A new three-dimensional (3D) lanthanide-aromatic monocarboxylate dimer supramolecular network [La2(DNBA)4(DMF)8][W6O19] (DNBA=3,5-dinitrobenzoate, DMF=dimethylfomamide) was synthesized using hexatungstate anion (W6O19...A new three-dimensional (3D) lanthanide-aromatic monocarboxylate dimer supramolecular network [La2(DNBA)4(DMF)8][W6O19] (DNBA=3,5-dinitrobenzoate, DMF=dimethylfomamide) was synthesized using hexatungstate anion (W6O192-) as template. The crystal structure of the title compound has been determined by single-crystal X-ray diffraction. It crystallizes in triclinic, space group P1 with a=1.334 54(18) nm, b=1.387 52(19) nm, c=1.426 06(19) nm, α=102.189(2)°, β=101.023(2)°, γ=116.349(2)°, V=2.187 2(5) nm3, Dc=2.364 g·cm-3, Z=1, F(000)=1 453.40. The single crystal structure reveals that two La髥 ions are bridged by four 3,5-dinitrobenzoate anions as asymmetrically bridging ligands, leading to dimeric cores, [La2(DNBA)4(DMF)8]2+; [La2(DNBA)4(DMF)8]2+ groups are joined together by π-π stacking interaction between the aromatic groups to form a two-dimensional grid-like network; the 2D supramolecular layers are further extended into 3D supramolecular network with a 1D box-like channels by hydrogen bonding interactions, in which hexatungstate polyanions reside. CCDC: 284694.展开更多
A novel 2-D supramolecular network formed by the Fe3O building unit through three hydrogen bonds [Fe3O(O2CCH2OC6H5)6(3H2O)]NO3·2H2O (1) are presented. The title complex crystallizes in monoclinic, space group P21...A novel 2-D supramolecular network formed by the Fe3O building unit through three hydrogen bonds [Fe3O(O2CCH2OC6H5)6(3H2O)]NO3·2H2O (1) are presented. The title complex crystallizes in monoclinic, space group P21/n, with a=1.709 3(2) nm, b=3.152 9(3) nm, c=1.021 2(2) nm, V=5.503 5(14) nm3, Z=4, D(calc)=1.500 g·cm-3, F(000)=2 564. Each Fe3O unit is connected by three NO3-ions and inversely each NO3-ion is surrounded by three Fe3O moieties. It shows that the well-known Fe3O unit is a potential three H-donors and may be able to be a three-connected linker. This complex displays weak anti-ferromagnetic coupling between Fe(Ⅲ) centers. Electrochemical experiments were carried out to obtain the character of its redox reaction. CCDC: 222011.展开更多
文摘A new three-dimensional (3D) lanthanide-aromatic monocarboxylate dimer supramolecular network [La2(DNBA)4(DMF)8][W6O19] (DNBA=3,5-dinitrobenzoate, DMF=dimethylfomamide) was synthesized using hexatungstate anion (W6O192-) as template. The crystal structure of the title compound has been determined by single-crystal X-ray diffraction. It crystallizes in triclinic, space group P1 with a=1.334 54(18) nm, b=1.387 52(19) nm, c=1.426 06(19) nm, α=102.189(2)°, β=101.023(2)°, γ=116.349(2)°, V=2.187 2(5) nm3, Dc=2.364 g·cm-3, Z=1, F(000)=1 453.40. The single crystal structure reveals that two La髥 ions are bridged by four 3,5-dinitrobenzoate anions as asymmetrically bridging ligands, leading to dimeric cores, [La2(DNBA)4(DMF)8]2+; [La2(DNBA)4(DMF)8]2+ groups are joined together by π-π stacking interaction between the aromatic groups to form a two-dimensional grid-like network; the 2D supramolecular layers are further extended into 3D supramolecular network with a 1D box-like channels by hydrogen bonding interactions, in which hexatungstate polyanions reside. CCDC: 284694.
文摘A novel 2-D supramolecular network formed by the Fe3O building unit through three hydrogen bonds [Fe3O(O2CCH2OC6H5)6(3H2O)]NO3·2H2O (1) are presented. The title complex crystallizes in monoclinic, space group P21/n, with a=1.709 3(2) nm, b=3.152 9(3) nm, c=1.021 2(2) nm, V=5.503 5(14) nm3, Z=4, D(calc)=1.500 g·cm-3, F(000)=2 564. Each Fe3O unit is connected by three NO3-ions and inversely each NO3-ion is surrounded by three Fe3O moieties. It shows that the well-known Fe3O unit is a potential three H-donors and may be able to be a three-connected linker. This complex displays weak anti-ferromagnetic coupling between Fe(Ⅲ) centers. Electrochemical experiments were carried out to obtain the character of its redox reaction. CCDC: 222011.
