The title complex, \[La(btec) 1/2 (H 2 btec) 1/2 [KG*6](H 2 O)\] n n (H 4 btec=1,2,4,5 benzenetetracarboxylic acid) (1) was synthesized by the hydrothermal reaction of 1,2,4,5 be...The title complex, \[La(btec) 1/2 (H 2 btec) 1/2 [KG*6](H 2 O)\] n n (H 4 btec=1,2,4,5 benzenetetracarboxylic acid) (1) was synthesized by the hydrothermal reaction of 1,2,4,5 benzenetetracarboxylic dianhydride with La(NO 3 ) 3 ·6H 2 O in H 2 O, and crystallizes in the triclinic system, space group P 1 with a = 0.64403(3) nm, b = 0.94500(4) nm, c = 0.96380(5) nm, α = 88.535(2)°, β = 100.314(2)°, γ = 76.6470(10)° , V = 1.60968(10) nm 3 , Z =2, and final R = 0.0274 , R w = 0.0735. In 1, each La(III) ion is coordinated by eight oxygen atoms from six carboxylate groups and one coordinated water molecule. Two different coordination modes of H 4 btec were present in the structure, one of which contains two protonated carboxylate groups to balance the charge.展开更多
The reaction of Pr（Ⅲ） salt with 1,2,4,5-benzenetetracarboxylic acid（H4betc） and piperazine（pip） yielded a lanthanide metal-organic framework {[Pr（betc）（H2O）2]（H2pip）0.5}n（1）under hydrothermal conditions...The reaction of Pr（Ⅲ） salt with 1,2,4,5-benzenetetracarboxylic acid（H4betc） and piperazine（pip） yielded a lanthanide metal-organic framework {[Pr（betc）（H2O）2]（H2pip）0.5}n（1）under hydrothermal conditions. Compound 1 was characterized by single-crystal X-ray structural analysis, elemental analysis, IR, X-ray powder diffraction, and thermal gravimetric. Compound 1crystallizes in monoclinic, space group P21/n with a = 11.023（5）, b = 11.109（5）, c = 11.456（5） A, β = 110.065（5）°, V = 1317.7（9） A3, Mr = 471.14, Z = 4, F（000） = 920, Dc = 2.375 g/cm^3, μ（Mo Kα） = 3.761 mm-1, the final R = 0.0286 and w R = 0.0821（I 〉 2σ（I））. Compound 1 exhibits a 2D network with（4, 4） topology, and a 3D supramolecular framework formed by hydrogen-bonding interactions. The proton conductivity of compound 1 has been investigated at ~97% relative humidity and different temperature.展开更多
A new cobalt compound,{[Co（H2btec）（2,2＇-bipy）（H2O）3]·H2O}n （1,H4btec=1,2,4,5-benzenetetracarboxylic acid,2,2＇-bipy=2,2＇-bipyridine）,has been synthesized and charac-terized by single-crystal X-ray diffr...A new cobalt compound,{[Co（H2btec）（2,2＇-bipy）（H2O）3]·H2O}n （1,H4btec=1,2,4,5-benzenetetracarboxylic acid,2,2＇-bipy=2,2＇-bipyridine）,has been synthesized and charac-terized by single-crystal X-ray diffraction,elemental analysis,IR and X-ray powder diffraction.The crystal belongs to the triclinic system,space group P1,with a=7.230（3）,b=11.626（5）,c=14.001（6）,α=108.12（0）°,β=95.85（0）°,V=1095.33（157）3,C20H20CoN2O12,Mr=539.31,Z= 2,Dc=1.635 g/cm3,μ=0.855 mm-1,F（000）=554,R=0.0427 and wR=0.1042 for 3883 observed reflections （I 〉 2σ（I））.The title compound features a discrete molecular structure,which is connected with each other through extensive O-H…O hydrogen bonds into an intricate 3D supramolecular network.Additionally,two different patterns of π-π stacking interactions further consolidate the framework.展开更多
A heterometal-organic framework {[Pr2Ca（betc）2（H2O）7]·H2O}n（1） was prepared by the hydrothermal reaction of 1,2,4,5-benzenetetracarboxylic acid（H4betc） with Pr（NO3）3 and CaCO3, and further characterized...A heterometal-organic framework {[Pr2Ca（betc）2（H2O）7]·H2O}n（1） was prepared by the hydrothermal reaction of 1,2,4,5-benzenetetracarboxylic acid（H4betc） with Pr（NO3）3 and CaCO3, and further characterized by single-crystal X-ray structural analysis, elemental analysis, IR, thermal gravimetric, and X-ray powder diffraction. Complex 1 crystallizes in triclinic, space group P1 with a = 7.3668（12）, b = 10.1726（14）, c = 11.2264（15） A, a = 100.404（2）, b = 106.113（3）, g = 109.158（3）o, V = 728.48（19） A3, Mr = 966.26, Z = 1, F（000） = 470, Dc = 2.203 g/cm3, m（Mo Kα） = 3.585 mm-1, the final R = 0.0195 and w R = 0.0470（I 〉 2s（I））. Complex 1 is a 3D network with pcu topology with 1D porosity and rich hydrogen-bonding interactions. The proton conductivity of complex 1 was also studied under ~97% relative humidity and the different temperature conditions.展开更多
Two complexes with formulas [Ni L][（Ni L）（IPA）2]·8H2O（1） and [（Ni L）（H2O）2] [（Ni L）（PMA）]·4H2O（2）（L = 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane,IPA2– = isophthalic anion,P...Two complexes with formulas [Ni L][（Ni L）（IPA）2]·8H2O（1） and [（Ni L）（H2O）2] [（Ni L）（PMA）]·4H2O（2）（L = 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane,IPA2– = isophthalic anion,PMA4– = 1,2,4,5-benzenetetracarboxylic anion） were synthesized and characterized by elemental analyses and IR spectra.The crystal structures were determined by X-ray diffraction.In complex 1,the [Ni L]^2＋ bridged IPA^2– to give [（Ni L）（IPA）2]^2– monomer,and the [Ni L]^2＋ bridged PMA4– to form a one-dimensional chain [（Ni L）（PMA）]n^2n– in complex 2.The [Ni L]^2＋ and [（Ni L）（IPA）2]^2–/[（Ni L）（PMA）]^2– are connected through intermolecular hydrogen bonding to generate three-dimensional supramolecular structures.展开更多
A proton-transfer complex of 1,2,4,5-benzenetetracarboxylic acid（H4 BTC）with 1,10-phenanthroline（phen）[（H2BTC）^2-·2（Hphen）^＋·（H4BTC）]was synthesized and characterized by IR,UV-Vis spectra and lumi...A proton-transfer complex of 1,2,4,5-benzenetetracarboxylic acid（H4 BTC）with 1,10-phenanthroline（phen）[（H2BTC）^2-·2（Hphen）^＋·（H4BTC）]was synthesized and characterized by IR,UV-Vis spectra and luminescence. The structure was determined by X-ray single crystal diffraction.It crystallizes in the triclinic system,space group P-1 with a=7.3767（15）,b=10.704（2）,c=12.890（3）A.α=102.96（3）,β105.71（3）,γ=99.68（3）°,V=926.0（3）A^3,Dc=1.558g/cm^3,Z=2,μ（Mo-Kα）=0.121mm^-1 and F（000）=448.The final R=0.0401 and wR=0.0862 for 2983 observe reflections with[1〉2σ（I）].It is composed of discrete H4 BTC molecules,H2BTC^2- ANIONS AND [Hphen]^＋ cations.The extensive hydrogen-bonding associations fonned between the H4 BTC molecules and H2BTC^2- anions result in the formation of a two-dimensional layer,to which the [Hphen]^＋ cations are attached through the hydrogen bonds formed between the carboxyl groups of H4 BTC and the NH groups of [Hphen]^＋.Under the excitation of UV light.it emits an intense blue luminescence.展开更多
The single crystals of the title compound were obtained from a reaction of MnCO3, benzenetetracarboxylic acid (H4BTC) and imidazole in an aqueous solution. The crystal of Mn(II) complex (C28H34Mn2N12O124H2O, Mr = 912....The single crystals of the title compound were obtained from a reaction of MnCO3, benzenetetracarboxylic acid (H4BTC) and imidazole in an aqueous solution. The crystal of Mn(II) complex (C28H34Mn2N12O124H2O, Mr = 912.62) belongs to tricli nic, space group P?with a = 10.036(1), b = 10.650(1), c = 11.102(1) , a = 114.72(2), b = 95.75(1), g = 108.46(2)o, V = 984.2(2) 3, Z = 1, Dc = 1.540 g/cm3, F(000) = 472, m(MoKa) = 0.726 mm-1, R = 0.0409 and wR = 0.1166 for 3909 observed reflections (I > 2s(I)). The crystal consists of the polymeric Mn(II) complex anions and discrete Mn(II) complex cations, both with normal octahedral coordination geometry. Each BTC bridges two Mn(II) atoms to form the anionic polymeric chain, and the cations distribute be- tween the chains and link them through both classic and weak CH…O H-bonding.展开更多
The hydrothermal reactions of Cd（OAc）2·2H2O with 1,2,4,5-benzenetetracarboxylic acid（H4bta） and 1,4-bis（thiabendazolyl）butane（L1） or 1,6-bis（thiabendazolyl）hexane（L2） afforded two coordination polymer...The hydrothermal reactions of Cd（OAc）2·2H2O with 1,2,4,5-benzenetetracarboxylic acid（H4bta） and 1,4-bis（thiabendazolyl）butane（L1） or 1,6-bis（thiabendazolyl）hexane（L2） afforded two coordination polymers [Cd2（L1）（bta）·2H2O]n（1） and [Cd2（L2）2（H2bta）2]n（2）. Complex 1 holds a rare 3D binodal（4,6）-connected framework with fsh topology. Complex 2 features an infinite meandering chain structure, which is further extended via O–H···O hydrogen bonding into a 3D supramolecular network. The thermal and fluorescence proprieties of the two complexes were investigated.展开更多
A novel heterometallic complex,[Zn4Ni（OH）2（btec）2（titb）2（H2O）2]·2H2O（1）（H4btec=1,2,4,5-benzenetetracarboxylic acid,titb=1,3,5-tris（imidazol-1-ylmethyl）-2,4,6-trime-thylbenzene）,has been hydrothermal...A novel heterometallic complex,[Zn4Ni（OH）2（btec）2（titb）2（H2O）2]·2H2O（1）（H4btec=1,2,4,5-benzenetetracarboxylic acid,titb=1,3,5-tris（imidazol-1-ylmethyl）-2,4,6-trime-thylbenzene）,has been hydrothermally prepared and characterized by IR spectroscopy,elemental analysis and single-crystal X-ray diffraction.The crystal is of triclinic system,space group P1 with a=10.817（10）,b=11.878（11）,c=14.569（14）,α=71.762（12）,β=76.122（13）,γ=71.493（13）°,V=1665（3）3,C62H62N12O22Zn4Ni,Mr=1647.43,Dc=1.643 g/cm3,F（000）=842,μ=1.784 mm-1 and Z=1.The final R=0.0531 and wR=0.0890 for 3545 observed reflections（Ⅰ 2σ（Ⅰ））.In the title complex,the btec ligand acts as a five-dentate bridging ligand to link up zinc and nickel atoms into a lamellar framework,which are further interlinked into a 3-D framework via the titb ligands.展开更多
基金theNationalNaturalScienceFoundationofChina (No .2 990 10 0 5 )
文摘The title complex, \[La(btec) 1/2 (H 2 btec) 1/2 [KG*6](H 2 O)\] n n (H 4 btec=1,2,4,5 benzenetetracarboxylic acid) (1) was synthesized by the hydrothermal reaction of 1,2,4,5 benzenetetracarboxylic dianhydride with La(NO 3 ) 3 ·6H 2 O in H 2 O, and crystallizes in the triclinic system, space group P 1 with a = 0.64403(3) nm, b = 0.94500(4) nm, c = 0.96380(5) nm, α = 88.535(2)°, β = 100.314(2)°, γ = 76.6470(10)° , V = 1.60968(10) nm 3 , Z =2, and final R = 0.0274 , R w = 0.0735. In 1, each La(III) ion is coordinated by eight oxygen atoms from six carboxylate groups and one coordinated water molecule. Two different coordination modes of H 4 btec were present in the structure, one of which contains two protonated carboxylate groups to balance the charge.
基金supported by National Natural Science Foundation of China(21401147)Basic Research Program of Natural Science from Shaanxi Provincial Government(2015JQ2032)+2 种基金Scientific Research Program from Education Department of Shaanxi Provincial Government(2013JK0654)Opening Foundation from State Key Laboratory of Coordination Chemistry in Nanjing University(201219)the Program for Distinguished Young Scholars of Xi’an Polytechnic University(201403)
文摘The reaction of Pr（Ⅲ） salt with 1,2,4,5-benzenetetracarboxylic acid（H4betc） and piperazine（pip） yielded a lanthanide metal-organic framework {[Pr（betc）（H2O）2]（H2pip）0.5}n（1）under hydrothermal conditions. Compound 1 was characterized by single-crystal X-ray structural analysis, elemental analysis, IR, X-ray powder diffraction, and thermal gravimetric. Compound 1crystallizes in monoclinic, space group P21/n with a = 11.023（5）, b = 11.109（5）, c = 11.456（5） A, β = 110.065（5）°, V = 1317.7（9） A3, Mr = 471.14, Z = 4, F（000） = 920, Dc = 2.375 g/cm^3, μ（Mo Kα） = 3.761 mm-1, the final R = 0.0286 and w R = 0.0821（I 〉 2σ（I））. Compound 1 exhibits a 2D network with（4, 4） topology, and a 3D supramolecular framework formed by hydrogen-bonding interactions. The proton conductivity of compound 1 has been investigated at ~97% relative humidity and different temperature.
基金supported by 973 Program (2007CB815302,2009CB939803)Chinese Academy of Sciences (KJCX2.YW.319,KJCX2.YW.M10,KJCX2-YW-M05)the Knowledge Innovation Program of Chinese Academy of Science,and Fujian Key Laboratory of Nanomaterials (2006L2005)
文摘A new cobalt compound,{[Co（H2btec）（2,2＇-bipy）（H2O）3]·H2O}n （1,H4btec=1,2,4,5-benzenetetracarboxylic acid,2,2＇-bipy=2,2＇-bipyridine）,has been synthesized and charac-terized by single-crystal X-ray diffraction,elemental analysis,IR and X-ray powder diffraction.The crystal belongs to the triclinic system,space group P1,with a=7.230（3）,b=11.626（5）,c=14.001（6）,α=108.12（0）°,β=95.85（0）°,V=1095.33（157）3,C20H20CoN2O12,Mr=539.31,Z= 2,Dc=1.635 g/cm3,μ=0.855 mm-1,F（000）=554,R=0.0427 and wR=0.1042 for 3883 observed reflections （I 〉 2σ（I））.The title compound features a discrete molecular structure,which is connected with each other through extensive O-H…O hydrogen bonds into an intricate 3D supramolecular network.Additionally,two different patterns of π-π stacking interactions further consolidate the framework.
基金supported by the National Natural Science Foundation of China(21401147 and 21301134)Basic Research Program of Natural Science from Shaanxi Provincial Government(2015JQ2032)+2 种基金Scientific Research Program from Education Department of Shaanxi Provincial Government(2013JK0654)Opening Foundation from State Key Laboratory of Coordination Chemistry in Nanjing University(201219)the Program for Distinguished Young Scholars of Xi’an Polytechnic University(201403)
文摘A heterometal-organic framework {[Pr2Ca（betc）2（H2O）7]·H2O}n（1） was prepared by the hydrothermal reaction of 1,2,4,5-benzenetetracarboxylic acid（H4betc） with Pr（NO3）3 and CaCO3, and further characterized by single-crystal X-ray structural analysis, elemental analysis, IR, thermal gravimetric, and X-ray powder diffraction. Complex 1 crystallizes in triclinic, space group P1 with a = 7.3668（12）, b = 10.1726（14）, c = 11.2264（15） A, a = 100.404（2）, b = 106.113（3）, g = 109.158（3）o, V = 728.48（19） A3, Mr = 966.26, Z = 1, F（000） = 470, Dc = 2.203 g/cm3, m（Mo Kα） = 3.585 mm-1, the final R = 0.0195 and w R = 0.0470（I 〉 2s（I））. Complex 1 is a 3D network with pcu topology with 1D porosity and rich hydrogen-bonding interactions. The proton conductivity of complex 1 was also studied under ~97% relative humidity and the different temperature conditions.
基金supported by the Natural Science Foundation of Hunan Province(2015JJ2072)the Key Laboratory of Comprehensive Utilization of Advantage Plants Resources in Hunan South(XNZW14C08)+1 种基金the Construct Program of the Key Discipline in Hunan Province(2011-76)the Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province(2012-318)
文摘Two complexes with formulas [Ni L][（Ni L）（IPA）2]·8H2O（1） and [（Ni L）（H2O）2] [（Ni L）（PMA）]·4H2O（2）（L = 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane,IPA2– = isophthalic anion,PMA4– = 1,2,4,5-benzenetetracarboxylic anion） were synthesized and characterized by elemental analyses and IR spectra.The crystal structures were determined by X-ray diffraction.In complex 1,the [Ni L]^2＋ bridged IPA^2– to give [（Ni L）（IPA）2]^2– monomer,and the [Ni L]^2＋ bridged PMA4– to form a one-dimensional chain [（Ni L）（PMA）]n^2n– in complex 2.The [Ni L]^2＋ and [（Ni L）（IPA）2]^2–/[（Ni L）（PMA）]^2– are connected through intermolecular hydrogen bonding to generate three-dimensional supramolecular structures.
文摘A proton-transfer complex of 1,2,4,5-benzenetetracarboxylic acid（H4 BTC）with 1,10-phenanthroline（phen）[（H2BTC）^2-·2（Hphen）^＋·（H4BTC）]was synthesized and characterized by IR,UV-Vis spectra and luminescence. The structure was determined by X-ray single crystal diffraction.It crystallizes in the triclinic system,space group P-1 with a=7.3767（15）,b=10.704（2）,c=12.890（3）A.α=102.96（3）,β105.71（3）,γ=99.68（3）°,V=926.0（3）A^3,Dc=1.558g/cm^3,Z=2,μ（Mo-Kα）=0.121mm^-1 and F（000）=448.The final R=0.0401 and wR=0.0862 for 2983 observe reflections with[1〉2σ（I）].It is composed of discrete H4 BTC molecules,H2BTC^2- ANIONS AND [Hphen]^＋ cations.The extensive hydrogen-bonding associations fonned between the H4 BTC molecules and H2BTC^2- anions result in the formation of a two-dimensional layer,to which the [Hphen]^＋ cations are attached through the hydrogen bonds formed between the carboxyl groups of H4 BTC and the NH groups of [Hphen]^＋.Under the excitation of UV light.it emits an intense blue luminescence.
文摘The single crystals of the title compound were obtained from a reaction of MnCO3, benzenetetracarboxylic acid (H4BTC) and imidazole in an aqueous solution. The crystal of Mn(II) complex (C28H34Mn2N12O124H2O, Mr = 912.62) belongs to tricli nic, space group P?with a = 10.036(1), b = 10.650(1), c = 11.102(1) , a = 114.72(2), b = 95.75(1), g = 108.46(2)o, V = 984.2(2) 3, Z = 1, Dc = 1.540 g/cm3, F(000) = 472, m(MoKa) = 0.726 mm-1, R = 0.0409 and wR = 0.1166 for 3909 observed reflections (I > 2s(I)). The crystal consists of the polymeric Mn(II) complex anions and discrete Mn(II) complex cations, both with normal octahedral coordination geometry. Each BTC bridges two Mn(II) atoms to form the anionic polymeric chain, and the cations distribute be- tween the chains and link them through both classic and weak CH…O H-bonding.
基金Project supported by the Natural Science Foundation-steel and Iron Foundation of Hebei Province(B2015209299 and E2016209304)
文摘The hydrothermal reactions of Cd（OAc）2·2H2O with 1,2,4,5-benzenetetracarboxylic acid（H4bta） and 1,4-bis（thiabendazolyl）butane（L1） or 1,6-bis（thiabendazolyl）hexane（L2） afforded two coordination polymers [Cd2（L1）（bta）·2H2O]n（1） and [Cd2（L2）2（H2bta）2]n（2）. Complex 1 holds a rare 3D binodal（4,6）-connected framework with fsh topology. Complex 2 features an infinite meandering chain structure, which is further extended via O–H···O hydrogen bonding into a 3D supramolecular network. The thermal and fluorescence proprieties of the two complexes were investigated.
基金supported by the National Natural Science Foundation of China (No. 20971004)the Key Project of Chinese Ministry of Education (No. 210102)
文摘A novel heterometallic complex,[Zn4Ni（OH）2（btec）2（titb）2（H2O）2]·2H2O（1）（H4btec=1,2,4,5-benzenetetracarboxylic acid,titb=1,3,5-tris（imidazol-1-ylmethyl）-2,4,6-trime-thylbenzene）,has been hydrothermally prepared and characterized by IR spectroscopy,elemental analysis and single-crystal X-ray diffraction.The crystal is of triclinic system,space group P1 with a=10.817（10）,b=11.878（11）,c=14.569（14）,α=71.762（12）,β=76.122（13）,γ=71.493（13）°,V=1665（3）3,C62H62N12O22Zn4Ni,Mr=1647.43,Dc=1.643 g/cm3,F（000）=842,μ=1.784 mm-1 and Z=1.The final R=0.0531 and wR=0.0890 for 3545 observed reflections（Ⅰ 2σ（Ⅰ））.In the title complex,the btec ligand acts as a five-dentate bridging ligand to link up zinc and nickel atoms into a lamellar framework,which are further interlinked into a 3-D framework via the titb ligands.
