A novel coordination polymer [Ni（PDC）(H2O)2] was synthesized under solvothermal conditions and characterized by means of singlecrystal X-ray diffraction（XRD） analysis,elemental analysis,IR analysis,TG（analysis.） Crystal data for(C7H7NO6Ni) were obtained,（i.e.,） monoclinic(P21/c（No.14）,)（a=）（0.720 2（3）） nm,b=0.917 2（4） nm,c=0.128 79（4） nm,β=90.46（3）°,Z=4.The compound was a 2D layered coordination polymer with helical chains.In the compound,there are two helical Ni-O-C and Ni-pdc chains in one layer,and the opposite orientation of the helical chains in the adjacent layers.The layers are connected via hydrogen bonds into 3D supramolecular framework.
The title compound,Cd5（BTC）4(H2O)8·6H2O（BTC=1,3,5-benzenetricarboxylate） was synthesized under mild conditions,and its crystal structure was determined by means of single crystal X-ray diffraction.The compound crystallizes in the monoclinic system and belongs to space group P21/c with a=1.022 6（2） nm, b=1.081 4（2） nm,c=2.987 6（6） nm,β=99.437（3） °,V=3.259 1（11） nm3,Z=2,Dc=1.645 g/cm3,Mr=807.23,μ=1.691 mm-1,F（000）=1 544,GOF=1.082,R=0.059 2,wR=0.187 7. Its structure revealed that Cd1 and Cd2 centers are firstly linked with BTC to form wave-like layers,and then the octahedral coordination geometries of Cd3 centers connect the neighboring above layers to construct the 3D framework of Cd5（BTC）4（H2O）8·6H2O having 'Z'-like shaped channels with the greatest dimensions about 2.6 nm viewed along the direction.
Nano-composite of hydroxyapatite/lysozyme with a size of 100 nm was synthesized in situ by chemical wet method,and characterized by nitrongen gas adsorption method,IR,SEM and UV-Vis spectroscopic techniques.In comparison with that synthesized by the dipping adsorbing method,the composite synthesized by wet method has much more content and activity of lysozyme.These results suggest the composite can be used as a controlling carrier of releasing lysozyme.
A\} novel two-dimensional coordination polymer Zn 3(PTC) 2(H 2O) 8·4H 2O was formed by \{Zn(CH 3COO) 2·\}2H 2O and 2-pyridine-1,3,5-tricarboxylate(H 3PTC) under the hydrothermal condition at 417 K and characterized by fluorescence. The crystal structure of the compound was determined by single-crystal X-ray diffraction analyses. The six-coordinated Zinc(Ⅱ) center displays an octahedral geometry . The crystal is monoclinic and space group is P2(1)/c with a=0.722 70(14) nm, b= 1.866 7(4) nm , \{c=\}1.072 6(3) nm, α=90°, β=103.198(19)°, γ=90°, V=1.408 7(6) nm 3, Z=4, D c= 2.474 Mg/m 3, M r=828.536, μ=3.099 mm -1 , F(000)=1 060, GOF=0.892, R=0.061 3, wR= 0.133 9 .
A new metal-organic polymer Mn3（BTC）2(H2O)9·(H2O) was synthesized by reaction of the metal ions Mn（Ⅱ） with 1,3,5-benzenetricarboxylic acid(H3BTC) in a mixed solution of DMF/C2H5OH/(H2O) and crystallized.The crystal belongs to monoclinic system,space group C2/c with a=1.901 4（4） nm,b=0.740 23（15） nm,c=2.044 9（4） nm,β=97.18（3）°,V=2.855 5（10） nm3,Z=4,Dc=1.766（g/cm3）,μ（Mo Kα）=1.401 mm-1,R[I>2σ（I）]=0.072 7,wR=0.235 1 for 2 419 independent reflections with goodness-of-fit 1.046. Its structure possesses bilayer architectures constructed from Mn ions linked infinite Mn（BTC） chains which were build up from BTC ligand as the "T-shape" module and Mn as the linear module.The hydrogen-bond and π-π stacking interactions between bilayers make them three-dimensional channel-like interpenetrated frameworks.
AlPO 4 5 molecular sieve with an orthorhombic phase was studied by in situ variable temperature infrared spectroscopy. The reversible phase transition from the orthorhombic into the hexagonal phase was found at about 120 ℃. [WT5HZ]
