The compleo (H 2 O) 4 (3,3’-azpy)(3,3’-azpy) 3 (PF 6 )2 n (3,3’-azpy =3,3’-azobispyridine)has been synthesized and characterized.The crystal(C 40 H 40 F 12 CoN 16 O 4 P 2 ,M r =1157.75)belongs to the triclinic sys...The compleo (H 2 O) 4 (3,3’-azpy)(3,3’-azpy) 3 (PF 6 )2 n (3,3’-azpy =3,3’-azobispyridine)has been synthesized and characterized.The crystal(C 40 H 40 F 12 CoN 16 O 4 P 2 ,M r =1157.75)belongs to the triclinic system,space groupP1with the following crystallographi c parameters:a=10.759(2),b=11.012(2),c=23.207(4)?;α=85.330(10),β=83.470(10),γ=69.770(10)°;V=2560.6(8)? 3 ,D c =1.502g·cm -3 ,μ(Mo Kα)=0.498mm -1 ,F(000)=1178,Z =2,and final R 1 =0.0469,w R 2 =0.1053for observed reflections 5549(I>2.00σ(I)).The X-ray analysis reveals that cob alt?cation coordination environment is a distorted octahedral geometry,the Co 2+ ion is coordinated by four oxygen ato ms of water in the equatorial plane,while the two nitrogen atoms of 3,3’-azpy occupy the axial positions.The complex forms a one-di mensional chain structure via3,3’-azpy bridging ligand.The one-dimension al chain forms three-dimensional network by hydrogen bonds andπ-πinter-actions.展开更多
At room temperature, the reaction of Cd(NO3)24H2O and anisic acid in an ethanol solution affords the cadmium (Ⅱ) complex [Cd(H2O)(CH3OC6H4COO)2]n. The crystal is of monoclinic, empirical formula C16H16O7Cd, Mr = 432....At room temperature, the reaction of Cd(NO3)24H2O and anisic acid in an ethanol solution affords the cadmium (Ⅱ) complex [Cd(H2O)(CH3OC6H4COO)2]n. The crystal is of monoclinic, empirical formula C16H16O7Cd, Mr = 432.69, space group C2/c with parameters: a = 34.211(2), b = 6.030(2), c = 7.611(3) ? = 95.619(5)? V = 1562.5(9) ?, Z = 4, Dc = 1.831 g/cm3, = 1.434 mm-1, F(000) = 856, R = 0.0215 and wR = 0.0456. 1121 reflections with I ≥ 2s(I) were considered to be observed. Each cadmium atom is seven-coordinate in a distorted pentagonal bipyramidal geometry. The Cd (Ⅱ) center is doubly bridged with the neighboring Cd centers by anisate ligands to form a four-membered ring with a repeating unit of CdOCdO-. The extended structure and hydrogen-bonding patterns displayed in the complex were studied.展开更多
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 charac...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 .展开更多
文摘The compleo (H 2 O) 4 (3,3’-azpy)(3,3’-azpy) 3 (PF 6 )2 n (3,3’-azpy =3,3’-azobispyridine)has been synthesized and characterized.The crystal(C 40 H 40 F 12 CoN 16 O 4 P 2 ,M r =1157.75)belongs to the triclinic system,space groupP1with the following crystallographi c parameters:a=10.759(2),b=11.012(2),c=23.207(4)?;α=85.330(10),β=83.470(10),γ=69.770(10)°;V=2560.6(8)? 3 ,D c =1.502g·cm -3 ,μ(Mo Kα)=0.498mm -1 ,F(000)=1178,Z =2,and final R 1 =0.0469,w R 2 =0.1053for observed reflections 5549(I>2.00σ(I)).The X-ray analysis reveals that cob alt?cation coordination environment is a distorted octahedral geometry,the Co 2+ ion is coordinated by four oxygen ato ms of water in the equatorial plane,while the two nitrogen atoms of 3,3’-azpy occupy the axial positions.The complex forms a one-di mensional chain structure via3,3’-azpy bridging ligand.The one-dimension al chain forms three-dimensional network by hydrogen bonds andπ-πinter-actions.
基金This work was supported by the National Natural Science Foundation of China (No: 29961002) Natural Science Foundation of Yunnan Province (No: 1999B0003M)
文摘At room temperature, the reaction of Cd(NO3)24H2O and anisic acid in an ethanol solution affords the cadmium (Ⅱ) complex [Cd(H2O)(CH3OC6H4COO)2]n. The crystal is of monoclinic, empirical formula C16H16O7Cd, Mr = 432.69, space group C2/c with parameters: a = 34.211(2), b = 6.030(2), c = 7.611(3) ? = 95.619(5)? V = 1562.5(9) ?, Z = 4, Dc = 1.831 g/cm3, = 1.434 mm-1, F(000) = 856, R = 0.0215 and wR = 0.0456. 1121 reflections with I ≥ 2s(I) were considered to be observed. Each cadmium atom is seven-coordinate in a distorted pentagonal bipyramidal geometry. The Cd (Ⅱ) center is doubly bridged with the neighboring Cd centers by anisate ligands to form a four-membered ring with a repeating unit of CdOCdO-. The extended structure and hydrogen-bonding patterns displayed in the complex were studied.
文摘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 .
