A novel binuclear complex （[Cu^2（μ2-shed）（hshed）].（CIO4）,H2O, h2shed = N-salicylidene-N＇-（2-hydroxyethyl）ethylenediamine） has been synthesized and structurally characterized by X-ray diffraction analysis. ...A novel binuclear complex （[Cu^2（μ2-shed）（hshed）].（CIO4）,H2O, h2shed = N-salicylidene-N＇-（2-hydroxyethyl）ethylenediamine） has been synthesized and structurally characterized by X-ray diffraction analysis. It crystallizes in monoclinic, space group P21/c with a = 12.511（10）, b = 15.750（12）, c = 14.281 （12） A, β = 100.564（14）°, C22H31CIN4O9Cu2, Mr = 658.04, V = 2766（4） A^3, Z = 4, Dc = 1.580 g/cm^3,μ（MoKα = 1.689 mm^-1, F（000） = 1352, the final R = 0.0528 and wR = 0.1433 for 4880 independent reflections with Rint = 0.0577. The complex is a binuclear copper compound, and two Cu（Ⅱ） ions in the binuclear cation are in different coordination environments. The Cu（1） ion adopts a distorted square pyramidal geometry （x = 0.22） with four donor atoms （N2O2） of the ligand in the basal plane, and one hydroxyl oxygen atom with protonated form occupying the apical position. The Cu（2） ion assumes the geometry of a distorted square plane with four donor atoms （N2O2） of the ligand. The Cu...Cu separation is 3.103 A,. In addition, N-H…O and C-H…O intermolecular hydrogen bonding interactions link these binuclear cations into a quasi one-dimensional chain along the a axis.展开更多
Two new Zn（Ⅱ）-MOFs were synthesized based on an asymmetric Schiff-base ligand LH, which is obtained by the condensation of 5-formyl-8-hydroxyquinoline and 3-pyridinecar- boxylic acid hydrazide. In different mixed s...Two new Zn（Ⅱ）-MOFs were synthesized based on an asymmetric Schiff-base ligand LH, which is obtained by the condensation of 5-formyl-8-hydroxyquinoline and 3-pyridinecar- boxylic acid hydrazide. In different mixed solvents, we get two new isomorphism compounds, [Zn（L）2]＇CaHsO2-2MeOH （1） and [Zn（L）2]＇CH2CIz＇2MeOH （2）. Compounds 1 and 2 have been characterized by single-crystal X-ray diffraction, elemental analysis and IR. Compound 1 crystallizes in monoclinic, space group P2/c, with a - 13.856（4）, b = 14.156（4）, c = 9.620（3）А, β = 110.167（5）°, V = 1771.3（9） /k3, Dc = 1.500 g/cm3, C3sH3sNsOsZn, Mr = 800.13, F（000） = 832, p（MoKa） = 0.761 mm-1, Z = 2, the final R = 0.0596 and wR = 0.1221 for 2112 observed reflections （I 〉 2σ（0）. Compound 2 belongs to monoclinic, space group P21/c, with a = 13.575（3）, b = 14.130（3）, c = 9.485（2） A, β = 107.908（3）°, V= 1731.2（6） A3, Dc = 1.529 g/cm3, CasH32C12NsO6Zn, Mr = 796.96, F（000） = 820, g（MoKa） = 0.926 mm-1, Z = 2, the final R -- 0.0527 and wR = 0.1395 for 2501 observed reflections （I 〉 2σ-（/））. The Zn（II） centers in both 1 and 2 display a distorted octahedral coordination geometry. The octahedral Zn（lI） nodes and L linkages build up 2-D nets consisting of parallelogram-like grids in the ab plane. The neighboring nets stack through hydrogen bonds to generate 3-D rhombic channels. In 1, the 1,4-dioxane and MeOH guests alternatively arrange in the channels and effectively take up the free space; while in 2, the CH2CI/guests are arranged in the channels. In addition, the encapsulated MeOH molecules are bonded to the framework by hydrogen bonds.展开更多
A new cobalt（II） complex [Co（NO2-salen）2]·1.5H2O containing mono acetalization Schiff base ligand（NO2-salen = N-5-nitro-salicylideneamino ethanato） has been prepared through one-pot template condensation, a...A new cobalt（II） complex [Co（NO2-salen）2]·1.5H2O containing mono acetalization Schiff base ligand（NO2-salen = N-5-nitro-salicylideneamino ethanato） has been prepared through one-pot template condensation, and has been structurally characterized by elemental analysis, IR spectra and X-ray diffraction. It is formulated as C18H23CoN6O7.5, crystallizes in the hexagonal system, space group of R-3c with α = 25.895（18）, b = 25.895（18）, c = 35.075（6）, γ = 120o, V = 20368（3） and Z = 36. The ligand of 5-nitrosalicylaldehyde-ethylene-diamine takes unusual mono asymmetry mode. The Co（II） ion exhibits a coordination number of six, and assumes a distorted octahedral geometry with a N2O4 donor set. The neutral monomeric units of [Co（NO2-salen）2]·1.5H2O are linked into a one-dimensional（1D） structure via the intermolecular hydrogen bonds and weak π-π stacking interactions. Cyclic-voltammetry measurement reveals the oxidation and reduction processes for the complex are irreversible in nature.展开更多
A new cyanide-bridged bimetallic assembly [Mn（3-meosalpn）（H2O）]2[Fe（CN）5NO]（1） was obtained by the reaction of [Fe（CN）5NO]2-with [Mn（3-meosalpn）]＋,and characterized by elemental analysis,IR and single-cry...A new cyanide-bridged bimetallic assembly [Mn（3-meosalpn）（H2O）]2[Fe（CN）5NO]（1） was obtained by the reaction of [Fe（CN）5NO]2-with [Mn（3-meosalpn）]＋,and characterized by elemental analysis,IR and single-crystal X-ray structure analysis.The complex crystallizes in the monoclinic system,space group P21/c with a = 12.992（5）,b = 13.274（6）,c = 14.644（6） ,β = 115.198（4）o,V = 2285.2（16）3,Z = 2,C43H44FeMn2N10O11,Mr = 1042.61,Dc = 1.515 g/cm3,F（000） = 1072,μ = 0.928 mm-1,S = 1.052,the final R = 0.0347 and wR = 0.0957 for 17377 observed reflections（Ⅰ 〉 2σ（Ⅰ））.X-ray single-crystal diffraction analysis reveals that 1 has a trinuclear molecular structure,in which the two [Mn（3-meosalpn）（H2O）]＋ cations are linked by the central [Fe（CN）5NO]2-anion via two trans CN-groups.Furthermore,the two [Mn（3-meo-salpn）（H2O）]＋ cations and [Fe（CN）5NO]2-anion are connected into a one-dimensional zigzag chain through hydrogen bonding interactions.展开更多
A novel zinc（Ⅱ） complex of empirical formula,ZnL2（L=anionic forms of S-benzyl-β-N-（2,4-dichlorobenzylidene） hydrazine carbodithioate）,has been synthesized and characterized by elemental analysis,IR spectra and...A novel zinc（Ⅱ） complex of empirical formula,ZnL2（L=anionic forms of S-benzyl-β-N-（2,4-dichlorobenzylidene） hydrazine carbodithioate）,has been synthesized and characterized by elemental analysis,IR spectra and single-crystal X-ray diffraction.The crystal belongs to the triclinic system,space group P with a = 9.3168（9）,b = 13.0353（13）,c = 14.7702（15） ,α = 71.2860（10）,= 87.5140（10）,γ = 79.4480（10）o,V = 1670.0（3） 3,Z = 2,Mr = 773.93,Dc = 1.539 g/cm3,μ = 1.334 mm-1,F（000） = 784,the final R = 0.0403 and wR = 0.0800 for 4060 observed reflections with I〉2（I）.In the crystal structure,the zinc（Ⅱ） complex has a distorted tetrahedral geometry in which the zinc ion is coordinated by the nitrogen and sulfur atoms from two Schiff base ligands,respectively.The preliminary bioassay indicates that the Schiff base and its zinc complex exhibit inhibitory activity against the human gastric cancer cell lines（MKN45） and hepatoma cell lines（HepG2）.展开更多
A novel dinuclear copper（Ⅱ） complex [CuL（NO3）]2·2MeOH was obtained by the coordination reaction of Cu（NO3）2·3H2O with ligand HL （HL=N-（methyl-2-benzimidazol- methylidene）-2-hydroxyaniline）. The si...A novel dinuclear copper（Ⅱ） complex [CuL（NO3）]2·2MeOH was obtained by the coordination reaction of Cu（NO3）2·3H2O with ligand HL （HL=N-（methyl-2-benzimidazol- methylidene）-2-hydroxyaniline）. The single-crystal X-ray analysis has revealed that the complex crystallizes in triclinic, space group P with a=9.535（3）, b=10.009（3）, c=10.666（4） , α=104.303（4）, β=100.105（4）, γ=115.917（4）o, V=839.0（5） 3, C16H16CuN4O5, Mr=407.87, Z=2, Dc=1.614 g/cm3, F（000）=418, μ=1.338 mm-1, R=0.0543 and wR=0.0980. The basic dinuclear copper（Ⅱ） complex units [CuL（NO3）]2 are formed by NO3- as co-bridging ligands and L as NNO tridentate chelate coordinating to the copper ions. The ladder-like one-dimensional chain motifs are formed by O…H-O and O…H-N hydrogen bonds from methanol molecules connecting the dinuclear copper（Ⅱ） units.展开更多
Two new mononuclear complexes, namely [Co（L）2]（1） and [Mn（L）2]（2）（HL = N-（3-methylsalicylidene）tryptamine）, have been synthesized by the reactions of the ligand with cobalt acetate or manganese acetate in ...Two new mononuclear complexes, namely [Co（L）2]（1） and [Mn（L）2]（2）（HL = N-（3-methylsalicylidene）tryptamine）, have been synthesized by the reactions of the ligand with cobalt acetate or manganese acetate in anhydrous ethanol. The crystal structures of the complexes were characterized by IR spectrum, elemental analysis, PXRD and single-crystal X-ray diffraction analysis. Complex 1 crystallizes in monoclinic, space group C2/c, with a = 23.146（2）, b = 9.4864（10）, c = 13.9261（15）A, β = 102.898（2）°, V = 2980.6（5） ？3, Z = 4, Dc = 1.367 g/cm3, F（000） = 1284 and μ = 0.616 mm^-1. Complex 2 crystallizes in monoclinic, space group P21/n, with a = 14.807（11）, b = 13.118（10）, c = 16.663（13） A, β = 111.237（14）°, V = 3017（4） A^3, Z = 4, Dc = 1.342 g/cm^3, F（000） = 1276 and μ = 0.477 mm-1. The units of complex 1 are linked by intermolecular N–H…π hydrogen bonds into infinite 1D chains, which are further extended into a 3D supramolecular structure by a series of π···π stacking interactions. The units of complex 2 are linked by intermolecular N–H…π hydrogen bonds and C–H…π hydrogen bonds into an infinite 3D supramolecular structure. Meanwhile, the antibacterial activities of the ligand and its complexes have been tested against four kinds of bacteria. The results show that the three compounds all have excellent antibacterial activities and that 1 and 2 possess stronger inhibiting effects against the bacteria than the Schiff base.展开更多
We synthesized one novel Schiff-base ligand by modifying the aromatic aldehyde： H2L^1（H2L^1 = N,N？-bis（2-oxy-acetate-3-methoxyl）benzylpropylene（1,3-propane）diamine）. [Ni（C（23）H（24）N2O8）]·6H2O]（1） ...We synthesized one novel Schiff-base ligand by modifying the aromatic aldehyde： H2L^1（H2L^1 = N,N？-bis（2-oxy-acetate-3-methoxyl）benzylpropylene（1,3-propane）diamine）. [Ni（C（23）H（24）N2O8）]·6H2O]（1） was prepared by the reaction between H2L^1 and NiCl2·6H2O in C2H5 OH. Compound 1 was structurally characterized by elemental analysis, IR, H NMR and single-crystal X-ray diffraction. 1 crystallizes in monoclinic system, space group P21/n with a = 1.3952（4）, b = 1.3746（9）, c = 1.6121（0） nm, β = 112.66（3）°, V = 2.8533（4） nm^3, Z = 4, Mr = 623.25 and Dc = 1.451 g·cm^（-3）. The Ni（Ⅱ） atom is hexa-coordinated to furnish a slightly distorted octahedral geometry. Lattice water molecules are found in 1, and the H-bonding intersections formed novel water clusters. The IR, antibacterial activity and luminescence of 1 are studied.展开更多
The title complex ZnCl 2 (salaad) 2 (salaad= N salicylidene 1 aminoadamantane) was synthesized and characterized by X ray diffraction analysis. The crystal crystallizes in orthorhombic system, space group P bca with a...The title complex ZnCl 2 (salaad) 2 (salaad= N salicylidene 1 aminoadamantane) was synthesized and characterized by X ray diffraction analysis. The crystal crystallizes in orthorhombic system, space group P bca with a =1 503 2(3), b =1 819 5(4), c =2 330 2(5) nm, V =6 373(2) nm, Z =8, D c = 1 348 g/cm 3 , μ =0 971 mm -1 (Mo Kα ), F (000)=2 720. The structure was refined to R =0 048 9 and wR = 0 094 3 for observed 2 978 reflections with I≥2σ(I) . The Zn(Ⅱ) ion has a distorted tetrahedral coordination consisting of two chlorine ions and the two oxygen atoms from two Schiff base ligands.展开更多
The novel dinuclear copper(Ⅱ) complex with with N (2,4 dihydroxybenzalidene) o aminobenzoic acid ligand, [Cu(C14H9NO4)]2· 2H2O, has been synthesized and characterized by elemental analysis, IR, UV Vis and therma...The novel dinuclear copper(Ⅱ) complex with with N (2,4 dihydroxybenzalidene) o aminobenzoic acid ligand, [Cu(C14H9NO4)]2· 2H2O, has been synthesized and characterized by elemental analysis, IR, UV Vis and thermal analysis. Its crystal structure was determined by single crystal X ray diffraction techniques. The crystal belongs to monoclinic with space group P21/c. The cell parameters are: a=0.82510(11)nm, b=0.68870(9)nm, c=2.3007(3)nm, β =100.847(2)° , V=1.2840(3)nm3, Z=2, Dc=1.742Mg· m- 3, μ (MoKα )=1.723mm- 1, F(000)=684. The structure was refined to final R1=0.0267, wR2=0.0735. The complex molecule structure has dinuclear centrosymmetric dimeric structure in which a planar Cu2O2 core features. The ligand N (2,4 dihydroxybenzalidene) o aminobenzoic acid dianion is μ 2 tridentate, chelating one copper? ion via one nitrogen, one hydroxy oxygen atom and one carboxylate oxygen atom, and the hydroxy oxygen atom simultaneously coordinates to the other copper? ion of the dimer. In the structure the copper? ion rendered four coordination in a distorted square planar geometry structure. CCDC: 212695.展开更多
The coordination compound of [Pb（PNS）（NO3）Cl]·H2O was synthesized by using ligand PNS and lead nitrate.The molecular structure of [Pb（PNS）（NO3）Cl]·H2O was determined by using a single crystal diffrac...The coordination compound of [Pb（PNS）（NO3）Cl]·H2O was synthesized by using ligand PNS and lead nitrate.The molecular structure of [Pb（PNS）（NO3）Cl]·H2O was determined by using a single crystal diffraction analysis.The crystal belongs to triclinic with space group P1-.The unit cell parameters are as follows:a=0.7634（3）nm,b=0.7794（3）nm,c=1.0679（5）nm,d=102.087（13）°,β=91.605（13）°,（γ=91.605（10）°,V=0.6262（5）nm3,Z=2,Mr=2.582g/cm3）,μ=13.709mm-1,F（000）=452,R1=0.0355,wR2=0.0785 for the title complex.In [Pb（PNS）（NO3）Cl]·H2O,the Pb（Ⅱ） ion has a distorted square pyramided coordination geometry coordinated by two N and one O atoms from PNS,one Cl-ion and one 0 atom from nitrate ion.展开更多
文摘A novel binuclear complex （[Cu^2（μ2-shed）（hshed）].（CIO4）,H2O, h2shed = N-salicylidene-N＇-（2-hydroxyethyl）ethylenediamine） has been synthesized and structurally characterized by X-ray diffraction analysis. It crystallizes in monoclinic, space group P21/c with a = 12.511（10）, b = 15.750（12）, c = 14.281 （12） A, β = 100.564（14）°, C22H31CIN4O9Cu2, Mr = 658.04, V = 2766（4） A^3, Z = 4, Dc = 1.580 g/cm^3,μ（MoKα = 1.689 mm^-1, F（000） = 1352, the final R = 0.0528 and wR = 0.1433 for 4880 independent reflections with Rint = 0.0577. The complex is a binuclear copper compound, and two Cu（Ⅱ） ions in the binuclear cation are in different coordination environments. The Cu（1） ion adopts a distorted square pyramidal geometry （x = 0.22） with four donor atoms （N2O2） of the ligand in the basal plane, and one hydroxyl oxygen atom with protonated form occupying the apical position. The Cu（2） ion assumes the geometry of a distorted square plane with four donor atoms （N2O2） of the ligand. The Cu...Cu separation is 3.103 A,. In addition, N-H…O and C-H…O intermolecular hydrogen bonding interactions link these binuclear cations into a quasi one-dimensional chain along the a axis.
文摘Two new Zn（Ⅱ）-MOFs were synthesized based on an asymmetric Schiff-base ligand LH, which is obtained by the condensation of 5-formyl-8-hydroxyquinoline and 3-pyridinecar- boxylic acid hydrazide. In different mixed solvents, we get two new isomorphism compounds, [Zn（L）2]＇CaHsO2-2MeOH （1） and [Zn（L）2]＇CH2CIz＇2MeOH （2）. Compounds 1 and 2 have been characterized by single-crystal X-ray diffraction, elemental analysis and IR. Compound 1 crystallizes in monoclinic, space group P2/c, with a - 13.856（4）, b = 14.156（4）, c = 9.620（3）А, β = 110.167（5）°, V = 1771.3（9） /k3, Dc = 1.500 g/cm3, C3sH3sNsOsZn, Mr = 800.13, F（000） = 832, p（MoKa） = 0.761 mm-1, Z = 2, the final R = 0.0596 and wR = 0.1221 for 2112 observed reflections （I 〉 2σ（0）. Compound 2 belongs to monoclinic, space group P21/c, with a = 13.575（3）, b = 14.130（3）, c = 9.485（2） A, β = 107.908（3）°, V= 1731.2（6） A3, Dc = 1.529 g/cm3, CasH32C12NsO6Zn, Mr = 796.96, F（000） = 820, g（MoKa） = 0.926 mm-1, Z = 2, the final R -- 0.0527 and wR = 0.1395 for 2501 observed reflections （I 〉 2σ-（/））. The Zn（II） centers in both 1 and 2 display a distorted octahedral coordination geometry. The octahedral Zn（lI） nodes and L linkages build up 2-D nets consisting of parallelogram-like grids in the ab plane. The neighboring nets stack through hydrogen bonds to generate 3-D rhombic channels. In 1, the 1,4-dioxane and MeOH guests alternatively arrange in the channels and effectively take up the free space; while in 2, the CH2CI/guests are arranged in the channels. In addition, the encapsulated MeOH molecules are bonded to the framework by hydrogen bonds.
基金supported by the National Natural Science Foundation of China(No.21273101)the Foundation of the Program for Backbone Teachers in Universities of Henan Province(No.2012GGJS158)+1 种基金tackle key problem of science and technology Project of Henan Province(No.142102310483)the Foundation of Education Committee of Henan Province(No.14B150033)
文摘A new cobalt（II） complex [Co（NO2-salen）2]·1.5H2O containing mono acetalization Schiff base ligand（NO2-salen = N-5-nitro-salicylideneamino ethanato） has been prepared through one-pot template condensation, and has been structurally characterized by elemental analysis, IR spectra and X-ray diffraction. It is formulated as C18H23CoN6O7.5, crystallizes in the hexagonal system, space group of R-3c with α = 25.895（18）, b = 25.895（18）, c = 35.075（6）, γ = 120o, V = 20368（3） and Z = 36. The ligand of 5-nitrosalicylaldehyde-ethylene-diamine takes unusual mono asymmetry mode. The Co（II） ion exhibits a coordination number of six, and assumes a distorted octahedral geometry with a N2O4 donor set. The neutral monomeric units of [Co（NO2-salen）2]·1.5H2O are linked into a one-dimensional（1D） structure via the intermolecular hydrogen bonds and weak π-π stacking interactions. Cyclic-voltammetry measurement reveals the oxidation and reduction processes for the complex are irreversible in nature.
基金supported by Industry High Technology Foundation of Jiangsu (BG2007025)Doctoral Fund from National Ministry of Education (20093227110009),China
文摘A new cyanide-bridged bimetallic assembly [Mn（3-meosalpn）（H2O）]2[Fe（CN）5NO]（1） was obtained by the reaction of [Fe（CN）5NO]2-with [Mn（3-meosalpn）]＋,and characterized by elemental analysis,IR and single-crystal X-ray structure analysis.The complex crystallizes in the monoclinic system,space group P21/c with a = 12.992（5）,b = 13.274（6）,c = 14.644（6） ,β = 115.198（4）o,V = 2285.2（16）3,Z = 2,C43H44FeMn2N10O11,Mr = 1042.61,Dc = 1.515 g/cm3,F（000） = 1072,μ = 0.928 mm-1,S = 1.052,the final R = 0.0347 and wR = 0.0957 for 17377 observed reflections（Ⅰ 〉 2σ（Ⅰ））.X-ray single-crystal diffraction analysis reveals that 1 has a trinuclear molecular structure,in which the two [Mn（3-meosalpn）（H2O）]＋ cations are linked by the central [Fe（CN）5NO]2-anion via two trans CN-groups.Furthermore,the two [Mn（3-meo-salpn）（H2O）]＋ cations and [Fe（CN）5NO]2-anion are connected into a one-dimensional zigzag chain through hydrogen bonding interactions.
基金supported by NNSFC (No.21001071)Foundation for University Key Teacher by Henan Educational Committee (2010GGJS-157)NSF of Henan Educational Committee (2011B150028)
文摘A novel zinc（Ⅱ） complex of empirical formula,ZnL2（L=anionic forms of S-benzyl-β-N-（2,4-dichlorobenzylidene） hydrazine carbodithioate）,has been synthesized and characterized by elemental analysis,IR spectra and single-crystal X-ray diffraction.The crystal belongs to the triclinic system,space group P with a = 9.3168（9）,b = 13.0353（13）,c = 14.7702（15） ,α = 71.2860（10）,= 87.5140（10）,γ = 79.4480（10）o,V = 1670.0（3） 3,Z = 2,Mr = 773.93,Dc = 1.539 g/cm3,μ = 1.334 mm-1,F（000） = 784,the final R = 0.0403 and wR = 0.0800 for 4060 observed reflections with I〉2（I）.In the crystal structure,the zinc（Ⅱ） complex has a distorted tetrahedral geometry in which the zinc ion is coordinated by the nitrogen and sulfur atoms from two Schiff base ligands,respectively.The preliminary bioassay indicates that the Schiff base and its zinc complex exhibit inhibitory activity against the human gastric cancer cell lines（MKN45） and hepatoma cell lines（HepG2）.
基金supported by the National Natural Science Foundation of China (20871099)the Natural Science Foundation of Gansu Province (0710RJZA113)
文摘A novel dinuclear copper（Ⅱ） complex [CuL（NO3）]2·2MeOH was obtained by the coordination reaction of Cu（NO3）2·3H2O with ligand HL （HL=N-（methyl-2-benzimidazol- methylidene）-2-hydroxyaniline）. The single-crystal X-ray analysis has revealed that the complex crystallizes in triclinic, space group P with a=9.535（3）, b=10.009（3）, c=10.666（4） , α=104.303（4）, β=100.105（4）, γ=115.917（4）o, V=839.0（5） 3, C16H16CuN4O5, Mr=407.87, Z=2, Dc=1.614 g/cm3, F（000）=418, μ=1.338 mm-1, R=0.0543 and wR=0.0980. The basic dinuclear copper（Ⅱ） complex units [CuL（NO3）]2 are formed by NO3- as co-bridging ligands and L as NNO tridentate chelate coordinating to the copper ions. The ladder-like one-dimensional chain motifs are formed by O…H-O and O…H-N hydrogen bonds from methanol molecules connecting the dinuclear copper（Ⅱ） units.
基金supported by the National Natural Science Foundation of China(No.21272008)the Natural Science Industry-University-Research Foundation of Suzhou University(2015hx014)
文摘Two new mononuclear complexes, namely [Co（L）2]（1） and [Mn（L）2]（2）（HL = N-（3-methylsalicylidene）tryptamine）, have been synthesized by the reactions of the ligand with cobalt acetate or manganese acetate in anhydrous ethanol. The crystal structures of the complexes were characterized by IR spectrum, elemental analysis, PXRD and single-crystal X-ray diffraction analysis. Complex 1 crystallizes in monoclinic, space group C2/c, with a = 23.146（2）, b = 9.4864（10）, c = 13.9261（15）A, β = 102.898（2）°, V = 2980.6（5） ？3, Z = 4, Dc = 1.367 g/cm3, F（000） = 1284 and μ = 0.616 mm^-1. Complex 2 crystallizes in monoclinic, space group P21/n, with a = 14.807（11）, b = 13.118（10）, c = 16.663（13） A, β = 111.237（14）°, V = 3017（4） A^3, Z = 4, Dc = 1.342 g/cm^3, F（000） = 1276 and μ = 0.477 mm-1. The units of complex 1 are linked by intermolecular N–H…π hydrogen bonds into infinite 1D chains, which are further extended into a 3D supramolecular structure by a series of π···π stacking interactions. The units of complex 2 are linked by intermolecular N–H…π hydrogen bonds and C–H…π hydrogen bonds into an infinite 3D supramolecular structure. Meanwhile, the antibacterial activities of the ligand and its complexes have been tested against four kinds of bacteria. The results show that the three compounds all have excellent antibacterial activities and that 1 and 2 possess stronger inhibiting effects against the bacteria than the Schiff base.
基金supported by the National Natural Science Foundation of China(No.21406085)the Science Development Project of Jilin Province(20130522071JH)
文摘We synthesized one novel Schiff-base ligand by modifying the aromatic aldehyde： H2L^1（H2L^1 = N,N？-bis（2-oxy-acetate-3-methoxyl）benzylpropylene（1,3-propane）diamine）. [Ni（C（23）H（24）N2O8）]·6H2O]（1） was prepared by the reaction between H2L^1 and NiCl2·6H2O in C2H5 OH. Compound 1 was structurally characterized by elemental analysis, IR, H NMR and single-crystal X-ray diffraction. 1 crystallizes in monoclinic system, space group P21/n with a = 1.3952（4）, b = 1.3746（9）, c = 1.6121（0） nm, β = 112.66（3）°, V = 2.8533（4） nm^3, Z = 4, Mr = 623.25 and Dc = 1.451 g·cm^（-3）. The Ni（Ⅱ） atom is hexa-coordinated to furnish a slightly distorted octahedral geometry. Lattice water molecules are found in 1, and the H-bonding intersections formed novel water clusters. The IR, antibacterial activity and luminescence of 1 are studied.
文摘The title complex ZnCl 2 (salaad) 2 (salaad= N salicylidene 1 aminoadamantane) was synthesized and characterized by X ray diffraction analysis. The crystal crystallizes in orthorhombic system, space group P bca with a =1 503 2(3), b =1 819 5(4), c =2 330 2(5) nm, V =6 373(2) nm, Z =8, D c = 1 348 g/cm 3 , μ =0 971 mm -1 (Mo Kα ), F (000)=2 720. The structure was refined to R =0 048 9 and wR = 0 094 3 for observed 2 978 reflections with I≥2σ(I) . The Zn(Ⅱ) ion has a distorted tetrahedral coordination consisting of two chlorine ions and the two oxygen atoms from two Schiff base ligands.
文摘The novel dinuclear copper(Ⅱ) complex with with N (2,4 dihydroxybenzalidene) o aminobenzoic acid ligand, [Cu(C14H9NO4)]2· 2H2O, has been synthesized and characterized by elemental analysis, IR, UV Vis and thermal analysis. Its crystal structure was determined by single crystal X ray diffraction techniques. The crystal belongs to monoclinic with space group P21/c. The cell parameters are: a=0.82510(11)nm, b=0.68870(9)nm, c=2.3007(3)nm, β =100.847(2)° , V=1.2840(3)nm3, Z=2, Dc=1.742Mg· m- 3, μ (MoKα )=1.723mm- 1, F(000)=684. The structure was refined to final R1=0.0267, wR2=0.0735. The complex molecule structure has dinuclear centrosymmetric dimeric structure in which a planar Cu2O2 core features. The ligand N (2,4 dihydroxybenzalidene) o aminobenzoic acid dianion is μ 2 tridentate, chelating one copper? ion via one nitrogen, one hydroxy oxygen atom and one carboxylate oxygen atom, and the hydroxy oxygen atom simultaneously coordinates to the other copper? ion of the dimer. In the structure the copper? ion rendered four coordination in a distorted square planar geometry structure. CCDC: 212695.
文摘The coordination compound of [Pb（PNS）（NO3）Cl]·H2O was synthesized by using ligand PNS and lead nitrate.The molecular structure of [Pb（PNS）（NO3）Cl]·H2O was determined by using a single crystal diffraction analysis.The crystal belongs to triclinic with space group P1-.The unit cell parameters are as follows:a=0.7634（3）nm,b=0.7794（3）nm,c=1.0679（5）nm,d=102.087（13）°,β=91.605（13）°,（γ=91.605（10）°,V=0.6262（5）nm3,Z=2,Mr=2.582g/cm3）,μ=13.709mm-1,F（000）=452,R1=0.0355,wR2=0.0785 for the title complex.In [Pb（PNS）（NO3）Cl]·H2O,the Pb（Ⅱ） ion has a distorted square pyramided coordination geometry coordinated by two N and one O atoms from PNS,one Cl-ion and one 0 atom from nitrate ion.
