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- W1982339083 abstract "The ZnII compounds, μ-4,4′-ethylenedibenzoato-bis[acetatoaqua(dipyrido[3,2-a:2′,3′-c]phenazine)zinc(II)] dihydrate, [Zn2(C2H3O2)2(C16H10O4)(C18H10N4)2(H2O)2]·2H2O, (I), and catena-poly[[[aqua(pyrazino[2,3-f][1,10]phenanthroline)zinc(II)]-μ-4,4′-ethylenedibenzoato] N,N-dimethylformamide hemisolvate], {[Zn(C16H10O4)(C14H8N4)(H2O)]·0.5C3H7NO}n, (II), display very different structures because of the influence of the N-donor chelating ligands. In (I), the coordination geometry of each ZnII centre is distorted octahedral, involving two N atoms from one dipyrido[3,2-a:2′,3′-c]phenazine (L1) ligand, and four O atoms from one bis-chelating acetate anion, one bridging 4,4′-ethylenedibenzoate (bpea) ligand and one water molecule. Adjacent ZnII atoms are bridged by one bpea ligand to form a dinuclear complex, and the dinuclear species is centrosymmetric. Two types of π–π interactions between neighbouring dinuclear species have been found: one is between the L1 ligands, and the second is between the L1 and bpea ligands. In this way, an interesting two-dimensional supramolecular layer is formed. The layers are further linked by O—H⋯O and O—H⋯N hydrogen bonds, generating a three-dimensional supramolecular network. In (II), each ZnII atom is square-pyramidally coordinated by two N atoms from one pyrazino[2,3-f][1,10]phenanthroline ligand, three O atoms from two different bpea ligands and one water molecule. The two bpea dianions are situated across inversion centres. The bpea dianions bridge neighbouring ZnII centres, giving a one-dimensional chain structure in the ab plane. As in (I), two types of π–π interactions between neighbouring chains complete a three-dimensional supramolecular structure. The results indicate that the structures of the N-donor chelating ligands are the dominant factors determining the final supramolecular structures of the two compounds." @default.
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- W1982339083 date "2008-11-26" @default.
- W1982339083 modified "2023-09-26" @default.
- W1982339083 title "Influence of nitrogen-containing chelating ligands on the structures of zinc(II) 4,4′-ethylenedibenzoates" @default.
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- W1982339083 doi "https://doi.org/10.1107/s0108270108038328" @default.
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