配合物[Co(PMBP)2(MeOH)(EtOH)]的合成、表征及晶体结构

在醇溶液中合成了标题配合物[Co(PMBP)2(MeOH)(EtOH)](HPMBP=1-phenyl-3-methyl-4-benzoyl-pyrazolone-5),并进行了元素分析、红外光谱、摩尔电导率、X-射线衍射等表征.结果表明此配合物属单斜晶系,空间群为P2(1)/n,晶胞参数为:a=13.802(2),b...     

1-苯基-3-甲基-4-苯甲酰基-5-吡唑啉酮Zn(Ⅱ)配合物的合成及晶体结构

在乙醇溶液中,以1-苯基-3-甲基-4-苯甲酰基-5-吡唑啉酮(HPMBP)为配体,合成了标题配合物[Zn(PMBP)2(EtOH)2],并表征了其晶体结构.结果表明该配合物属单斜晶系,空间群为P2(1)/n,晶胞参数为a=1.487 3(2)nm,b=1.462 6(2)nm,c=1.715 3(3)nm,α=90°...     

PMBP缩1-萘胺合钴(Ⅱ)配合物的合成和晶体结构

Using 4-[(1-naphthylamino)phenylmethylene]-5-methyl-2-phenyl-2H-pyrazol-3(4H) one (L), its Co(Ⅱ) complex was synthesized and characterized by IR and UV in which the ligand as a -1 valence bidentate with Co(Ⅱ) form 2∶1 complex. X-ray structure analysis indicates that the Co(Ⅱ) ion is coordinated with oxygen atoms of pyrazolinon, nitrogen atoms of imine and oxygen atoms of DMF molecules to form a distorted six-coordination octahedron. π-π reciprocity and aromatic stack interaction are observed. There are no intra- and inter- hydrogen bond in the crystal and the complexes are held together by electronic and Van der Waals forces.     

配合物[Ln(CH3COO)2(NO3)(bipy)]2的合成与晶体结构

合成了５种新型镧系四元混合阴离子配合物,用Ｘ射线四圆衍射仪测定了［Ｐｒ（ＣＨ３ＣＯＯ）２（ＮＯ３）（ｂｉｐｙ）］２的晶体结构,四个醋酸根呈两种配位方式,测定了铕和钆配合物的荧光和ＥＳＲ谱．     

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.     

三氯化锑和二氧杂环己烷配合物[SbCl_3·{(CH_2)_4O_2}_(1.5)]的合成与晶体结构(英文)

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铜配合物[Cu(2,2'-bipy)(pydco)(H2O)]·4H2O的合成与晶体结构

配合物[Cu(2,2’-bipy)(pydco)(H2O)].4H2O(2,2’-bipy=2,2’联吡啶,pydco=氮氧化-2,6-二甲酸吡啶)的结构由X-射线测定,配合物属三斜晶系,P墿空间群,晶胞参数:a=0.68120(14),b=1.1850(2),c=1.2554(3)nm,α=86.06(3),β=81.60(3),γ=86.16(3)°,V=0.99854(4)nm3,Z=2。2,2’联吡啶提供两个配位原子(N1,N2),氮氧化-2,6-二甲酸吡啶提供两个配位氧原子以及一个配位水提供一个氧原子参与了配位,中心Cu(II)离子是一个畸变的四角锥结构。有趣的是,配合物的结晶水组成了一条条的水带,配合物分子正是由这些水带中的氢键连接在一起的。     

配合物[Ce(CH2=C(CH3)COO)2(NO3)(Bipy)]的合成及晶体结构

The new complex [Ce(CH₂=C(CH₃)COO)₂(NO₃)(Phen)]₂ was prepared in ethanol-aqueous solution with 8-hydroxyquinoline as the acidity regulator. Its crystal structure was determined by X-ray diffraction analysis. The title complex is triclinic, space group P1, a=1.00832(3)nm, b=1.02858(8)nm, c=1.12350(8)nm, α=113.9250(10)°, β=103.8210(10)°, γ=81.4650(10)°, V=1.03252(14)nm³, Z=1, D_c=1.700g·cm^-3, F(000)=522. The coordination number of Ce³⁺ is nine. CCDC: 211278.     

4-羧基苯氧乙酸铜配合物[Cu(CBOAH)2(H2O)2]的合成与晶体结构

合成了4-羧基苯氧乙酸铜配合物[Cu(CBOAH)2(H2O)2](CBOAH-为4-羧基苯氧乙酸根阴离子), 对其进行了IR、TG和单晶X-射线衍射等表征。晶体C18H18CuO12 属单斜晶系, 空间群C2/c, 晶胞参数a = 12.298(3), b = 7.380(1), c = 21.413(4) ? ?= 94.00(3), V = 1938.8(7) , Mr = 489.88, Z = 4, Dc = 1.678 g/cm3, ?= 1.194 mm-1, F(000) = 1004, 最终R = 0.0279, wR = 0.0535。2个不同配体的氧乙酸上的羧基氧原子和醚氧原子与铜原子配位, 并形成赤道平面, 2个轴向位置分别被2个水分子所占据, Cu(Ⅱ)离子具有八面体配位构型。热分析结果表明在220℃前配合物是稳定的。     

3-羧基苯氧乙酸钴配合物[Co(m-CPOAH)2(H2O)4]的合成与晶体结构

合成了一个新的配合物 [Co(m-CPOAH)2(H2O)4](m-CPOAH- = 3-羧基苯氧乙酸根), 并对其进行了元素分析、红外和单晶X-射线的表征。结果表明:配合物晶体属三斜晶系, 空间群为P, 晶胞参数为a = 4.9701(10), b = 5.8701(12), c = 18.272(4) , a = 97.50(3), b = 94.76(3), g = 98.34(3), V = 520.11(18) 3, Z = 1, Mr = 521.29, Dc = 1.664 g/cm3, m = 0.901 mm-1, F(000) = 269, 最终R = 0.0415, wR = 0.0787。2个不同配体的氧乙酸上的羧基氧原子和4个配位水分子与钴原子配位, Co(Ⅱ)原子为六配位八面体构型, 且由分子间氢键形成了三维超分子氢键网络结构。     

邻香草醛氧钒配合物的合成和晶体结构

钒是人体所必需的微量元素,钒化合物是新一代潜在的抗糖尿病药物。我们合成了邻香草醛氧钒配合物[VO(o-van)2(H2O)],并通过红外光谱,元素分析和X-射线单晶衍射等手段确定了其结构。     

Synthesis,crystal structure,and magnetism of [Mn(hfac)2NIT(Ph-m-OPh)]

A new complex [Mn(hfac)₂NIT(Ph-m-OPh)] has been synthesized and structurally characterized by X-ray diffraction. It crystallizes in the monoclinic space group P2(1)/c. The structure consists of a 1-D chain with Mn(II) bridged by NIT(Ph-m-OPh). The manganese(II) is in a distorted octahedral environment formed by one oxygen from NIT(Ph-m-OPh) and three atoms from hexafluoro acetylacetone (hfac) in the equatorial plane and two oxygens from hfac and the other NIT(Ph-m-OPh) in the axial position. The units of [Mn(hfac)₂NIT(Ph-m-OPh)] are connected as a 1-D chain by Mn(II) and oxygen of N–O in bridging NIT(Ph-m-OPh) along the b-axis. The 2-D layer in the ab plane is formed via hydrogen interactions to connect neighboring chains. The complex exhibits intramolecular antiferromagnetic interactions between Mn(II) and NIT(Ph-m-OPh).     

Synthesis and structure of (CN3H6)2[UO2CrO4(C5H3N(COO)2)]

(CN₃H₆)₂[UO₂CrO₄(C₅H₃N(COO)₂)] crystals (where CN₃H₆ is the guanidinium cation and C₅H₃N(COO)₂ is the pyridine-2,6-dicarboxylate anion) have been synthesized and studied by X-ray diffraction and IR spectroscopy. The compound crystallizes in triclinic system with the unit cell parameters a = 7.4115(3) Å, b = 10.0365(7) Å, c = 12.1822(10) Å, α = 93.992(6)°, β = 97.749(7)°, γ = 96.907(6)°; space group $P\bar 1$ , Z = 2, R = 0.0721. The structure consists of [UO₂CrO₄(C₅H₃N(COO)₂)] ₂ ^4? , centrosymmetric dimers linked with the outer-sphere guanidinium ions by means of electrostatic interactions and hydrogen bonds. [UO₂CrO₄(C₅H₃N(COO)₂)] ₂ ^4? dimers belong to the AT⁰⁰¹B² crystallochemical group (A = UO ₂ ²⁺ , T⁰⁰¹ = C₅H₃N(COO) ₂ ^2? B² = CrO ₄ ^2? ) of uranyl complexes. Using molecular Voronoi-Dirichlet polyhedra, we have established that, in addition to hydrogen bonds, the π-π stacking interaction also produces some effect on the packing of uranyl-containing complexes in the studied structure.     

Synthesis of the stable UO2I2, the last of the uranyl dihalides. X-ray crystal structure of [UO2I2(py)3

Treatment of UO2(OTf)2 with pure Me3SiI led to the quantitative formation of UO2I2 (1). This compound dissolved in pyridine and thf to give the red adducts [UO2I2L3][L = py (2) or thf (3)], which were also obtained from the metathetical reaction of UO2(OTf)2 and KI. The crystal structure of has been determined. The uranyl diiodide complexes - are thermally quite stable, providing that strictly anhydrous conditions are employed.     

单核铜配合物[Cu~(II)(HIPP)(pydc)(H_2O)]的合成和晶体结构

用溶剂热合成方法合成了一个单核铜配合物CuII(HIPP)(pydc)(H2O),采用元素分析法和X射线单晶衍射法对该配合物的组成和结构进行了表征.配合物CuII(HIPP)(pydc)(H2O)属于正交晶系,空间群是Pbca.a=0.663 93(18)nm,b=2.062 2(6)nm,c=2.619 1(7)nm,α=90°,β=90°,γ=90°,V=3.585 9(17)nm3,Z=8,ρc=1.693g·cm-3,F(000)=1 864,GOF=0.882,R1=0.037 4,wR2=0.111 8[I2σ(I)].中心铜原子与配体脱质子2,6-吡啶二甲酸的2个羧基氧原子和1个氮原子、HIPP的1个氮原子和1个氧原子及1个水分子中的氧原子形成六配位的变形八面体.结构分析表明晶体中分子间含有氢键.     

Synthesis, structure, and solution dynamics of UO22+-hydroxy ketone compounds [UO2(ma)2(H2O)] and [UO2(dpp)(Hdpp)2(H2O)]ClO4 [ma = 3-hydroxy-2-methyl-4-pyrone, Hdpp = 3-hydroxy-1,2-dimethyl-4(1H)-pyridone

Reaction of [UO(2)(NO(3))(2)] with the hydroxy ketones 3-hydroxy-2-methyl-4-pyrone (Hma) and 3-hydroxy-1,2-dimethyl-4(1H)-pyridone (Hdpp) in aqueous acidic solutions (pH approximately 3) yields the compounds [UO(2)(ma)(2)(H(2)O)].H(2)O (1.H(2)O) and [UO(2)(dpp)(Hdpp)(2)(H(2)O)]ClO(4) (2), respectively. X-ray diffraction shows that the geometry around the metal ion in both complexes is pentagonal bipyramid. Uranium ion in the crystal structure of 1 were found to be ligated with two chelate ma(-) groups and one unidentate H(2)O molecule (C coordination mode) at the equatorial plane, while in 2 with two single-bonded Hdpp there were one chelate dpp(-) and one H(2)O molecule (P coordination mode). Crystal data (Mo Kalpha; 293(2) K) are as follows: (1) monoclinic space group C2/c, a = 14.561(7) A, b = 14.871(9) A, c = 7.250(4) A, beta = 95.40(4) degrees , Z = 4; (2) monoclinic space group P2(1)/c, a = 19.080(2) A, b = 9.834(1) A, c = 15.156(2) A, beta = 104.62(1) degrees , Z = 4. (1)H NMR measurements indicate that complex 2 retains its structure in CD(3)CN solution; however, in DMSO-d(6) both complexes adopt the C structure. Line-shape analysis for the (1)H NMR peaks of 2 at various temperatures shows a fast intramolecular exchange process between the chelate dpp(-) and one of the single bonded Hdpp ligands and one slower exchange between all three ligands. The activation parameters and the decrease of the exchange rate by replacing unidentate ligand with DMSO indicate the dissociation of the unidentate ligand as the rate-determining step for the former exchange. Density functional calculations (DFT) support this mechanism and give a quantitative interpretation of the electronic structure of the two ligands and the geometries adopted by the complexes.