A Stable 'Three-in-one'Coordination Polymer

The title compound[Cu2(IB)2(HIB)2]1 was synthesized via the hydrothermal reaction of CuSO4·5H2O and NaOH with 4-(1H-Imidazol-1-yl)benzoic acid(HIB),and characte-rized by elemental analysis and infrared spectra.The crystal of 1 crystallizes in monoclinic,space group C2/c with a=24.513(8),b=18.948(5),c=17.248(6)(A),β=119.81(2)°,V=6951(4)(A)3,Z=8,C40H30Cu2N8O8,Mr=877.80,Dc=1.678 g/cm3,F(000)=3584 and μ(MoKa)=1.295 mm-1.The final R=0.0542 and wR=0.1335 for 5398 observed reflections with I>2σ(I)and R=0.0845 and wR=0.1520 for all data.X-ray diffraction analysis reveals that the title complex is a unique 'three-in-one'crystal of coordination network through strong hydrogen bonds and coordination covalent bonds.The thermogravimetric analysis measurement showed that compound 1 has thermal stability as no strictly clean weight loss step occurs below 300℃.     

双环[2.2.2]辛-7-烯-2，3，5，6-四羧酸铜配合物的合成和晶体结构研究

以双环[2.2.2]辛-7-烯-2,3,5,6-四羧酸(H4L)为配体,采用水热法合成了个铜配合物[Cu2L2(H2O)2](2),并得到单晶,同时在水热条件下得到了化合物H4L.2H2O(1)的晶体。分别对化合物1和2进行了元素分析、红外光谱等分析,并用X-射线单晶衍射测定了化合物的单晶结构。化合物1属于三斜晶系,P1空间群,化合物1的晶体学数据为:a=0.88554(15)nm,b=0.95566(16)nm,c=1.043 88(17)nm,α=110.863(3)°,β=91.127(3)°,γ=91.429(3)°,V=0.824 9(2)nm3,Z=2,Mr=366.32,Dc=1.475 g.cm-3,F(000)=388,μ=0.129,R1=0.067 0,wR2=0.189 3;配合物2属于正交晶系,Pnnm空间群,配合物2的晶体学数据为:a=2.766 8(6)nm,b=0.638 75(14)nm,c=0.737 32(16)nm,V=1.303 1(5)nm3,Z=4,Mr=442.31,Dc=2.254 g.cm-3,F(000)=884,μ=3.324,R1=0.059 4和wR2=0.191 7。化合物1通过氢键形成三维网状结构,配合物2中的中心离子有3种配位方式,通过不同的配位方式也形成三维结构。     

Syntheses and Crystal Structures of Two Heterobimetallic Clusters [WOS_3Cu_3I(dmpzm)_2]·2(MeCN)_(0.5) and [WS_4Cu_4I_2(dmpzm)_2]·DMF(dmpzm=Bis(3,5-dimethylpyrazolyl)methane)

The reaction of [Et4N]2WOS3 with three equiv.of CuI and dmpzm in MeCN afforded [WOS3Cu3I(dmpzm)2]·2(MeCN)0.5(1·2(MeCN)0.5) while that of [PPh4]2WS4 with four equiv.of CuI in DMF/MeCN followed by the addition of two equiv.of dmpzm in MeOH gave rise to [WS4Cu4I2(dmpzm)2]·DMF(2·DMF).Both compounds were characterized by elemental analysis,IR,and single-crystal X-ray diffraction analysis.1·2(MeCN)0.5 crystallizes in triclinic,space group P1-with a = 11.4552(5),b = 11.6735(3),c = 16.2278(9) ,α = 99.537(9),β = 101.986(2),γ = 118.464(13)o,V = 1775.5(3)3,Z = 2,μ = 6.080 mm-1,Dc = 1.983 Mg/m3,T = 193(2) K,C24H35Cu3IN9OS3W,Mr = 1063.22,F(000) = 1018,S = 1.060,R = 0.0376 and wR = 0.0870.2·DMF belongs to the orthorhombic system,space group Pmn21 with a = 22.145(4),b = 11.464(2),c = 7.7370(15) ,V = 1964.2(6)3,Z = 2,μ = 6.865 mm-1,Dc = 2.189 Mg/m3,T = 193(2) K,C25H39Cu4I2N9OS4W,Mr = 1301.72,F(000) = 1226,R = 0.0632,wR = 0.1706 and S = 1.130.1·2(MeCN)0.5 consists of one CuI and two [Cu(dmpzm)]+ fragments that are linked by [WOS3]2-species via six Cu-S bonds,forming a nido-like [WS3Cu3] core.2·DMF contains a saddle-shaped [WS4Cu4] core with two iodides coordinated at two Cu centers in a cis position and two dmpzm ligands being chelated at another two Cu centers in a cis position.     

两个基于双咪唑基配体的Co(Ⅱ)/Cu(Ⅰ)配合物的合成、晶体结构及荧光性质

以Co(ClO4)2·6H2O/Cu(ClO4)2·6H2O、1,4-双(咪唑基-1-基)丁烷(bib)/1,4-双(咪唑基-1-基)苯(bix)和4,4-(1,3-苯基双(亚甲基氧基))二苯甲酸(H2pmda)为原料,在水热条件下反应,得到了2个配合物{[Co(bib)3](ClO4)2}n(1)和{[Cu3(bix)(4.5)](ClO4)3}n(2)(H2pmda未参与反应),对它们进行了元素分析、红外光谱、荧光光谱、单晶和粉末X射线衍射表征。配合物1属于三方晶系,R 空间群,a=b=1.39337(5)nm,c=1.74054(13)nm,V=2.9265(3)nm^3,Mr=828.59,Dc=1.410g·cm^-3,F(000)=1293,μ=0.639mm^-1,Z=3,R1=0.0611,wR2=0.1937(I>(2σ(I))。配合物2也属于三方晶系,P 空间群,a=b=2.33441(15)nm,c=0.71511(9)nm,V=3.3749(5)nm^3,Mr=1561.28,Dc=1.536g·cm^-3,F(000)=1602,μ=1.131mm^-1,Z=2,R1=0.0439,wR2=0.1090(I>(2σ(I))。单晶结构分析表明配合物1为含有36元环的二维网状结构,配合物2为含有84元环的二维网状结构,并通过氢键或π-π堆积使它们扩展成超分子结构。此外,还研究了2个配合物的荧光性质。     

Hydrothermal Synthesis and Crystal Structure of One Novel 1-D Copper(Ⅱ)-organic Framework:{[Cu_2(PP)_2(CBPC)]_2·7H_2O}_n

One novel 1-D copper(Ⅱ)-organic compound,namely {[Cu2(PP)2(CBPC)]2·7H2O}n(1,H2CBPC=1-[(2'-carboxybiphenyl-4-yl)methyl]-2-propylimidazole-4-carboxylic acid,HPP=3-(2-pyridyl)pyrazole),was synthesized under hydrothermal conditions.X-ray diffraction analyses reveal that the two Cu(Ⅱ) ions in the distorted dimer [Cu2(PP)2] of 1 are linked by the carboxylate oxygen atoms on the phenyl and imidazole rings,respectively,forming one interesting snake-like chain.Single-crystal X-ray analyses reveal that it crystallizes in monoclinic,space group C2/c with a=30.656(8),b=12.715(3),c=22.405(5),β=122.758(3)°,V=7344(3)3,Z=4,Mr=1681.65,Dc=1.521 g/cm3,F(000)=3464,μ=1.221 mm-1,the final R=0.0453 and wR=0.1023 for 4617 observed reflections with Ⅰ 2σ(Ⅰ).     

Syntheses, Crystal Structures and Antibacterial Activities of Copper（Ⅱ） and Zinc（Ⅱ） Complexes Based on （E）-4-fluoro-2-（（3-morpholinopropylimino）methyl）phenol

Two Schiff base complexes [Cu(L)2] (1) and [Zn(L)2]·3H2O(2) of (E)-4-fluoro-2-((3-morpholino propylimino)methyl)phenol (HL) have been synthesized and characterized by elemental analysis and single-crystal X-ray diffraction. Crystal data for 1: triclinic, space group Pī with a=4.8000(10), b=11.109(2), c=13.921(3),α=66.55(3),β=80.35(3),γ=81.09(3)°, V=668.2(2)3 , Z=1, Dc=1.477g/cm 3 , F(000)=311, and the final R=0.0744 and wR=0.1601 for 2301 observed reflections with I > 2σ(I). And those for 2: monoclinic, space group P21 /c with a=14.789(3), b=11.713(2), c=18.846(4),β=107.85(3)°, V=3107.4(11)3 , Z=4, D c=1.389 g/cm 3 , F(000)=1368, and the final R=0.0749 and wR=0.1348 for 5423 observed reflections with I > 2σ(I). Both 1 and 2 are four-coordinated complexes, with a square-planar geometry of copper(Ⅱ) in 1 and a slightly distorted tetrahedral geometry of zinc(Ⅱ) in 2. An asymmetric unit consists of only one half of a Cu ion and one L ligand in 1, while an asymmetric unit is composed of one Zn ion, two L ligands and three water molecules in 2. Non-classical C-H···O and C-H F hydrogen bonds play important roles in the formation of a 1D chain of 1, but O-H O and O-H N hydrogen bonds play dominant roles in the self-assembly of a 3D network of 2. The antibacterial activities of 1 and 2 against B. subtilis, S. aureus, S. faecalis, P. aeruginosa, E. coli and E. cloacae have been evaluated by MTT method.     

Syntheses and Crystal Structures of Cobalt(II) Chloride Complexes of 1,3-Bis(pyridyl-4-ylthio)propan-2-one

1 INTRODUCTION Widespread interest of metal-organic coordination compounds has been stirred by their intriguing struc- tural topologies and promising properties[1]. Al- though structural motifs of coordination compounds are mainly defined by metal ions’ coordination pre- ferences and chemical structures of organic ligands including the molecular angle, length and relative orientation of the donor groups[2], numerous other factors such as solvent systems, concentration, coun- terions and e…     

Synthesis,Crystal Structure and Photoluminescence of a Three-dimensional Zinc(Ⅱ) Coordination Polymer with(20~3)_2(20)_3 Topology

The title compound,[Zn2(H2C4BIm)(ox)2]·2H2O(1,H2C4BIm = 2,2'-(1,4-bu-tanediyl)bis(1H-benzimidazole),has been synthesized by the hydrothermal reaction of Zn(NO3)2·6H2O with H2C4BIm and Na2C2O4 in water solution.It crystallizes in the triclinic system,space group P1 with a = 9.445(9),b = 9.598(9),c = 14.962(14) ,α = 72.160(10),β = 79.905(12),γ = 83.680(11)°,Mr = 633.18,V = 1269(2) 3,Z = 2,Dc = 1.657 g/cm3,F(000) = 644,μ = 1.953 mm-1,the final R = 0.0671 and wR = 0.1689.X-ray crystal structure analysis revealed that 1 is a 3D network with(203)2(20)3 topology in which the ZnII atom can be considered as a 3-connected node and both ox2-and H2C4BIm serve as the linear linkers.     

Two New Three-dimensional Supramolecular Complexes with 5-Carboxyl-1-carboxymethyl-2-oxidopyridinium: Syntheses and Crystal Structures

Two new supramolecular complexes [MnL(H2O) 4](1) and [ZnL(H2O) 5]·0.25H2O(2) (H2L = 5-carboxy-1-carboxymethyl-2-oxidopyridinium) have been synthesized and structurally characterized by elemental analysis,IR and X-ray single-crystal structure determination. Complex 1 crystallizes in the monoclinic system,space group P21/n with a = 5.1537(2) ,b = 21.2008(9) ,c = 10.9727(4) ,β = 99.182(2) °,V = 1183.54(8) 3,C8H13MnNO9,Mr = 322.13,Dc = 1.808,Z = 4,F(000) = 660,μ = 1.160,R = 0.0372 and wR = 0.0750 for 2217 observed reflections(I > 2σ(I)) . Complex 2 crystallizes in the triclinic system,space group P1 with a = 7.730(2) ,b = 8.030(2) ,c = 11.400(2) ,α = 104.27(3) ,β = 92.93(3) ,γ = 102.67(3) °,V = 664.9(2) 3,C8H15.5ZnNO10.25,Mr = 355.08,Dc = 1.774,Z = 2,F(000) = 365,μ = 1.899,R = 0.0243 and wR = 0.0695 for 2759 observed reflections(I > 2σ(I)) . Their thermal properties have been studied.     

Synthesis and Crystal Structure of a New Mononuclear Copper( Ⅱ ) Complex: [Cu(BMI)_4(SO_4)]·DMF·2H_2O

A new copper(II) complex, [Cu(BMI)4(SO4)]·DMF·2H2O (BMI = benzimida- zole), has been synthesized by the treatment of CuCN with 2-mercaptobenzimidazole in the presence of 1,10-phenanthroline, and characterized by single-crystal X-ray diffraction. It crystalli- zes in monoclinic, space group P21/n with a = 17.6260(4), b = 11.1252(3), c = 18.6573(4)(A),β = 107.9010(10)°, V = 3481.45(14)(A)3, Z = 4, C31H35CuN9O7S, Mr = 741.28, F(000) = 1540, Dc = 1.414 g/cm3, μ = 0.746 mm-1, the final R = 0.0649 and wR = 0.1609 for 4382 observed reflections with I > 2σ(I). The Cu(II) atom is coordinated by five unidentate ligands (one sulfate and four benzimidazole ligands) generated in situ, displaying a slightly distorted square pyramid geometry.     

Synthesis, Structure and Spectral Characterization of a Discrete Binuclear Copper (II) Complex

1　ＩＮＴＲＯＤＵＣＴＩＯＮＲｅｃｅｎｔｌｙ,ｂｒｉｄｇｅｄｂｉｎｕｃｌｅａｒｃｏｍｐｌｅｘｅｓｏｆｆｉｒｓｔｒｏｗｔｒａｎｓｉｔｉｏｎｍｅｔａｌｓｈａｖｅｒｅｃｅｉｖｅｄｍｕｃｈａｔｔｅｎｔｉｏｎｏｎａｃｃｏｕｎｔｏｆｔｈｅｉｒｂｉｏｌｏｇｉｃａｌｒｅｌｅｖａｎｃｅａｎｄｃｏｎｄｅｎｓｅｄｐｈａｓｅｍａｇｎｅｔｉｃｐｒｏｐｅｒｔｉｅｓ[1,2].Ｉｎｔｈｅｓｅｒｅｓｅａｒｃｈｅｓ,ｍａｎｙｂｒｉｄｇｅｄｌｉｇａｎｄｓｗｈｉｃｈｐｌａｙｉｍｐｏｒｔａｎｔｒｏｌｅｓｈａｖｅｂｅｅｎｕｓｅｄａｓｕｓｅｆｕｌ…     

Synthesis,Structure and Luminescent Properties of [Zn(btzb)2Cl2]·2H2O[btzb=1,2-Bis(5-tetrazolyl)benzene]

The title compound[Zn(btzb)2Cl2]·2H2O(1·2H2O,btzb=1,2-bis(5-tetrazolyl)benzene)was synthesized in situ by the[2 3] cycloaddition reaction of phthalonitrile with NaN3 in water in the presence of ZnCl2 under refluxing conditions.1·2H2O crystallizes in the monoclinic system,space group P21/c with a=9.0119(18),b=7.5566(15),c=18.076(5)(A),β=114.67(2)°,V=1118.6(4)(A)3,Z=2,Dc=1.784 g/cm3 T=223(2)K,C16H16N16O2Cl2Zn,Mr=600.74,F(000)=608,μ(MoKα)=1.393 mm-1,S=1.081,R=0.0306 and wR=0.0669 for 1896 observed reflections with Ⅰ ＞2σ(Ⅰ).The Zn2 ion of 1 is coordinated by four N atoms from two btzb ligands and two Cl atoms,forming a distorted octahedral coordination geometry.A number of intermolecular hydrogen bonding interactions between molecules 1 and/or the solvated water molecules result in a 3D hydrogen-bonded structure.The luminescent property of 1·2H2O was also investigated.     

Two Cobalt(Ⅱ) Complexes Derived from the Hydrolysis Product of Di-Schiff Base Ligand N,N'-Bis-(1-benzimidazo-2-ylethylidene)-ethane-1,2-diamine: Preparation,Characterization and Crystal Structure of the 6-Coordinate Species [CoL2]X·H2O (X = ClO4-,NO3-)

The reactions of Co(CIO4)2.6H2O and Co(NO3)2·6H2O with the di-Schiff base ligand N,N'-bis-(1-benzimidazo-2-yl-ethylidene)-ethane-1,2-diamine (LA) in ethanol have been investigated.The reactions of LA with excess amount of cobalt salts yield the six-coordinate complexes [CoL2](CIO4)2·H2O 1 and [CoL2](NO3)2·H2O 2 as isolatable products (L = N-(1-benzimidazo-2-yl-ethylidene)-ethane-1,2-diamine), where L is a tri-dentate mono-Schiff base ligand, resulting from the hydrolysis of the precursor di-Schiff base LA.Both complexes were characterized by X-ray crystallography.Crystal data for complex 1: monoclinic, space group P21/c, a = 11.9214(10), b = 23.5828(17), c = 14.0387(12)(A), β= 135.219[4]°,C22H30CI2CoN9O9,Mr = 680.37, V = 2780.1(4)(A)3, Z = 4, Dc = 1.625 g/cm3,μ(MoKa) = 0.876 mm-1, F(000) = 1404,the final R = 0.0725 and wR = 0.1530 for 5726 observed reflections (I＞2σ(I)).Crystal data for complex 2: monoclinic, space group P21/c, a = 18.2162(16), b = 10.0610(6), c = 18.593(2)(A),β=130.099(3)°, C22H30CoN10O7, Mr = 605.49, V = 2606.5(4)(A)3, Z = 4, Dc = 1.543 g/cm3,μ(MoKα)= 0.722 mm-1, F(000) = 1260, the final R = 0.0619 and wR = 0.1429 for 5194 observed reflections (I ＞ 2σ(I)).X-ray diffraction analysis reveals that each cobalt atom in the two complexes is chelated by six nitrogen atoms from two tridentate iigands L, exhibiting a slightly distorted octahedral coordination sphere.In both complexes, the strong hydrogen-bonding interactions between the lattice waters and N-H groups of the ligands result in 1D chains which are further connected by ClO4- (or NO3-) groups to form a 3D framework.In complex 2, the strong π-π interactions increase the stability of the structure.     

1,3-二(4-咪唑基)苯构筑的两个金属-有机框架化合物:合成、晶体结构和荧光性质（英文）

利用1,3-二(4-咪唑基)苯(L)和过渡金属盐反应,通过水热法方法合成了2个新颖的金属有机框架化合物:[Cd(L)(SO4)]n(1)和{[Ni(L)(SO4)]·H2O}n(2)。利用元素分析、红外、粉末衍射、热重分析等对MOFs进行了表征。通过X射线单晶衍射表明:1属于正交晶系,Pnma空间群,a=0.70728(5)nm,b=1.34381(9)nm,c=1.40731(9)nm,V=1.33758(16)nm^3,Dc=2.079 g·cm^-3,Z=4,F(000)=824,GOF=1.072,R1=0.0190,wR2=0.0506。2属于三斜晶系,P1空间群,a=0.98665(18)nm,b=1.1457(2)nm,c=1.3025(2)nm,α=65.029(3)°,β=83.497(3)°,γ=86.423(4)°,V=1.3260(4)nm^3,Dc=1.441 g·cm^-3,Z=2,F(000)=592,GOF=1.016,R1=0.0434,wR2=0.0771。2个MOFs均为二维的层状结构。此外,对MOFs的热稳定性和荧光性质也进行了研究。     

Synthesis, Crystal Structure and DNA Binding Studies of a Nickel（II） Complex with 2-Aminomethylbenzimidazole and Demethylcantharate

A new mixed-ligand nickel(Ⅱ) complex, [Ni(L)(DCA)(H2O)]·2H2O (L = C8H9N3, 2-aminomethyl-benzimidazole, DCA2- = 7-oxabicyclo[2,2,1]heptane-2,3-dicarboxylate, demethylcantharate, C8H8O5), has been synthesized and characterized. The structure of the complex was determined by single-crystal X-ray diffraction. It is of monoclinic system, space group P21/c with a = 7.7211(7), b = 12.0799(12), c = 19.7867(19), β = 100.390(6)°, V = 1815.2(3) nm3, Dc = 1.625 g·cm-3, Ζ = 4, F(000) = 928, R = 0.0314 and wR = 0.0822. In addition, the interaction between the complex and DNA was studied by means of fluorescence spectra and viscosity. The results indicate that the complex binds to DNA by the mode of partial intercalation with the Stern-Volmer constants Ksv of 3.81 × 104 mol·L-1.     

Hydrothermal Synthesis,Crystal Structure and Magnetic Behavior of a Novel 3D Supramolecular Complex [Cu（HDPPZC）（SO4）（H2 O）]2

In the title coordination compound,[Cu(HDPPZC)(SO4)(H2O)]2 (1,HDPPZC=dipyrido[3,2-a:2,3-c]-phenazine-2-carboxylic acid),has been hydrothermally synthesized and characterized by single-crystal X-ray diffraction,elemental analysis and magnetic susceptibility measurement.It crystallizes in triclinic,space group P1 with a=0.69485(6),b=0.76878(4),c=1.76638(13)nm,α=99.437(6),β=94.690(6),γ=95.735(6)o,V=0.92151(12) nm 3,Z=1,Cu2C38 H24 N 8S2O14,Mr=1007.85,Dc= 1.816 g·cm-3,F(000)=510,GOOF=0.988,the final R=0.0580 and wR=0.0689.The structural analyses reveal that complex 1 shows discrete dinuclear clusters,which are further linked by hydrogen bonding and π·π stacking interactions to form a three-dimensional supramolecular compound.Magnetic measurement shows ferromagnetic and antiferromagnetic exchange interactions in the sample.     

The First Example of a Supramolecular Structure Containing [2-（1H-Pyrazol-3-yl）-pyridine] Complex and both α- and β-Octamolybdates

The title compound, [Ni（C8N3H7）3]4[Mo8O26]2·6H2O 1, has been synthesized from the reaction of 2-（1H-pyrazol-3-yl）-pyridine （L） with （NH4）2MoO4·2H2O and NiCl2·6H2O. Elemental analysis, IR, UV spectra and X-ray single-crystal diffraction were carried out to determine the composition and crystal structure of the compound. Crystal data： C96H96Mo16N36Ni4O58, Mr = 4451.97, monoclinic system, space group P21/n, a = 20.846（5）, b = 14.825（5）, c = 23.122（5） A ,β= 91.594（5）°, V = 7143（3）A^3, Z = 2, F（000） = 4344, Dc = 2.070 g/cm^3,μ = 1.968 mm^-1, R = 0.0452 and wR = 0.1056 for 17102 independent reflections （Rint = 0.0442） and 11074 observed reflections （I 〉 2σ（I））. Structural analysis indicates that two kinds of octamolybdates （[α-Mo8026]^4- and [β-Mo8026]^4-） co-exist in the compound. This is the first example of a supramolecular structure containing L complex as well as both α- and β-octamolybdate clusters.     

Two Zinc（Ⅱ） Carboxyarylphosphonates with Unusual Polynuclear Zn（Ⅱ） Units：Syntheses and Crystal Structures

[Zn2(PCP)(phen)(H2O)F]n 1 and {[Zn3(MCP)2(phen)2(H2O)]·2.5H2O}n 2(PCP = p-O2C(C6H4)PO33-,MCP = m-O2C(C6H4)PO33- and phen = phenanthroline) were obtained by hydrothermal synthesis and characterized by X-ray single-crystal diffraction.Compound 1 crystallizes in the monoclinic P21/c space group with a = 7.908(2),b = 20.254(3),c = 13.477(2) ,β = 107.76(3)°,V = 2055.7(8) 3,Z = 4,C20H16FN2O6PZn2,Mr = 561.10,Dc = 1.813 g/cm3,μ = 2.463 mm-1,F(000) = 1128,the final R = 0.0340 and wR = 0.0794.Compound 2 crystallizes in the monoclinic P21/n space group with a = 15.629(3),b = 18.141(4),c = 17.723(7) ,β = 121.89(2)°,V = 4267(2) 3,Z = 4,C40H31N4O13.5P2Zn3,Mr = 1041.70,Dc = 1.620 g/cm3,μ = 1.818 mm-1,F(000) = 2108,the final R = 0.0669 and wR = 0.1775.In compound 1,the tetranuclear Zn4 units are linked together by μ4-PCP3- to build 2D(4,4) layers,which are further interconnected through the μ2-bridging fluorion into a 3D framework with 1D phen ligands-filled channels.As for the 3D supramolecular framework of 2,the novel hexanuclear Zn6 units with "chair" conformation are extended by the moieties of μ4-MCP3- ligand to a 2D(4,4) layer on the bc plane,which is viewed as the 2-folded layers in 1.In both compounds,the structures are stabilized by hydrogen bonding interactions and π-π stacking interactions between the phen rings.Additionally,FT-IR spectroscopy and the fluorescent properties are discussed.     

Synthesis and Crystal Structure of [Cu3（dmpzm）4（μ-1, 3-dca）2（dca）4]·2H2O （dmpzm = 1,1＇-Methylenebis- （3,5-dimethyl-1H-pyrazole）, dca = dicyanamide）

The title compound, [Cu3（dmpzm）4（μ-1,3-dca）2（dca）4]·2H2O （dmpzm = 1,1＇-methylenebis（3,5-dimethyl-lH-pyrazole）, dca = dicyanamide） 1·2H2O, was synthesized via the reaction of CuCl2·2H2O with dmpzm and Na（dca）, and characterized by elemental analysis and IR spectra. 1·2H2O crystallizes in the monoclinic system, space group C2/m with a = 13.578（3）, b = 16.769（3）, c = 14.769（3） A, β = 104.10（3）° V = 3261.4（11） A^3, Z = 2, Dc = 1.466 g/cm^3, T = 153（2） K, C56H68N34O2Cu3, Mr = 1440.09, F（000） = 1490,μ（MoKa） = 1.040 mm^-1, S = 1.150, R = 0.0553 and wR = 0.1123 for 2744 observed reflections with I 〉 2σ（I）. The central copper atom is chelated by two dmpzm ligands and coordinated by two bridging dca anions, forming a slightly distorted octahedral geometry. The two external copper atoms adopt a square-pyramidal coordination geometry, coordinated by one chelating dmpzm ligand and one bridging and two terminal dca anions. Two intermolecular hydrogen bonding interactions result in the formation of a 2D （4,4） hydrogen-bonded network.     

Syntheses and Crystal Structures of Two Complexes with 3-（3-Pyridyl）acrylic Acid

1 INTRODUCTION A recent feature in the development and progress of chemical research is the concern for molecular assemblies, ensembles, and all of structural aggre- gates[1]. The self-assembly of transition metal ions and N-containing organic ligands has been proven a popular approach for the construction of supramo- lecular architecture[2～7]. 3-(3-Pyridyl)acrylic acid is an excellent ligand, not only due to its prolific coor- dination sites but also to its potential hydrogen bon- ding…