Hydrogen-bonded three-dimensional networks encapsulating one-dimensional covalent chains: [Cu(3-ampy)(H2O)(4)](SO4)center dot(H2O)(3-ampy 3=aminopyridine)

作者：Pan Wan Long; Huang Kun Lin; Xu Yan Qing; Hu Chang Wen^*

来源：Chinese Journal of Structural Chemistry, 2007, 26(7): 822-826.

• three-dimension
• covalent chains
• 3-aminopyridine
• hydrogen bonds
• pi-pi stacking

A three-dimensional complex [Cu(3-ampy)(H2O)(4)](SO4)center dot(H2O) (3-ampy = 3-aminopyridine) has been synthesized. Crystallographic data: C5H16CuN2O9S, M, = 343.80, triclinic, space group P (1) over bar, a = 7.675(2), b = 8.225(3), c = 10.845(3) angstrom, alpha= 86.996(4), beta = 76.292(4), gamma= 68.890(4)degrees, V = 620.0(3) angstrom(3), Z = 2, D-c = 1.841 g/cm(3), F(000) = 354 and mu = 1.971 mm(-1). The structure was refined to R = 0.0269 and wR = 0.0659 for 1838 observed reflections (I > 2 sigma(I)). The structure consists of [Cu(3-ampy)(H2O)(4)](2+)cations, SO42- anions and lattice water molecules. 3-Ampy acting as a bidentate bridging ligand generates a 1D covalent chain. A supramolecular 2D framework is formed through pi-pi stacking of pyridine rings. The lattice water molecules and SO42- anions are located between the adjacent 2D frameworks. The hydrogen bonding interactions from lattice water molecules and SO42- anions to coordinate water extend the 2D framework into a 3D network.

• 出版日期2007
• 单位重庆师范大学; 北京理工大学