The crystal structure of the title complex, [K2(5-nbdc)2Cd(Ⅱ)·imH·H2O]∞ (5-nbdc=5-nitro-1,3-benzenedicarbonate, imH=imidazole) has been determined by X-ray diffraction analysis. The crystal data are: tetra...The crystal structure of the title complex, [K2(5-nbdc)2Cd(Ⅱ)·imH·H2O]∞ (5-nbdc=5-nitro-1,3-benzenedicarbonate, imH=imidazole) has been determined by X-ray diffraction analysis. The crystal data are: tetragonal, space group P41, Mr=694.93 for CdC19H12N4O13K2, a=1.018 6(10) nm, b=1.018 6(10) nm, c=2.436 7(5) nm; Z=4, V=2.528 2(6) nm3, F(000)=1 376, Dc=1.826 Mg·m-3, μ=1.267 mm-1. The title polymeric complex exhibits a two-dimensional framework, in which adjacent Cd(Ⅱ) ions are bridged by μ-O4-5-nitro-1,3-benzenedicarbonate groups forming one-dimensional chains that are further linked by μ-O3-5-nitro-1,3-benzenedicarbonate groups into two-dimensional anion rectangle sheets with large 32-membered rings. The strong π-π stacks of the benzene rings link these adjacent sheets into a three-dimensional van der Waals network. CCDC: 245527.展开更多
The title complex {[Ni(TCB)2/2(Him)2(H2O)2]· 6H2O}n(where TCB = 1,2,4,5 benzentetracarboxylic anion, Him=imidazole) has been synthesized in aqueous solution. The <IMG SRC="IMAGE/12180050.JPG" HEIGHT=...The title complex {[Ni(TCB)2/2(Him)2(H2O)2]· 6H2O}n(where TCB = 1,2,4,5 benzentetracarboxylic anion, Him=imidazole) has been synthesized in aqueous solution. The <IMG SRC="IMAGE/12180050.JPG" HEIGHT=11 WIDTH=12>crystal structure has been determined by single crystal X ray diffraction method. It crystallizes in the triclinic system, space group (# 2) with a=1.0661(4)nm,b=1.1175(3)nm,c=1.0062(4)nm,α =94.03(3)° ,β = 110.81(3)° ,γ =114.71(2)° ,V=0.9837(7)nm3,Z=1,F(000)=478,DC=1.553g· cm- 3,F.W.=920.11,u=10.41cm- 1,R=0.040,RW=0.051.In this compound, one of the nickel atom is coordinated by two oxygen atoms from TCB, two oxygen atoms from two water molecules and two nitrogen atoms from two imidazole molecules in a trans fashion to complete an octahedron; whereas the other is ligated by four nitrogen atoms from four imidazole molecules to form a planar square geometry.展开更多
A novel cadmium(Ⅱ) isothiocyanate complex [Cd(N-MeIM)2(SCN)2]n (N-MeIM=N-methylimidazole) has been prepared and characterized by spectroscopic analysis and crystallographic method. The title compound crystallize in t...A novel cadmium(Ⅱ) isothiocyanate complex [Cd(N-MeIM)2(SCN)2]n (N-MeIM=N-methylimidazole) has been prepared and characterized by spectroscopic analysis and crystallographic method. The title compound crystallize in the Triclinic system, space group P1, with lattice parameters a=0.589 50(12) nm, b=0.785 70(16) nm, c=0.882 00(18) nm, α=110.98(3)°, β=106.49(3)°, γ=95.08(3)°, and Z=1. The title compound exhibits an infinite chain structure in which each pair of Cd atoms is bridged by two η-1,3-SCN- groups. The unique Cd atom lies on an inversion centre and the coordination sphere is completed by two N-MeIM N atoms to form a CdS2N4 octahedron. The polymeric chains are further extended into three-dimensional network via π...π stackings interactions between the imidazole rings. The cyclic voltammetry behaviors of the compound on glass carbon electrode showed a typical irreversible process. CCDC: 265283.展开更多
A coordination polymer,namely [Fe(DPPZ)(dipic)]n(1)(DPPZ =dipyrido [3,2-a:2',3'-c]phenazine and H2dipic=pyridine-2,6-dicarboxylic acid),has been obtained by using hydrothermal synthesis method.The crystal stru...A coordination polymer,namely [Fe(DPPZ)(dipic)]n(1)(DPPZ =dipyrido [3,2-a:2',3'-c]phenazine and H2dipic=pyridine-2,6-dicarboxylic acid),has been obtained by using hydrothermal synthesis method.The crystal structure was determined by X-ray single crystal structure analysis with the following data:Monoclinic,P21/c,a= 0.794 95(16) nm,b=3.601 1(7) nm,c=0.734 32(15) nm,β=106.07(3)°,V=2.020 0(7) nm3,Z=4,Mr=503.25,Dc=1.655 g·cm-3,F(000)=1 024,μ(Mo Kα)=0.795 mm-1,R=0.038 5 and wR=0.081 0.Complex 1 has octahedral coordination geometry and forms 1D zigzag coordination chains that organize into an unusual 3D supramolecular motif through noncovalent bonds,such as π-π stacking interactions and C-H … O hydrogen bonds.The result of TG analysis indicates that the title complex is stable till 290 ℃.展开更多
文摘The crystal structure of the title complex, [K2(5-nbdc)2Cd(Ⅱ)·imH·H2O]∞ (5-nbdc=5-nitro-1,3-benzenedicarbonate, imH=imidazole) has been determined by X-ray diffraction analysis. The crystal data are: tetragonal, space group P41, Mr=694.93 for CdC19H12N4O13K2, a=1.018 6(10) nm, b=1.018 6(10) nm, c=2.436 7(5) nm; Z=4, V=2.528 2(6) nm3, F(000)=1 376, Dc=1.826 Mg·m-3, μ=1.267 mm-1. The title polymeric complex exhibits a two-dimensional framework, in which adjacent Cd(Ⅱ) ions are bridged by μ-O4-5-nitro-1,3-benzenedicarbonate groups forming one-dimensional chains that are further linked by μ-O3-5-nitro-1,3-benzenedicarbonate groups into two-dimensional anion rectangle sheets with large 32-membered rings. The strong π-π stacks of the benzene rings link these adjacent sheets into a three-dimensional van der Waals network. CCDC: 245527.
文摘The title complex {[Ni(TCB)2/2(Him)2(H2O)2]· 6H2O}n(where TCB = 1,2,4,5 benzentetracarboxylic anion, Him=imidazole) has been synthesized in aqueous solution. The <IMG SRC="IMAGE/12180050.JPG" HEIGHT=11 WIDTH=12>crystal structure has been determined by single crystal X ray diffraction method. It crystallizes in the triclinic system, space group (# 2) with a=1.0661(4)nm,b=1.1175(3)nm,c=1.0062(4)nm,α =94.03(3)° ,β = 110.81(3)° ,γ =114.71(2)° ,V=0.9837(7)nm3,Z=1,F(000)=478,DC=1.553g· cm- 3,F.W.=920.11,u=10.41cm- 1,R=0.040,RW=0.051.In this compound, one of the nickel atom is coordinated by two oxygen atoms from TCB, two oxygen atoms from two water molecules and two nitrogen atoms from two imidazole molecules in a trans fashion to complete an octahedron; whereas the other is ligated by four nitrogen atoms from four imidazole molecules to form a planar square geometry.
文摘A novel cadmium(Ⅱ) isothiocyanate complex [Cd(N-MeIM)2(SCN)2]n (N-MeIM=N-methylimidazole) has been prepared and characterized by spectroscopic analysis and crystallographic method. The title compound crystallize in the Triclinic system, space group P1, with lattice parameters a=0.589 50(12) nm, b=0.785 70(16) nm, c=0.882 00(18) nm, α=110.98(3)°, β=106.49(3)°, γ=95.08(3)°, and Z=1. The title compound exhibits an infinite chain structure in which each pair of Cd atoms is bridged by two η-1,3-SCN- groups. The unique Cd atom lies on an inversion centre and the coordination sphere is completed by two N-MeIM N atoms to form a CdS2N4 octahedron. The polymeric chains are further extended into three-dimensional network via π...π stackings interactions between the imidazole rings. The cyclic voltammetry behaviors of the compound on glass carbon electrode showed a typical irreversible process. CCDC: 265283.
文摘A coordination polymer,namely [Fe(DPPZ)(dipic)]n(1)(DPPZ =dipyrido [3,2-a:2',3'-c]phenazine and H2dipic=pyridine-2,6-dicarboxylic acid),has been obtained by using hydrothermal synthesis method.The crystal structure was determined by X-ray single crystal structure analysis with the following data:Monoclinic,P21/c,a= 0.794 95(16) nm,b=3.601 1(7) nm,c=0.734 32(15) nm,β=106.07(3)°,V=2.020 0(7) nm3,Z=4,Mr=503.25,Dc=1.655 g·cm-3,F(000)=1 024,μ(Mo Kα)=0.795 mm-1,R=0.038 5 and wR=0.081 0.Complex 1 has octahedral coordination geometry and forms 1D zigzag coordination chains that organize into an unusual 3D supramolecular motif through noncovalent bonds,such as π-π stacking interactions and C-H … O hydrogen bonds.The result of TG analysis indicates that the title complex is stable till 290 ℃.
