In Situ Hydrothermal Synthesis of a Mononuclear Copper（Ⅱ） Complex： Cu（H2SIP-O）（bpy）（H2O） （H4SIP-O = 4-Hydroxyl-5-sulfoisophthalic Acid）

The mononuclear complex, Cu（H2SIP-O）（bpy）（H2O） （H4SIP-O = 4-hydroxyl- 5-sulfoisophthalic acid and bpy = 2,2＇-dipyridyl）, has been synthesized by the hydrothermal reaction of Cu（OH）2 with NaH2SIP and bpy at 160 ℃, and characterized by single-crystal X-ray diffraction, elemental analysis and IR spectrum. The new ligand 4-hydroxyl-5-sulfoisophthalic acid derived from 5-sulfoisophthalic acid ligand under an in situ hydrothermal condition. The crystal of the complex crystallizes in a triclinic system, space group P1, with a = 7.757（4）, b = 10.663（6）, c = 11.727（7）A, α = 94.272（4）, β = 104.067（7）, γ = 97.400（7）°, V= 927.4（9）A^3, Z = 2, C18H14N2O9SCu, Mr= 497.93, Dc= 1.783 g/cm^3,μ = 1.350 mm^-1, F（000） = 506, the final R = 0.0518 and wR = 0.1513 for 4180 observed reflections with I 〉 2σ（I）. The central Cu（II） ion is five-coordinated by two oxygen atoms from the H2SIP-O^2- ligand and two nitrogen atoms of bpy ligand in a distorted square-planar geometry as well as a water oxygen atom in the apical position to complete a distorted square-pyramidal coordination geometry. The mononuclear copper molecules are linked by hydrogen bonds between coordinated water molecules and sulfonate groups to form a one-dimensional double-chain structure. The chains are further held together through extensive π-π stacking interactions between the aromatic rings to form a three- dimensional supramolecular structure.

In Situ Hydrothermal Synthesis of a Mononuclear Copper(Ⅱ)Complex :Cu(H2SIP-O)(bpy)(H2O) (H4SIP-O=4-Hydroxyl-5-sulfoisophthalic Acid)

The mononuclcar complex.Cu(H2SIP-O)(bpy)(H20)(I-14SIP-O=4-hydroxyl-5-sulfoisophthalic acid and bpy=2,2'-dipyridyl).has been synthesized by the hydrothermal reaction of Cu(OH)2 with NaH2SIP and bpy at 160℃.and characterized by single-crystal X-ray diffraction,elemental analysis and IR spectrum.The new ligand 4-hydroxyl-5-sulfoisophthalie acid derived from 5-sulfoisophthalic acid ligand under all in situ hydrothermal condition.The crystal of the complex crystallizes in a triclinic system,space group Pi,with a=7.757(4),b=10.663(6),c=1 1.727(7)(A),a=94.272(4),β=104.067(7),),γ=97.400(7)°,V=927.4(9)(A)3,Z=2,C08H14N2O9SCu,Mr=497.93,Dc=1.783 g/cm3,μ=1.350 mm-1,F(000)=506,the final R=0.0518 and wR=0.1513 for 4180 observed reflections with I>2σ(I).The central Cu(II)ion is five-coordinated by two oxygen atoms from the H2SIP-O2-ligand and two nitrogen atoms of bpy ligand in a distorted square-planar geometry as well as a water oxygen atom in the apical position to complete a distorted square-pyramidal coordination geometry.The mononuclear copper molecules are linked by hydrogen bonds between coordinated water molecules and sulfonate groups to form a one-dimensional double-chain structure.The chains are further held together through extensive π-π stacking interactions between the aromatic rings to form a threedimensional supramolecular structure.