By hydrothermal synthesis, a manganese（H） tetracarboxylate [Mn（2,2′-bipyridi- ne）（btec）0.5（HEO）]En （H4btec = 1,2,4,5-benzenetetracarboxylic acid） was obtained and characterized by single-crystal X-ray diffr...By hydrothermal synthesis, a manganese（H） tetracarboxylate [Mn（2,2′-bipyridi- ne）（btec）0.5（HEO）]En （H4btec = 1,2,4,5-benzenetetracarboxylic acid） was obtained and characterized by single-crystal X-ray diffraction, IR, elemental analysis and thermogravimetric analysis. It crystallizes in triclinic, space group P1, with a = 7.721（4）, b = 8.905（5）, c = 10.712（6）A, a = 80.899（8）, β = 70.371（8）, y = 78.201（8）°, Z = 2, V= 675.8（7）A3, Mr= 354.20, De= 1.741 g/cm^3,μ = 1.007 mm^-1, F（000） = 360, S = 0.956, （△/σ）max = 0.000, the final R = 0.0490 and wR = 0.1262. This compound presents an infinite 1D polymer featuring a double-chain structure. The Mn（Ⅱ） ion is five-coordinated. The four carboxylate groups of btec4- are all deprotonated and coordinated to four Mn atoms in a monodentate fashion, forming a 1D double chain structure with a cavity. Such chains are interconnected by π-π stacking interactions into 2D layers which are further interlinked into a supramolecular structure by hydrogen bonds.展开更多
基金This work was supported by Jiangxi provincial department of education’s item of Science and Technology (No. [2007]316)
文摘By hydrothermal synthesis, a manganese（H） tetracarboxylate [Mn（2,2′-bipyridi- ne）（btec）0.5（HEO）]En （H4btec = 1,2,4,5-benzenetetracarboxylic acid） was obtained and characterized by single-crystal X-ray diffraction, IR, elemental analysis and thermogravimetric analysis. It crystallizes in triclinic, space group P1, with a = 7.721（4）, b = 8.905（5）, c = 10.712（6）A, a = 80.899（8）, β = 70.371（8）, y = 78.201（8）°, Z = 2, V= 675.8（7）A3, Mr= 354.20, De= 1.741 g/cm^3,μ = 1.007 mm^-1, F（000） = 360, S = 0.956, （△/σ）max = 0.000, the final R = 0.0490 and wR = 0.1262. This compound presents an infinite 1D polymer featuring a double-chain structure. The Mn（Ⅱ） ion is five-coordinated. The four carboxylate groups of btec4- are all deprotonated and coordinated to four Mn atoms in a monodentate fashion, forming a 1D double chain structure with a cavity. Such chains are interconnected by π-π stacking interactions into 2D layers which are further interlinked into a supramolecular structure by hydrogen bonds.
