dot center dot center dot Br and O-H center dot center dot center dot O hydrogen-bond interactions to form a three-dimensional framework. In (1) and (2), the mutidentate L and HL ligands exhibits different coordination modes.

• 出版日期2015-12
• 单位山东师范大学