双—（磷酸二甲酯）合锌的结构与光谱

由四圆衍射仪收集标题化合物Zn(DMP)_2的衍射数据。用直接法解出其单晶结构为:空间群Pc,a=0.9361(2),b=1.0519(3).c=1.2028(2)nm. β=91.01(2)°,Z=4.锌原子与4个配体的非酯氧原子形成ZnO_4四面体。具有近似的T_d对称性。相邻锌原子由“O—P—O”桥相连,形成一维链状配位聚合物。红外光谱证实O—P—O基的形成。对某些重要的谱带进行了解释,说明了Zn—O振动与配位阴离子振动的混合情况。     

吡啶—2,6二甲酸铕配合物的晶体结构研究

合成了吡啶—2,6二甲酸铕配合物Na_3[Eu(DPC)_3]·14H_2O(DPC为吡啶—2,6二甲酸根)晶体,对该配合物的红外光谱、荧光光谱、热谱及电导等性质进行了研究.单晶结构分析表明,Na_3[Eu(DPC)_3]·14H_2O属三斜晶系,空间点群P(?).晶胞参数:a=1.1000(10),b=1.7268(22),c=1.0314(14)nm;α=102.53(11)°,β=107.05(8)°,γ=74.53(9)°;V=1.7845nm~3;Z=2;D_c=1.80g/cm~3;μ=18.9cm~(-1).吡啶—2,6二甲酸以三齿配位,铕的配位数为9,其配位多面体为畸变的三帽三角棱柱体.     

二乙三胺五乙酸与镧铜异核配合物{[La4Cu9(DTPA)6(H2O)16].26H2O}n的晶体结构

在水溶液中合成了二乙三胺五乙酸与镧铜异核配合物兰色棱柱状晶体,用X射线衍射方法测定了配合物的晶体结构.其结构式为{[La_4Cu_9(DTPA)_6(H_2O)_(16)]·26H_2O}_n,DTPA为二乙三胺五乙酸根.晶体属三斜晶系,空间群为P(?)每一晶胞中有1个配合单元,形成网状结构,晶胞参数如下:a=1.5635(5),b=1.6496(6),c=1.7116(3)nm,α=89.07(2),β=73.91(2),γ=65.82(3)°,V=3.839nm~3,Ζ=1,D_(calc)=1.822g/cm~3,D_(ex)=1.831g/cm~3.配合物中镧离子有两种配位方式,配位数一种是8,另一种是9,其配位多面体分别为双冠和三冠三角棱柱体;铜离子也有两种配位方式,配位数一种是6,另一种是5,分别形成八面体和四方锥型配位多面体.     

吡啶3-羧酸铽(铕)配合物的合成及其晶体结构

合成了吡啶3-羧酸铽(铕)配合物晶体,元素分析表明化学式为Ln(3-PYA)_3·2H_2O(Ln=Tb.Eu,3-PYA为吡啶3-羧酸)。对该配合物的红外光谱、荧光光谱、热谱及电导等性质进行了研究。吡啶3-羧酸铽的X射线衍射单晶结构分析表明,配合物为二聚体,属单斜晶系,空间点群P_(21/c),晶胞参数:a=0.9609(6)nm,b=1.1649(3)nm,c=1.7758(8)nm,β=91.75(5)°,V=1.9869nm~3,Z=2,D_(calc)=1.88g/cm~3,μ=36.5cm~(-1)。Tb~(3 )离子的配位数为8,是由吡啶3-羧酸分子中的两个氧,四个桥连吡啶3-羧酸分子中的四个氧,两个水分子的两个氧,共八个氧配位,其配位多面体为畸变12面体。两个Tb~(3 )是由四个吡啶3-羧酸的羧基氧桥连起来形成二聚体。     

水合五异硫氰铬(Ⅲ)酸钾的18-冠-6配合物的合成、性质及晶体和分子结构

在硅凝胶中培养了标题配合物的单晶,确定了它的组成,并进行了热谱、可见光谱、红外光谱及其他多项物理性质的测试和表征,其结果与单晶X射线衍射分析的结果一致。晶体学数据:分子式[K(18-冠-6)(H_2O)][K(18-冠-6)][Cr(H_2O)(NCS)_5]·H_2O,空间群C_(2h)~5—P2_1/n,a=8.592(5),b=22.976(10),c=24.372(4)A,13=96.57(4)~0,Z=4。结构用直接法解出,全矩阵最小二乘方修正,R=0.046。结果表明,铬(Ⅲ)由五个异硫氯酸根离子和一水分子配位形成一畸变八面体形的配合阴离子。一个钾离子由一个冠醚和另一水分子配位;另一钾离子由另一冠醚和一配位于铬(Ⅲ)的硫氯酸根的硫原子配位,即该N(3)-C(3)-S(3)桥连在Cr和K(2)之间;两钾离子均是7配位。第三个水分子通过氢键与阴离子的配位水分子和两个冠醚环上的醚氧原子相连。     

钐与磷酸二甲酯配合物的合成和结构

合成了钐与磷酸二甲酯的配合物,该配合物的组成为Sm〔(CH_3O)_2PO_2〕_3,测定了该配合物的红外和拉曼光谱。x射线单晶衍射法测定配合物的晶体属单斜晶系,P2_(1/c)空间群,α=10.434(4)A,b=16.541(3)A,c=10.804(4)A,β=111.75(3)°,V=1731.7(9)A~3,Z=4。钐与6个氧原子配位,每2个相邻的钐原子通过双“O—P—O”桥相连接,形成奇特的“双桥24元环”的环套环网状结构。钐氧配位多面体为稍微扭曲的正八面体。     

水合二高碘酸氢合铜(Ⅲ)酸钾钠配合物的合成、结构与光谱性质

本文报道了碱溶液中获得组份为Na_4K[Cu(HIO_6)_2]·12H_2O晶体配合物.用X-射线衍射法测定了晶体结构.晶体属单斜晶系,P2_1/c空间群,a=6.108(2)(?),b=25.055(10)(?),c=14.716(7)(?),β=97.77(3)°,V=2231(2)(?)~3,D_c=2.555g/cm~3,Z=4.晶体中二个畸变的IO_5(OH)八面体与中心铜原子螯合,构成CuO_4平面;Cu—O平均键长为1.83(?);加上CuO_4平面上侧与铜原子形成弱配位的氧原子;共有五个氧原子与铜原子构成近似为C_(2v)点群对称的四方单锥多面体.在碱性水溶液中,配合物的紫外吸收峰的衰减表明,[Cu(HIO_6)_2]~(5-)还原为一级反应.     

两个具有松散配位的三核钼簇合物{Mo_3(μ_3—S)(μ—S)_3[S_2P(OEt)_2]_4(C_3H_3ON)}·CH_3CN(Ⅰ){Mo_3(μ_3—O)(μ—S)_3[S_2P(OEt)_2]_4(C_3H_3ON)}(Ⅱ)的合成和晶体结构

本文报道了两个具有松散配位的三核钼簇合物{Mo_3(μ_3—S)(μ—S)_3[S_2P(OEt)_2]_4·(C_3H_3ON)}·CH_3GN(Ⅰ)、{Mo_3(μ_3—O)(μ—S)_3[S_2P(OEt)_2]_4(C_3H_3ON)}(Ⅱ)的合成和晶体结构。簇合物(Ⅰ)属单斜晶系,空间群为P2_2/n,晶胞参数为a=16.579(3),b=16.959(2),c=16.867(2);β=94.44(1)°;v=4728 3;Z=4;D_c=1.778g·cm~(-3),用Patterson法解出结构,最终偏离因子R=0.045。簇合物(Ⅱ)属三斜晶系,空间群为P1,晶胞参数为a=13.175(4),b=13.372(6),c=16.656(3);α=117.87(4)°,β=60.09(3)°,γ=109.03(3)°;ν=2231 3;Z=2;D_c=1.798g·cm~(-3),用直接法解出结构,最终偏离因子R=0.066。两个簇合物均为以具有一个松散配位为特征的单帽三核簇,而且松散配位上均被一嘿唑五员环所占据,其主要差别在于簇合物(Ⅰ)的簇胳为Mo_3S_4,而簇合物(Ⅱ)则为一Mo_3OS_3·文中对这一“松散”配位的三核钼簇合物的活泼性进行了讨论。     

新型—维锯齿链状聚金属氧酸盐配位聚合物［｛La(DMSO)_6(H_2O)}·(PMo_(12)O_(40))·H_2O］_n的合成、结构及表征

以a-H_3PMo_(12)O_(40)·nH_2O, La_2O_3和二甲基亚砜（DMSO）为原料，在 乙腈和水的混合溶剂中制得了一维锯齿链状配位聚合物［｛La(DMSO)_6(H_2O)}· (PMo_(12)O_(40))·H_2O］_n,X射线单晶衍射结果表明，聚合物中金属配阳离子与 杂多阴离子骨架通过Mo-O_d-La-O_d-Mo相连并形成一维无限链，每一个不对称结构 单元中含一个结晶水，La~(3+)的配位数为九，三帽三棱柱构型，配位氧原子分别 来自6个DMSO分子，1个H_2O分子和2个相邻杂多阴离子的端氧，晶体氧于单斜晶系 ，P2_1/c空间群，a=1.3916(3)nm,b=1.7058(3)nm,c=2.4750(5)nm,β=99.16(3)~° ,Z=4,V=5.800(2)nm~3,D_c=2.825g/cm~3,R_1=0.0446,wR_2=0.0871,IR光谱和X射线 单晶衍射结果一致表明，在固态条件下配阳离子和杂多阴离子之间存在相互作用， UV光谱表明，在稀的水溶液中，由于溶剂化作用，杂多阴离子与配阳离子处于解离 状态，热性质研究表明，形成标题化合物后，杂多阴离子的热稳定性与磷钼酸相比 明显增强。     

新型—维锯齿链状聚金属氧酸盐配位聚合物［｛La(DMSO)_6(H_2O)}·(PMo_(12)O_(40))·H_2O］_n的合成、结构及表征

以a-H_3PMo_(12)O_(40)·nH_2O, La_2O_3和二甲基亚砜（DMSO）为原料，在 乙腈和水的混合溶剂中制得了一维锯齿链状配位聚合物［｛La(DMSO)_6(H_2O)}· (PMo_(12)O_(40))·H_2O］_n,X射线单晶衍射结果表明，聚合物中金属配阳离子与 杂多阴离子骨架通过Mo-O_d-La-O_d-Mo相连并形成一维无限链，每一个不对称结构 单元中含一个结晶水，La~(3+)的配位数为九，三帽三棱柱构型，配位氧原子分别 来自6个DMSO分子，1个H_2O分子和2个相邻杂多阴离子的端氧，晶体氧于单斜晶系 ，P2_1/c空间群，a=1.3916(3)nm,b=1.7058(3)nm,c=2.4750(5)nm,β=99.16(3)~° ,Z=4,V=5.800(2)nm~3,D_c=2.825g/cm~3,R_1=0.0446,wR_2=0.0871,IR光谱和X射线 单晶衍射结果一致表明，在固态条件下配阳离子和杂多阴离子之间存在相互作用， UV光谱表明，在稀的水溶液中，由于溶剂化作用，杂多阴离子与配阳离子处于解离 状态，热性质研究表明，形成标题化合物后，杂多阴离子的热稳定性与磷钼酸相比 明显增强。     

CRYSTAL STRUCTURE OF A HETERONUCLEAR LANTHANIDE COMPLEX OF ERBIUM-YTTRIUM AND GLYCINE[ErY(GlY)_6(H_2O)_4](ClO_4)_65H_2O

The title complex [ErY(Gly)_6(H_2O)_4](ClO_4)_6 5H_2O has been synthesized.Its crystalstructure has been determined by X-ray diffraction method.The crystal is triclinic with space groupP1.The unit cell parameters are as follows:a=11.518(4),b=14.105(7),c=15.530(6) ,α=96.61(3),β=102.74(3),γ=105.70(3)°,V=2327.7(17) ~3,Z=2,Dc=2.091g/cm~3.The structure has been refinedto a final R of 0.0785.The crystal is an infinite chain complex,in which four carboxyl groups fromglycine molecules bridge the Er(Ⅲ)and Y(Ⅲ)ion,other two carboxyl groups bridge two adjacentEr(Ⅲ)or two Y(Ⅲ)ions.     

双核锡配合物[Sn2Cl6(μ-OH)2(DMF)2]·4DMF的合成和晶体结构

A binuclear tin complex [Sn_2Cl_6(μ-OH)_2(DMF)_2]·4DMF has been synthesized through direct reaction of SnCl_4·5H_2O with DMF. Its molecular and crystal structure has been determined by single X-ray diffraction technique. The crystal is triclinic with space group P1. The unit cell parameters are a=0.9153(2), b=1.0722(3), c=1.2192(3) nm, α=63.07(2), β=93.26(2), γ=65.75 (2), V=0.92821(36) nm, D_c=1.649 g·cm~(-3), Z=1, The tin atom in the complex takes six-coordinated distorted octahedral configuration with sp~3 d~2 hybrid. The two tin atoms are connected through hydroxyl bridge to form a plane at the molecular center. The four noncoordinated DMF molecules distribute symmetrically around the dimer. The whole complex has an inversion center which coincides with the gravity center of the parallelogram.     

Synthesis and Crystal Structure of a Three-dimensional Mn(Ⅱ) Coordination Polymer with 3-(Pyrazin-2-yloxy)-pyridine and Azide Anion as Mixed Bridge Ligand

A three-dimensional coordination polymer [Mn2(μ1,3-N3)4(μ-PP)2]n(PP = 3-(pyra-zin-2-yloxy)-pyridine) has been synthesized with 3-(pyrazin-2-yloxy)-pyridine and azide anion as mixed bridge ligand,and its crystal structure was determined by X-ray crystallography.The crystal data:triclinic system,space group P,with a = 6.794(4),b = 9.885(6),c = 9.947(6) ,α = 64.170(6),β = 84.190(8),γ = 85.319(8)°,V = 597.7(6) 3,Z = 1,C18H14Mn2N18O2,Mr = 624.35,Dc = 1.735 g/cm3,F(000) = 314 and μ = 1.117 mm-1.In the crystal,the azide anion acts as a bridge ligand and makes adjacent Mn(II) ions connect into a two-dimensional sheet on the ab plane,then 3-(pyrazin-2-yloxy)-pyridine serves as a bidentate bridge ligand to connect neighboring sheets along the c axis,and finally a three-dimensional structure is formed.     

钬与β-丙氨酸配合物的合成、表征及晶体结构

报道了稀土金属Ho与b丙氨酸配合物的合成、分子结构和晶体结构的测定, 具体结果如下: 化学式C18H50Cl6Ho2N6O41, 分子式{[Ho2(bala)6(H2O)4](ClO4)6H2O}n (bala = b丙氨酸), 三斜晶系, P空间群, 晶胞参数: a = 9.199(2), b = 12.870(2), c = 21.620(5) , a = 76.92(1), b = 81.15(1), g = 82.91(1), V = 2453.2(8) ?, Z = 2, Mr = 1549.2, = 3.649, F(000) = 1528, Dc = 2.097 g/cm3. 配合物为无限链状分子, Ho(III)离子为九配位的单帽四方反棱柱配位多面体。     

Synthesis and Crystal Structure of a Three-dimensional Cd(Ⅱ) Coordination Polymer [Cd(μ1,3-SCN)(μ3-pco)]n (pco = Pyrazine-2-carboxylate 4-oxide Anion)

The three-dimensional complex [Cd(μ1,3-SCN)(μ3-pco)]n has been synthesized with μ1,3-SCN- and pco as mixed bridged ligands. The crystal belongs to monoclinic, space group P21/n with a = 10.3777(16), b = 6.2592(9), c = 13.150(2) (A), β= 97.317(2)°, V=847.2(2) (A)3, Z= 4,C6H3CdN3O3S, Mr = 309.575, Dc = 2.427 g/cm3, F(000) = 592 and μ = 2.804 mm-1. The structure was refined to R = 0.0255 and wR = 0.0550 for 1712 observed reflections (I＞2σ(I)). In the crystal the Cd(Ⅱ) ions are coordinated by μ1,3-SCN- and μ3-pco bridge ligands to form a three-dimensional structure.     

{H[Cu(trans-Hcydta)]·2Bzim·1.5H2O·0.5MeOH·HClO4}的合成、结构和量子化学研究

The novel complex HCu(trans-Hcydta)?2Bzim?1.5H2O?0.5MeOH?HClO4 has been synthesized in aqueous solution, where Hcydta=1,2-cyclohexanediamine-tetraceticacid, Bzim=benzimidazole. The crystal structure of the copper complex has been determined by X-ray diffraction. The crystal belongs to monoclinic, with space group P2(1) /c with a=1.6360(6), b=1.3814(5), c=1.5503(5) nm, β=90.885(7)o, V=3.503(2) nm3, Z=4, Dx=1.495 g/cm3, μ(MoKa)=7.74 cm-1, F(000)=1640, R1=0.0750, wR=0.1526. The bond lengths of Cu-O are 0.2191(4), 0.1974(4), 0.1932(4) nm, respectively. The copperatom has a distorted cone. The study on the title complex has been performed, with quantum chemistry calculation by means of G98W package and taking Lanl2dz basis set.     

镨、钕、钇、甘氨酸三元配合物的晶体结构

在水溶液中培养了镨、钕、钇与甘氨酸形成的三元配合物。元素分析和热分析表明，该配合物可用Ｐｒ_ｘＮｄ_ｙＹ_ｚ（Ｇｌｙ）_６（Ｈ_２Ｏ）_４（ＣｌＯ_４）_６·５Ｈ_２Ｏ（Ｘ＋ｙ＋ｚ＝２）表示其分子式。Ｘ射线衍射方法测定了其单晶结构，结果表明，该晶体属三斜晶系，空间群Ｐ１，化学式Ｐｒ_（０．７７５）Ｎｄ_（０．７００）Ｙ_（０．５２５）Ｃｌ_６Ｏ_（４５）Ｎ_６Ｃ_（１２）Ｈ_（４８），Ｍ_ｒ＝１４６６．０９，晶胞参数如下：ａ＝１１．５６４（１），ｂ＝１４．１１８（３），ｃ＝１５．６６８（２）Ａ，α＝９６．９９（１），β＝１０２．７２（１），γ＝１０５．３３（１）°，晶胞体积Ｖ＝２３６２（１）Ａ~３，Ｚ＝２，Ｄ_ｃ＝２．０６０ｇ／ｃｍ~３，结构偏离因子Ｒ＝０．０３２，Ｒ_ｗ＝０．０４８。晶胞中存在两个络合单元，每个单元可用Ｍ_１Ｍ２（Ｇｌｙ）_６（ＣｌＯ_４）_６（Ｈ_２Ｏ）_４．５Ｈ_２Ｏ表示，Ｍ_１＝０．４Ｐｒ＋０．３７５Ｎｄ＋０．２２５Ｙ，Ｍ２＝０．３７５Ｐｒ＋０．３２５Ｎｄ＋０．３０Ｙ。三种稀土元素按一定比例统计性地占有两个格位。羧基以桥式联结金属离子，形成一维链式聚合物结构。在络合单元中，一个稀土离子是９配位，其配位多面体为畸变?     

Crystal Structure of a Threedimensional Coordination Polymer {[Ca3(μ5-OOCCH2OCH2COO)3(H2O)4]·4H2O}n

A novel three-dimensional coordination polymer, {[Ca3(μ5-OOCCH2OCH2COO)3(H2O)4]·4H2O}n, has been synthesized with oxydiacetate as bridge ligand and structurally determined by X-ray crystallography. The crystal belongs to monoclinic, space group C2/c with a = 17.805(2), b = 9.3923(12), c = 17.255(2)(A), β = 107.838(5)°, V = 2746.8(6) (A)3, Mr = 660.58, C12H28Ca3O23, Dc = 1.597 g/cm3, μ = 0.695 mm-1, Z = 4, F(000) = 1376, GOOF = 1.027, R = 0.0303 and wR = 0.0660. In the complex there are two coordination modes for Ca(Ⅱ) ions, one coordinated by three μ5-OOCCH2OCH2COO2- bridge ligands together with two H2O molecules, and the other by five μ5-OOCCH2OCH2COO2- bridge ligands. In both coordination modes each Ca(Ⅱ) ion assumes a distorted dipentapyramidal CaO7 geometry; whereas each oxydiacetate is coordinated with five Ca(Ⅱ) ions and acts as a pentdentates bridge ligand.     

Synthesis and Crystal Structure of a Three-dimensional Cd(II) Coordination Polymer [Cd(μ_(1,3)-SCN)(μ_3-pco)]_n(pco=Pyrazine-2-carboxylate 4-oxide Anion)

1 INTRODUCTION For a long time much research interest has been focused on coordination polymeric compounds[1] because these new coordination polymers may afford new materials with useful properties, such as catalytic activity, micro-porosity, electrical conduc- tivity, non-linear optical activity, magnetic coupling behavior and so on[2]. Thiocyanate anion is a very useful bridging ligand, and many complexes[3～5] are synthesized with it as bridging ligand and some of them exhibit interesti…     

STRUCTURE STUDIES OF [Et_4N]_4[Cu_8(i-mnt)_6] (i-mnt=S_2C=C(CN)_2) AND [Me_4N]_4[Cu_5Ag_3(i-mnt)_6]·H_2O

<正> [Me4N]6[Ag6(i-mnt)6].H2O(1),[Et4N]4[Cu8(i-mnt)6](2) and [Me4N]4-[Cu5Ag3(i-mnt)6].H2O(3)(i-mnt=S2C=C(CN)2) were synthesized. The crystal and molecular structure of the complex 1 was reported by us.The structure of the complex 2 was determined from single crystal X-ray diffraction data. [Et4N]4[Cu8(i-mnt)s] 2, Mr=1870.46, monoclinic, P21/n, a=14.724(6), b = 17.228(3), c=15.59(1)A,β= 100.75(7)°,V=3886.3A3;Z = 2,Dc= 1.598 g/cm3. Complex 3 has been characterized by ICP elemental analyses and IR spectrum.