A two-dimensional（2D）coordination polymer{[Cd（bdc）（dpb）]·H2O}n（1）has been prepared by solvothermal reaction of 1,3-dipyridyl benzene（1,3-dpb）with deprotonated1,4-benzenedicarboxylate（H2bdc）,and was ch...A two-dimensional（2D）coordination polymer{[Cd（bdc）（dpb）]·H2O}n（1）has been prepared by solvothermal reaction of 1,3-dipyridyl benzene（1,3-dpb）with deprotonated1,4-benzenedicarboxylate（H2bdc）,and was characterized by elemental analysis,IR spectroscopy,and X-ray single-crystal diffraction.It crystallizes in the monoclinic system,space group C2/c with a=15.1839（12）,b=20.7585（17）,c=7.2989（6）,β=117.3450（10）°,V=2043.5（3）3,C24H18N2O5Cd,Mr=526.81,Dc=1.712 g/cm3,F（000）=1056.0,μ=1.110 mm-1and Z=4.The neighboring Cd（II）ions link the bdc2-anions and 1,3-dpb to form an infinite 2D sheet,and such two2D sheets are interlocked with each other to form a 2D→2D sheet.Two groups of interlocked sheets are further linked together by intermolecularπ···πinteraction,giving a 3D supramolecular network.In addition,the fluorescence property of 1 was also studied.展开更多
A new coordination complex, [Ag(IIMB)N 3], was prepared by self-assembly of asymmetric ligand 1-(1-imidazolyl)-4-(imidazol-1-ylmethyl)benzene(IIMB) with [Ag(NH 3) 2]N 3. The crystal structural analysis indicates that ...A new coordination complex, [Ag(IIMB)N 3], was prepared by self-assembly of asymmetric ligand 1-(1-imidazolyl)-4-(imidazol-1-ylmethyl)benzene(IIMB) with [Ag(NH 3) 2]N 3. The crystal structural analysis indicates that the structure of the complex contains fifty-two-membered macrometallacyclic rings, and the complex crystallizes in monoclinic system, space group of P2 1/c with a=0.739 8(1) nm, {b=}1.045 1(1) nm, c=1.812 4(2)nm, β=91.65(1)°, V=1.400 7(3) nm3, Z=4, D c=1.774 g/cm3, {F(000)=}744, R=0.050 5, wR=0.084 0. It is notable that the azide ion bridges two silver(Ⅰ) atoms in end-on fashion.展开更多
The title compound, [Cu（phen）2（SO4）（H2O）]·0.5C4H4O4·7H2O （phen = 1,10-phe-nan throline and C4H4O4 = fumaric acid）, has been synthesized and characterized by single-crystal X-ray diffraction. The crys...The title compound, [Cu（phen）2（SO4）（H2O）]·0.5C4H4O4·7H2O （phen = 1,10-phe-nan throline and C4H4O4 = fumaric acid）, has been synthesized and characterized by single-crystal X-ray diffraction. The crystal is of triclinic, space group P1^- with a = 11.4827（2）, b = 11.9086（2）, c = 13.77350（10） A, α = 80.6830（10）, β = 66.6480（10）, γ = 64.048000）°, V = 1554.63（4） A^3, Mr = 722.17, Z = 2, Dc = 1.543 g/cm^3,μ = 0.845 mm^-1, F（000） = 750, R = 0.0349 and wR = 0.0837 for 4754 observed reflections （1 〉 2σ（I））. The compound contains a six-coordinated copper（Ⅱ） center, which is surround by four N atoms of two phen ligands （Cu-N distances in the range of 1.997（2）- 2.225（2） A）, one sulfate O atom （Cu-O = 2.0037（17） A） and one water O atom （Cu-O（Sw） = 2.719（2） A,） in a distorted octahedral geometry. Extensive hydrogen-bonding interactions are involved in water molecules, ligated sulfate anions and fumaric acid molecules. In addition, π-π interactions via aromatic nitrogen-containing ligands are also discussed. The combination of non-covalent interactions leads to the formation of a 3-D network structure.展开更多
Two supramolecular compounds [Cu（imz）2][Cu（phen）（imz）]2{[Cu（phen）]2[PMo6^VIMo6^VV2^IVO42]}（1） and [Co2（2,2＇-bpy）4（C2O4）][Co（2,2＇-bpy）3][PMo7^VIMo5^VV2^IVO42]（2,2＇-bpy）0.5.H2O（2）（phen=1,10＇-phe...Two supramolecular compounds [Cu（imz）2][Cu（phen）（imz）]2{[Cu（phen）]2[PMo6^VIMo6^VV2^IVO42]}（1） and [Co2（2,2＇-bpy）4（C2O4）][Co（2,2＇-bpy）3][PMo7^VIMo5^VV2^IVO42]（2,2＇-bpy）0.5.H2O（2）（phen=1,10＇-phenanthroline, imz= imidazole, 2,2＇-bpy=2.2＇-bipyridine） have been synthesized hydrothermally and characterized by elemental analyses, infrared spectrum, UV-Vis, X-ray photoelectron spectroscopy（XPS）, electron spin resonance（ESR） spectra, thermogravimetry analyses and single crystal X-ray diffraction analyses. Single-crystal X-ray diffraction analyses revealed that both the compounds represent the examples of compounds based on the bi-capped Keggin polyoxoanion {PMo12V2O42} and transition metal mixed-organic-ligand coordination complexes. Compound 1 consists of bi-capped Keggin polyoxoanion [PMo12V2O42]5 supported copper coordination groups, which are further interconnected with two types of copper complex fragments forming a 3D supramolecular framework via π-π stacking, C-H…O and N-H…-O hydrothermal bonding interactions. Compound 2 is a new hybrid consisted of polyoxoanion [PMo12V2O42]^4-, [Co2（2,2＇-bpy）4（C2O4）]^2＋ and [Co（2,2＇-bpy）3]^2＋. There are no direct interactions in compound 2, but the polyoxoanions together with two different cobalt complex groups construct a 3D supramolecular network through C-H…O hydrogen bonding interactions.展开更多
We have reported that Cp<sub>3</sub>Ln/NaH （Cp=cyclopentadienyl） systems can reduce alkene s and catalyze the isomerization of olefins, and their reactivity depends on the radii of trivalent rare earth i...We have reported that Cp<sub>3</sub>Ln/NaH （Cp=cyclopentadienyl） systems can reduce alkene s and catalyze the isomerization of olefins, and their reactivity depends on the radii of trivalent rare earth ions; σ ligands in （C<sub>5</sub>H<sub>4</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>C<sub>5</sub>H<sub>4</sub>） LnX·THF/NaH systems also affect obviously the reducing activity of the systems. Herein, we wish to report the results of reduction of alkenes with L<sub>2</sub>YCl（THF）<sub>n</sub>/NaH (L:展开更多
基金supported by the National Natural Science Foundation of China(21071008)Natural Science Foundation of Anhui Province(1308085QB34)
文摘A two-dimensional（2D）coordination polymer{[Cd（bdc）（dpb）]·H2O}n（1）has been prepared by solvothermal reaction of 1,3-dipyridyl benzene（1,3-dpb）with deprotonated1,4-benzenedicarboxylate（H2bdc）,and was characterized by elemental analysis,IR spectroscopy,and X-ray single-crystal diffraction.It crystallizes in the monoclinic system,space group C2/c with a=15.1839（12）,b=20.7585（17）,c=7.2989（6）,β=117.3450（10）°,V=2043.5（3）3,C24H18N2O5Cd,Mr=526.81,Dc=1.712 g/cm3,F（000）=1056.0,μ=1.110 mm-1and Z=4.The neighboring Cd（II）ions link the bdc2-anions and 1,3-dpb to form an infinite 2D sheet,and such two2D sheets are interlocked with each other to form a 2D→2D sheet.Two groups of interlocked sheets are further linked together by intermolecularπ···πinteraction,giving a 3D supramolecular network.In addition,the fluorescence property of 1 was also studied.
文摘A new coordination complex, [Ag(IIMB)N 3], was prepared by self-assembly of asymmetric ligand 1-(1-imidazolyl)-4-(imidazol-1-ylmethyl)benzene(IIMB) with [Ag(NH 3) 2]N 3. The crystal structural analysis indicates that the structure of the complex contains fifty-two-membered macrometallacyclic rings, and the complex crystallizes in monoclinic system, space group of P2 1/c with a=0.739 8(1) nm, {b=}1.045 1(1) nm, c=1.812 4(2)nm, β=91.65(1)°, V=1.400 7(3) nm3, Z=4, D c=1.774 g/cm3, {F(000)=}744, R=0.050 5, wR=0.084 0. It is notable that the azide ion bridges two silver(Ⅰ) atoms in end-on fashion.
文摘The title compound, [Cu（phen）2（SO4）（H2O）]·0.5C4H4O4·7H2O （phen = 1,10-phe-nan throline and C4H4O4 = fumaric acid）, has been synthesized and characterized by single-crystal X-ray diffraction. The crystal is of triclinic, space group P1^- with a = 11.4827（2）, b = 11.9086（2）, c = 13.77350（10） A, α = 80.6830（10）, β = 66.6480（10）, γ = 64.048000）°, V = 1554.63（4） A^3, Mr = 722.17, Z = 2, Dc = 1.543 g/cm^3,μ = 0.845 mm^-1, F（000） = 750, R = 0.0349 and wR = 0.0837 for 4754 observed reflections （1 〉 2σ（I））. The compound contains a six-coordinated copper（Ⅱ） center, which is surround by four N atoms of two phen ligands （Cu-N distances in the range of 1.997（2）- 2.225（2） A）, one sulfate O atom （Cu-O = 2.0037（17） A） and one water O atom （Cu-O（Sw） = 2.719（2） A,） in a distorted octahedral geometry. Extensive hydrogen-bonding interactions are involved in water molecules, ligated sulfate anions and fumaric acid molecules. In addition, π-π interactions via aromatic nitrogen-containing ligands are also discussed. The combination of non-covalent interactions leads to the formation of a 3-D network structure.
基金Supported by the National Natural Science Foundation of China（No.21371066）.
文摘Two supramolecular compounds [Cu（imz）2][Cu（phen）（imz）]2{[Cu（phen）]2[PMo6^VIMo6^VV2^IVO42]}（1） and [Co2（2,2＇-bpy）4（C2O4）][Co（2,2＇-bpy）3][PMo7^VIMo5^VV2^IVO42]（2,2＇-bpy）0.5.H2O（2）（phen=1,10＇-phenanthroline, imz= imidazole, 2,2＇-bpy=2.2＇-bipyridine） have been synthesized hydrothermally and characterized by elemental analyses, infrared spectrum, UV-Vis, X-ray photoelectron spectroscopy（XPS）, electron spin resonance（ESR） spectra, thermogravimetry analyses and single crystal X-ray diffraction analyses. Single-crystal X-ray diffraction analyses revealed that both the compounds represent the examples of compounds based on the bi-capped Keggin polyoxoanion {PMo12V2O42} and transition metal mixed-organic-ligand coordination complexes. Compound 1 consists of bi-capped Keggin polyoxoanion [PMo12V2O42]5 supported copper coordination groups, which are further interconnected with two types of copper complex fragments forming a 3D supramolecular framework via π-π stacking, C-H…O and N-H…-O hydrothermal bonding interactions. Compound 2 is a new hybrid consisted of polyoxoanion [PMo12V2O42]^4-, [Co2（2,2＇-bpy）4（C2O4）]^2＋ and [Co（2,2＇-bpy）3]^2＋. There are no direct interactions in compound 2, but the polyoxoanions together with two different cobalt complex groups construct a 3D supramolecular network through C-H…O hydrogen bonding interactions.
基金Project supported by the National Natural Science Foundation of China
文摘We have reported that Cp<sub>3</sub>Ln/NaH （Cp=cyclopentadienyl） systems can reduce alkene s and catalyze the isomerization of olefins, and their reactivity depends on the radii of trivalent rare earth ions; σ ligands in （C<sub>5</sub>H<sub>4</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>C<sub>5</sub>H<sub>4</sub>） LnX·THF/NaH systems also affect obviously the reducing activity of the systems. Herein, we wish to report the results of reduction of alkenes with L<sub>2</sub>YCl（THF）<sub>n</sub>/NaH (L:
