摘要
Hydrothermal reactions of 5-（pyridin-2-yl-methyl）aminoisophthalic acid（H2paip） with Mn（OAc）2·4H2O and Cu（NO3）2·3H2O produced two 2D complexes, [Mn（paip）]n·nH2O（1） and [Cu（paip）（H2O）]n（2）. In complex 1, paip serves as a μ4-bridge, and its two carboxylate groups in μ2,η2-bridging and chelating modes connect Mn（Ⅱ） into 1D chains, which are further extended into a 2D layer through coordination of two chelating nitrogen atoms. However, paip in complex 2 acts as a μ3-bridge to link Cu（Ⅱ） into a 2D layer, in which two carboxylate groups function in a monodentate mode, and hydrogen bonds between the coordinated water and carboxylate oxygen atoms further extend the 2D layers into a 3D supramolecular network. The frameworks of complexes 1 and 2 are stable up to 470 and 250 ℃, respectively. Magnetic measurement shows that complex 2 possesses a weak antiferromagnetic interaction.
Hydrothermal reactions of 5-（pyridin-2-yl-methyl）aminoisophthalic acid（H2paip） with Mn（OAc）2·4H2O and Cu（NO3）2·3H2O produced two 2D complexes, [Mn（paip）]n·nH2O（1） and [Cu（paip）（H2O）]n（2）. In complex 1, paip serves as a μ4-bridge, and its two carboxylate groups in μ2,η2-bridging and chelating modes connect Mn（Ⅱ） into 1D chains, which are further extended into a 2D layer through coordination of two chelating nitrogen atoms. However, paip in complex 2 acts as a μ3-bridge to link Cu（Ⅱ） into a 2D layer, in which two carboxylate groups function in a monodentate mode, and hydrogen bonds between the coordinated water and carboxylate oxygen atoms further extend the 2D layers into a 3D supramolecular network. The frameworks of complexes 1 and 2 are stable up to 470 and 250 ℃, respectively. Magnetic measurement shows that complex 2 possesses a weak antiferromagnetic interaction.
基金
supported by the National Natural Science Foundation of China(21001025)
the Natural Science Foundation of Fujian Province(2010J05017)
Provincial Education Department of Fujian(JA12070)
