Synthesis,Crystal Structure,Fluorescence, Thermal Stability and Magnetic Properties of the Dinuclear Manganese(Ⅱ) Complex [Mn_2(L)_2(2,2'-bipy)_2(H_2O)_5]_2·3H_2O

A new dinuclear manganese complex [Mn2(L)2(2,2'-bipy)2(H2O)5]2·3H2O has been synthesized with Mn SO4·H2O, 2,2'-bibenzoic acid(H2L) and 2,2'-bipyridine(2,2'-bipy) in the mixed solvent ethanol and water. It crystallizes in monoclinic, space group P1 with a = 9.9944(10), b = 21.939(2), c = 25.628(3) ?, α = 108.429(3), β = 100.613(4), γ = 102.821(3)o, V = 4997.9(9) ?3, Dc = 1.355 g/cm3, Z = 2, F(000) = 2108, GOOF = 1.074, the R = 0.0626 and w R = 0.1531. The structure of the complex contains two [Mn2(L)2(2,2'-bipy)2] units, ten coordinated H2 O molecules and three uncoordinated H2 O molecules. The fluorescence, thermal stability and magnetic properties of the complex were investigated.     

铜-有机多酸配合物[CuⅠ(2,2'-bipy)2]{[CuⅡ(2,2'-bipy)2]2(BW12O40)}·4H2O 的原位合成、晶体结构与表征

在水热条件下,K5BW12O4·nH2O,CuSO4·5H2O,2,2'-联吡啶-3,3'-二羧酸在水溶液中进行原位反应,得到一维链状化合物[CuⅠ(2,2'-bipy)2]{[CuⅡ(2,2'-bipy)2]2(BW12O40)}·4H2O,并对其进行了元素分析,IR,TG,CV和单晶X射线衍射表征.结果表明,化合物属于单斜晶系,P21/n空间群,晶胞参数a=1.88365(14)nm,b=2.04178(15)nm,c=2.16724(16)nm,α=90°,β=96.6720(10)°,γ=90°,V=8.2786(11)nm3,Z=4,Dc=3.255 g/cm3,R1=0.0575,wR2=0.1073.化合物分子结构单元由1个铜-有机多酸阴离子{[CuⅡ(2,2'-bipy)2]2(BW12O40)}-,1个配位阳离子[CuⅠ(2,2'-bipy)2]+,4个结晶水分子构成.化合物分子通过氧键和π-π堆积作用形成二维超分子体系.电化学研究表明,化合物存在三步氧化还原过程.     

新型一维配位聚合物{[Cu(H2L)(HL)](ClO4)·3H2O}n的合成及其晶体结构

Cu(ClO4)2·6H2O与H2L{L=[2,3-f]-吡嗪[1,10]邻菲咯啉-2,3-二甲酸}反应合成了新型一维配位聚合物{ [Cu(H2L) (HL)] (C1O4)· 3H2O}n(1),其结构经UV,IR,XRD和元素分析表征. 1属单斜晶系,空间群C2/c,晶胞参数a=3.575 9(13) nm,b=0.962 7(3)nm,c=2.127 5(10)nm,β=116.106(8)°,V=6.577(5) nm3,Z=8,Dc=1.730 g·cm-3,Mr=856.56,F(000)=3 480,μ=0.837nm-1,R=0.082 6,wR=0.248.Cu2+分别与1个H2L的两个氮原子,2个不同μ2-HL的两个氮原子和一个羧酸氧原子配位,形成畸变四方锥的五配位构型.Cu(Ⅱ)通过HL桥联形成一维链,相邻一维链的芳环π-π堆积和分子间氢键作用使1构筑成三维超分子结构.     

Synthesis and Crystal Structure of [{Mn(IBG)(2,2'-bipy)(H_2O)}·4H_2O]_n

A novel MnⅡ complex [{Mn(IBG)(2,2'-bipy)(H2O)}·4H2O]n 1(H2IBG=isophtha-loylbisglycine and 2,2'-bipy = 2,2'-bipyridine) has been synthesized and characterized by singlecrystal X-ray diffraction,elemental analysis,IR spectra and thermogravimetric analysis.It crystallizes in monoclinic,space group P21/n,with a=13.667(2),b=14.045(2),c=14.195(2),β=101.483(3)°,V=2670.1(7)3,Z=4,C22H26N4O11Mn,Mr=577.41,Dc=1.436 g/cm3,F(000)=1196.0,μ(MoKα)=0.558 mm-1,the final R=0.0578 and wR=0.1460 for 2974 observed reflections with I2σ(I).In the structure,the MnⅡ atom is coordinated in a distorted octahedral environment arranged by one water molecule,one 2,2'-bipy ligand and two IBG ligands.     

含新颖一维金属氧簇阳离子的聚金属氧簇化合物[{M(2,2''-bipy)}5O14]4-[2,2''-H2bipy]2(As2W18O62)2·8H2O(M=Mo,W)的合成、晶体结构与表征

以Na2WO4·2H2O,Na2MoO4·2H2O,Na2HAsO4·7H2O和2,2'-bipyridine为原料,在水热条件下制得了含一维阳离子的聚金属氧簇化合物:[{M(2,2'-bipy)}5O14]4[2,2'-H2bipy]2(As2W18O62)2·8H2O(M=Mo/W;2,2'-bipy=2,2'-bipyridyl),并用元素分析,IR,TG和单晶X-ray衍射等手段进行了表征.标题化合物属于单斜晶系,C2/c空间群,a=4.1721(5)nm,b=2.4629(5)nm,c=1.7541(5)nm,β=91.119(3)°,V=18.021(5)nm3,Z=2,R1=0.0629,wR2=0.1605[I>2σ(I)].标题化合物的阳离子链由五元金属氧簇构筑块[{M(2,2'-bipy)}5O14]2 通过氧原子桥联而成,构筑块[{M(2,2'-bipy)}5O14]2 中的五个金属原子呈畸变的"A"字型排布,阳离子展现出新颖的一维锯齿链状结构.     

Anderson-B-型多金属氧酸盐[Co(2,2''-bipy)3]H-[Al(OH)6(Mo6O18)]·5H2O的合成及晶体结构

以AlCl3·6H2O、Na2MoO4·2H2O、CoCl2·6H2O和2,2'-联吡啶为主要原料合成了Anderson-B-型多金属氧酸盐[Co(2,2'-bipy)3]H[Al(OH)6(Mo6O18)]·5H2O,进行了红外光谱、紫外光谱、差热分析和单晶结构测定.晶体学测定结果表明,化合物属于三斜晶系,Pi空间群,晶胞参数:a=1.216 0(2),b=1.221 5(2),c=1.780 0(4)nm,α=86.83(3)°,β=88.76(3)°,γ=89.82(3)°,V=2.639 4(9)nm3,Z=2,R1=0.079 4,wR2=0.176 6.化合物结构分析表明,在晶体学上,标题化合物分子是由1个[Co(2,2'-bipy)3]2+配阳离子,1个H+离子,2个1/2[Al(OH)6(Mo6O18)]3-多阴离子和5个结晶水分子组成.多阴离子[Al(OH)6(Mo6-O18)]3-借助水分子和金属配离子通过超分子作用形成二维网状结构,网状结构之间又借助超分子作用形成三维无限伸展结构.差热分析表明,标题化合物的失重过程分为2步,多阴离子骨架破坏温度为547.5℃.     

铜-有机多酸配合物[CuI(2,2'-bipy)_2]{[CuII(2,2'-bipy)_2]_2(BW_(12)O_(40))}·4H_2O的原位合成、晶体结构与表征

在水热条件下,K5BW12O4·nH2O,CuSO4·5H2O,2,2'-联吡啶-3,3'-二羧酸在水溶液中进行原位反应,得到一维链状化合物[CuI(2,2'-bipy)2]{[CuII(2,2'-bipy)2]2(BW12O40)}·4H2O,并对其进行了元素分析,IR,TG,CV和单晶X射线衍射表征.结果表明,化合物属于单斜晶系,P21/n空间群,晶胞参数a=1.88365(14)nm,b=2.04178(15)nm,c=2.16724(16)nm,α=90°,β=96.6720(10)°,γ=90°,V=8.2786(11)nm3,Z=4,Dc=3.255g/cm3,R1=0.0575,wR2=0.1073.化合物分子结构单元由1个铜-有机多酸阴离子{[CuII(2,2'-bipy)2]2(BW12O40)}-,1个配位阳离子[CuI(2,2'-bipy)2]+,4个结晶水分子构成.化合物分子通过氢键和π-π堆积作用形成二维超分子体系.电化学研究表明,化合物存在三步氧化还原过程.     

Co(2,2'-bipy)(H2O)V2O6的合成及其晶体结构

以Co(NO3)2,2,2'-联吡啶(2,2'-bipy)及NaVO3为原料,采用水热法于200 ℃合成了一种新的有机-无机杂化材料--Co(2,2'-bipy)(H2O)V2O6(1),其结构经IR,热重分析及X-射线单晶衍射表征.结果表明,1属于单钭晶系,空间群为P21/c,晶胞参数为:a=7.855 6(3)(A),b=21.056 2(5)(A),c=9.552 1(6)A,α=90.000°,β=110.236(5)°,γ=90.000°,V=1 423.65(8)(A)3,Z=2,Dc=2.126 g·cm-3,μ(Mo Kα)=2.548mm-1,R1=0.058 6,wR2=0.093 5.1为一种二维层状结构,由[VO4]四面体通过共顶点构成的一维钒氧链,链与链之间以[Co(2,2'-bipy)(H2O)]2 基团连接而成.     

超分子化合物[M(4,4''''-bipy)2(H2O)4]·(4,4''''-bipy)2·(3,5-diaba)2·8H2O](M=Co,Ni,Cd)的合成及晶体结构

合成了3个超分子化合物[M(4,4'-bipy)2(H2O)4]·(4,4'-bipy)2·(3,5-diaba)2·8H2O(M=Co(1),Ni(2),Cd(3);4,4'-bipy=4,4'-联吡啶;3,5-diaba=3,5-二氨基苯甲酸阴离子),用红外光谱、元素分析及X-射线单晶衍射进行了表征。3个化合物的晶体都属于单斜晶系,空间群为P2/c。晶体学参数:化合物1:a=0.9389(2)nm,b=0.7751(1)nm,c=3.9284(6)nm,β=90.14(2)°,V=2.85880(69)nm3,Z=4,Dc=1.397g·cm-3,F(000)=1266,μ=0.380mm-1,R1=0.0349,wR2=0.0829;化合物2:a=0.9383(2)nm,b=0.7753(1)nm,c=3.9218(6)nm,β=90.09(1)°,V=2.85280(68)nm3,Z=2,Dc=1.399g·cm-3,F(000)=1268,μ=0.420mm-1,R1=0.0366,wR2=0.0805;化合物3:a=0.94091(13)nm,b=0.77885(11)nm,c=3.9712(5)nm,β=90.10°,V=2.9102(7)nm3,Z=2,Dc=1.433g·cm-3,F(000)=1308,μ=0.454mm-1,R1=0.0468,wR2=0.0964。3,5-diaba未参与配位,在配位阳离子[M(4,4'-bipy)2(H2O)4]2 中,金属离子M髤与来自2个4,4'-bipy的2个氮原子和4个水分子的氧原子配位,呈八面体的几何构型。分子中还存在未配位的4,4'-bipy。通过配位阳离子、游离4,4'-bipy及未配位的3,5-diaba间的丰富氢键,构建成具有三维结构的超分子化合物。     

三维超分子化合物[Mn(phen)3 ]2(H3O)O40 ]·2H2 O的水热合成与结构表征

利用水热合成方法制备了Keggin结构多金属氧酸盐[Mn(phen)3]2(H3O)·2H2O,用元素分析、红外光谱、热分析和X射线单晶衍射测试技术对其结构进行了表征. 结果表明,该化合物属于单斜晶系,C2/c空间群,a=2.728 5(3) nm,b=2.506 0(3) nm,c=1.633 6(18) nm,β=104.911(2)°,V=10.79 4(2) nm3,Z=4,R1=0.078 4,wR2=0.199 9. 化合物分子结构单元由1个Keggin结构多金属氧酸盐阴离子5-,2个配位阳离子[Mn(phen)3]2+,1个质子和2个结晶水分子构成. 化合物分子之间通过π-π堆积作用形成了三维超分子结构.     

A Three-dimensional Supramolecular Complex {[Co(H2btec)(2,2'-bipy)(H2O)3]·H2O}n Assembled via Hydrogen Bonding and π-π Stacking Interactions

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 characterized by single-crystal X-ray diffraction, elemental analysis, IR and X-ray powder diffraction. The crystal belongs to the triclinic system, space group P-1, with a = 7.230(3), b = 11.626(5), c =14.001(6) (A), α = 108.12(0)°, β= 95.85(0)°, V= 1095.33(157)(A)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.     

{(n-Bu4N)2[Mo2O2S6Cu6Br4(4,4'-bipy)3]·0.5H2O}n的合成与晶体结构

Cluster coordination polymer {(n-Bu4N)2[Mo2O2S6Cu6Br4(4,4'-bipy)3]·0.5H2O)}n (4,4'-bipy=4,4'-bipyridine),has been synthesized and characterized by X-ray crystallography. The polymeric anion {[Mo2O2S6Cu6Br4(4,4'-bipy)3]2-}n is composed of secondary building units (SBUs) [MoOS3Cu3], Br atoms and 4,4'-bipy ligands. Two secondary building units [MoOS3Cu3] and a double parallel 4,4'-bipy ligands form an octanuclear rectangular metallamacrocycle with the dimension of 1.13×0.39 nm2, which is further connected by single bridging 4,4'-bipy ligands to form a 1D zigzag structure. Crystal data for compound 1: C62H97N8O2.50S6Br4Cu6Mo2,M=2 079.68, Triclinic, P1, a=0.982 40 (10) nm, b=1.293 70(10) nm, c=1.737 4(2) nm, α=97.810(10)°,β=101.390(10)°,γ=108.520(10)°, V=2.005 1(4) nm3, Z=2, Dc=1.722 g·cm-3, F(000)= 1039,μ (Mo Kα)=4.055 mm-1, the final R=0.040 7, wR2=0.097 2. CCDC: 236407.     

三维多孔配位聚合物{[Zn2(mal)2(4,4''-bipy)(H2O)2]·2(H2O)0.25}∞(mal=丙二酸根)的合成、结构及性质研究

ZnO,丙二酸及4,4'-bipy按物质的量之比1∶3∶0.3溶于H2O和DMF混合溶剂中(体积比4∶1),形成的无色溶液在50℃反应3d,得到了标题化合物{[Zn2(mal)2(4,4'-bipy)(H2O)2]?2(H2O)0.25}∞(mal=丙二酸根),对其进行了元素分析、红外光谱和X射线衍射表征,测定了晶体结构.该聚合物属单斜晶系,P21/n空间群,a=0.71215(16)nm,b=1.8685(4)nm,c=0.73890(17)nm,β=91.486(5)°,V=0.9829(4)nm3,Z=4,Dc=1.811g/cm3,Mr=268.03,F(000)=542,μ=25.02cm-1.最终偏离因子R1=0.0499,wR2=0.1374.该化合物中Zn原子和三个丙二酸根中的4个O原子、一个水分子和4,4'-bipy的一个N原子配位,形成的ZnNO5八面体通过4,4'-bipy和丙二酸根桥联,组成一种新颖的三维多孔结构,其孔道中充填游离水分子.此外还研究了该聚合物的热性质.     

Solvothermal Synthesis, Crystal Structure and Electrochemical Property of Complex [Co(p-MBA)2(2,2'-bipy)(H2O)]·(H2O)

One novel complex [Co(p-MBA)2(2,2'-bipy)(H2O)]·(H2O) has been synthesized by the reaction of p-methylbenzoic acid with 2,2'-bipyridine in the solvent mixture of water and methanol. It crystallizes in triclinic, space group P-1 with a=0.70479(14), b=1.1211(2), c=1.6718(3) nm, α=103.806(3), β=90.795(3), γ=104.207(3)°, V=1.2399(4) nm3, Mr=512.41, Dc=1.373 g/cm3, Z=2, F(000)=532, μ=0.733 mm-1, R=0.0432 and wR=0.0957. The crystal structural analysis shows that the cobalt atom is coordinated with three oxygen atoms from two p-methylbenzoic acids and one water molecule and two nitrogen atoms from one 2,2'-bipyridine,forming a distorted square-pyramidal coordination geometry. The cyclic voltammetry behavior of the complex is also reported.     

An Unusual Binodal （4,12）-Connected 3D Supramolecular Network Based on [Mn4（OH）e（H20）2]6＋ Subunits

A new two-dimensional Mnn metal-organic framework (MOF), [Mn4(μ3-OH)2L2 (4,4'-bipy)2(H20)2]·H2O (1, H3L = 5-oxyacetateisophthalic acid, 4,4'-bipy = 4,4'-bipyridine) has been synthesized by the hydrothe...     

新型一维梯状双链配位聚合物{[Cu(malate)(2,2′-bipy)]·3H_2O}_∞的合成、晶体结构与表征

合成了铜(II)与羟基丁二酸和2,2′-联吡啶形成的配位聚合物{[Cu(malate)(2,2′-bipy)]?3H2O}∞(其中malate=羟基丁二酸根,2,2'-bipy=2,2'-联吡啶),通过X射线衍射测定了单晶结构,并进行了元素分析、红外光谱、紫外光谱、热分析等研究.配合物属单斜晶系,空间群P2(1)/c;晶胞参数a=0.70132(10)nm,b=1.9730(3)nm,c=1.18998(16)nm,β=94.551(3)°;Z=2;最终偏离因子R=0.0483.配合物中每个铜(II)原子与来自2,2'-联吡啶的两个氮原子和两个羟基丁二酸根的三个氧原子配位,形成畸变的三角双锥结构单元.每个羟基丁二酸根以R构型方式桥联两个三角双锥结构单元,沿a轴方向无限延伸形成一维链.两条平行链以面对面的方式重叠,彼此吡啶环之间存在强的π-π相互作用,加之C吡啶环—H…O羧基弱相互作用形成新颖的梯状双链结构,比邻的梯状双链又通过分子间O羟基—H…O羧基氢键沿a轴方向共同构筑了具有隧道的三维结构.     

新颖的(4,4'-bipy){[Ag(4,4'-bipy)]3[PMoⅥ12O40]}·H2O三维超分子多金属氧酸盐的合成和晶体结构

利用H3PMo12O40·4H2O,4,4'-bipy和AgNO3反应,在中温水热条件下合成了一种新颖的三维超分子多金属氧酸盐 (4,4'-bipy){[Ag(4,4'-bipy)]3 [PmoⅥ12O40]}· H2O(1),并通过元素分析、红外光谱、热重分析和X射线单晶衍射对其结构进行了表征.结果表明,该化合物属三斜晶系,P1空间群,晶胞参数a=1.1275(2)nm,b=1.1910(2)nm,c=1.2898(3)nm,α= 112.63(3)°,β=94.63(3)°,γ=99.53(3)°,V=1.5567(5)nm3,Z=1.该化合物具有三维超分子结构及荧光性质.     

配合物[Zn(BCBI)2(H2O)4]·2H2O的合成及其晶体结构

以 ZnCl2,1,3-二羧甲基苯并咪唑为原料,采用常温溶剂挥发法,在甲醇水溶液中合成了Zn(Ⅱ)配合物{[Zn(BCBI)2(H2O)4]·2H2O(1) },其结构经IR,元素分析和X-射线单晶衍射表征.1属三斜晶系,P -1空间群,晶胞参数a=7.400 9(15)(A),b=9.406 6(19)(A),c=9.655 9(19)(A),α=81.58(3)°,β=75.97(3)°,γ=78.08(3)°,V=634.8(2)(A)3,Z=1,Dc=1.674 mg·cm-3,μ=1.050 mm-1,S=1.023.1中Zn(Ⅱ)与六个氧原子配位(两个氧原子来自两个配体H2BCBI分子中的羧基氧,四个氧原子为四个H2O的氧原子)形成变形的八面体构型.1的分子间氢键及H2BCBI间的π-π堆积将其拓展为三维结构,并对稳定晶体结构起着重要作用.     

Hydrothermal Syntheses and Crystal Structures of Two Complexes with Cyclic Dimer and 2D Network Structures of 3-Nitrophthalate and N-Donor Ligand

Two complexes, [Cd(nphth)(2,2'-bipy)(H2O)]2·2H2O(1) and [Cd(nphth)(4,4'-bipy)(H2O)]n(2)(nphth = 3-nitrophthalate, 2,2'-bipy = 2,2'-bipyridine, 4,4'-bipy = 4,4'-bipyridine), were synthesized by hydrothermal reactions and structurally characterized. Complex 1 crystallizes in triclinic with space group P1, a = 0.7599(4), b = 1.0551(6), c = 1.2448(6) nm, α = 88.96(2), β = 75.40(2), γ = 76.76(2)°, V = 0.9393(9) nm3, Z = 1, Dc = 1.816 Mg/m3, F(000) = 512, μ = 1.217 mm-1, S = 0.946, the final R = 0.0238 and w R = 0.0631. Complex 2 crystallizes in monoclinic, space group P21/c, a = 0.737(5), b = 2.338(1), c = 1.0030(6) nm, β = 96.359(9)°, V = 1.803(2) nm3, Z = 4, Dc = 1.826 Mg/m3, F(000) = 984, μ = 1.260 mm-1, S = 1.016, the final R = 0.0455 and wR = 0.1007. Complex 1 exhibits a discrete cyclic binuclear structure and complex 2 possesses a 2D layer structure with cyclic binuclear unit. The fluorescent spectrum study shows that complex 1 exhibits fluorescent emission in the solid state at room temperature.     

Hydrothermal Synthesis and Crystal Structure of a Keggin Polyoxometalate [CoⅡ(2,2'-bipy)2(H2O)]2[SiWVI12O40]·2H2O

A Keggin-type tungstosilicate compound [CoII(2,2'-bipy)2(H2O)]2[SiWVI12O40]·2H2O1 (bipy = bipyridine) was prepared by a hydrothermal method for the first time. Single-crystal X-ray diffraction revealed that 1 (C4H40Co2N8O44SiW12) crystallizes in the triclinic system, space group P1 with a = 10.4979(6), b = 13.3946(7), c = 13.5756(8) (A°), α= 70.0769(18), β= 68.910(3), y = 74.186(4)°,V =1649.84(16) (A°)3, M, = 3688.95, Z =1, Dc= 3.713 mg.m-3,μ= 21.432 mm-1, F(000) = 1644, S =1.058, the final R = 0.0511 and wR = 0.1023 for 6523 observed reflections (I> 2σ(I)). Compound 1 consists of two coordinated cation fragments [CoII(2,2'-bipy)2(H2O)]2+, one normal Keggin polyanion unit [SiWVI12O40]4- and two lattice water molecules. To be noted, each polyanion unit is linked to two cation fragments by its two surface terminal oxygen atoms and two cobalt atoms of two cation fragments forming an organic-inorganic hybrid unit in 1. Furthermore, the compound shows strong photo-luminescence property in the solid state at room temperature.