THE SYNTHESIS AND STRUCTURE OF THE IMIDAZOLATE-BRIDGED HETEROTRINUCLEAR COMPLEX (en)_2Ni[(Im)Co-(NH_3)_5]_2(CIO_4)_6·5H_2O

<正> (H2NC2H4NH2)2Ni [(C3H3N2) Co (NH3)5]2 (CIO4)6 · 5H2O,NiCo2Cl6O29N18C10H62, Mr = 1288. 00, monoclinic, C2/c, a = 31. 832(4), b = 9. 691 (1), c=15. 425(4)(?),β=90. 71(2)°, Z = 4, V = 4758. 0(?)3, Dc=1. 798g/cm3, μ (MoKa) = 15. 22cm-1, F(000)=2656. The three metal nuclei, one Ni( Ⅱ ) and two Co( Ⅲ ), bridged by two imidazolyl anions (Im = C3H3N2), form an isosceles triangle. The Ni( Ⅱ ) atom is situated on the two-fold axis and coordinated by six nitrogen atoms to form a distorted octahedron with two nitrogen atoms from two Im in cis-positions. The two Co( Ⅲ ) atoms are related by C2 symmetry and each Co( Ⅲ ) is coordinated by six nitrogen atoms to form an octahedral configuration.     

六亚甲基四胺锑(Ⅲ)、铋(Ⅲ)配合物的固相合成与表征

通过固相反应,合成了新的配合物六亚甲基四胺锑(Ⅲ)、铋(Ⅲ):SbCl3(C6H12N4)2·H2O(1)、BiCl3(C6H12N4)2·H2O(2).经元素分析、X 射线粉末衍射、远红外光谱和差热 热重分析进行表征,确定了配合物的组成和结构.对XRD谱指标化,确定其晶系和晶胞参数.SbCl3(C6H12N4)2·H2O(1):a=1.2490nm,b=1.4583nm,c=1.6870nm,β=91.78°,V=3.0706nm3;BiCl3(C6H12N4)2·H2O(2):a=1.3250nm,b=1.3889nm,c=1.7449nm,β=98.94°,V=3.1725nm3.     

含未桥连叠氮酸根的单核Cu(Ⅱ)及Co(Ⅲ)配合物的合成和晶体结构

合成了含末桥连叠氮酸根的单核配合物 [Cu(phen) 2 ·(N2 ) ]·NO3 ·2H2 O(1)与 [Co(2 ,2′ -bipy) 2 (N3 ) 2 ]·Cl·2H2 O(2 )。两个晶体都属于三斜晶体 ,空间群为p墿浜衔?(1)的晶胞参数 :a =0 80 4 5 (16 )nm ,b =0 8970 (18)nm ,c =1 70 32 (3)nm ;α =90 95 (3)° ,β =99 94 (3)° ,γ =99 82 (3)°。V =1 1916 (4 )nm3 ,Dc =1 5 72g/cm3 ,Z =2 ,F(0 0 0 ) =5 78,R1=0 4 39,ωR2 =0 10 0 3。在此晶体结构中Cu(Ⅱ )是五配位的四方锥构型。配合物 (2 )的晶胞参数 :a =0 80 95 (16 )nm ,b =1 182 3(2 )nm ,c =1 2 30 6 (2 )nm ;α =91 5 1(3)° ,β =91 88(3)° ,γ =10 6 99(3)°。V =1 12 5 0 (4 )nm3 ,Dc =1 5 5 5g/cm3 ,Z =2 ,F(0 0 0 ) =5 4 0 ,R1=0 0 4 91,ωR2 =0 12 5 5。在此晶体结构中Co(Ⅲ )是六配位的变形八面体构型。     

[Co(pyr)_2(sal)_2]·H_2O的合成和晶体结构

在水溶液中合成了标题配合物[Co(pyr)2(sal)2]H2O, 化学式为C24H22N2O5Co,并测定了其晶体结构。晶体属单斜晶系,C2/c空间群。a = 14.654(3),b = 12.247(3),c = 14.060(3) ,β = 116.804(4)°,V = 2252.1(8) 3, Mr = 477.37, Z = 4, Dc = 1.408 g/cm3,μ = 0.800 mm-1,F(000) = 988, Co(Ⅱ)原子是六配位的八面体结构。     

新磺酰脲类化合物的合成、结构及构效关系研究(Ⅵ)1—N-〔2-(4-甲基)嘧啶基〕-2-甲酸甲酯-苄基磺酰脲的晶体及分子结构

合成了标题化合物 C6H4 (CO2 CH3 ) CH2 SO2 NHCONHC4 N2 H2 CH3 (C15H16N4 O5S,Mr=36 4 .38) ,用 X-射线晶体衍射法测定了其晶体结构。它属单斜晶系 ,空间群为P2 1/ c,a=10 .2 2 0 (1) ,b=9.938(1) ,c=17.2 4 6 (2 ) ,β=10 6 .2 6 (2 )°,V=16 81.6(3) 3 ,Z=4 ,Dc=1.4 39Mg/ m3 ,μ=0 .2 2 7mm-1,F (0 0 0 ) =76 0。结构由直接法解出 ,全矩阵最小二乘法修正 ,最终偏离因子 R=0 .0 4 98,w R=0 .132 7(I>2 σ(I) ) ,独立可观测点数为 3448。分子中的嘧啶磺酰脲、苯环及酯基分别形成 3个独立的平面共轭体系。     

溴化二水二(皮考林酰胺)合钴配合物的合成及晶体结构

用皮考林酰胺、六水合硝酸钴和苄基溴反应制得一种新配合物[(C6H6N2O)2Co(H2O)2].B r2,通过红外光谱、元素分析及X射线晶体衍射对化合物进行了表征.结构分析结果表明,配合物属单斜晶系,P2(1)/n空间群,晶胞参数为:a=0.647 61(5)nm,b=1.026 43(9)nm,c=1.264 14(11)nm,β=93.823 0(10),°V=0.838 44(12)nm3,Z=4,Dc=1.977 g/cm3,μ=5.812 mm-1,F(000)=490,R1=0.071 0,wR2=0.251 6.配合物中,Co(Ⅱ)离子为六配位的八面体构型;相邻单元间通过N—H…B r和O—H…B r氢键相互连结而形成三维网状结构.     

Mn(Ⅲ)Schiff碱配合物的合成、结构及性能

合成Schiff碱配体C20H14N2(OH)2(N,N' 双水杨醛缩邻苯二胺)及相应的两个新Mn(Ⅲ)C20H14N2(OH)2 配合物[Mn(C20H14N2O2)(H2O)(CH3OH)]ClO4(1)和[Mn(C20H14N2O2)(C7H5O2)]·CH3CN(2)(C7H5O2 为水杨醛),并测定了它们的晶体结构。结果表明,配合物1属单斜晶系 ,晶胞参数为 :a=1.1748(7)nm,b=1.3985(7)nm,c=1.3538(4)nm,β=92.63°,V=2.222(2)nm3,空间群为P21/n,Z=4;配合物2也属单斜晶系 ,空间群P21/n ,晶胞参数 :a=1.0252(2)nm ,b=2.0146(3)nm,c=1.2494(4)nm,β=111.12(2)°,V=2.407(2)nm3,Z=4。紫外 可见光谱表明,配合物1和2分别在584nm和592nm处有一吸收,属于MnⅢ的d d跃迁光谱。     

Synthesis and Structure of a Novel Cobalt(Ⅱ)Complex with the Tertiary Carbinol Derivative of Di-4-pyridinylmethanone

The title complex [Co[(4-C5H4N)2C(OH)(NHC3H7)]2(NO3)2]∞ was obtained and characterized through elemental analysis, FT-IR and X-ray crystallography. The complex crystallizes in space group P3(2)21 with a=10.2480(11), b=10.2480(11), c=26.943(6), β=120.00°, [Co[(4-C5H4N)2C(OH)(NHC3H7)]2(NO3)2]∞, C28H34CoN8O8 , Mr=669.56, Z=3, V=2450.5(7)3 , Dc=1.361 g·cm-3 , μ=0.584 mm-1 , F(000)=1047, R=0.0498 and wR=0.1301. The Co(Ⅱ) center exhibits a N4O2-octahedral coordination geometry surrounded by a pair of nitrates at the axial positions and four pyridyl N atoms at the equatorial sites. An infinite double-bridged chain structure with μ2-bridging (4-C5H4N)2C(OH)(NHC3H7) ligands is formed, which is the in situ product of metal-promoted nucleophilic addition reaction of propan-1-amine with di-4-pyridinylmethanone ((4-C5H4N)2CO) in the presence of Co(NO3)2·6H2O. It is the first tertiary carbinol metal complex derived from di-4-pyridinylmethanone so far, and also the rare example of tertiary carbinol derivative of dipyridylmethanone family. The nucleophilic reaction at the carbonyl of dipyridylmethanone in the presence of metal salt will be discussed.     

离子液体(1-甲基-3-羧甲基咪唑)钴配合物的合成和晶体结构

由离子液体1-甲基-3-羧甲基咪唑硫酸氢盐([C6H9N2O2][HSO4])和氯化钴合成了一种新的配合物[Co(H2O)4(C6H8N2O2)2]Cl2.2H2O;采用单晶X射线衍射方法测定了配合物的晶体结构.结果表明,所合成的配合物C12H28Cl2CoN4O10属于三斜晶系,空间群P-1,a=0.66753(5)nm,b=0.91751(6)nm,c=1.80604(13)nm,α=85.618(5)°,β=83.385(5)°,γ=83.443(5)°,V=1.08934(13)nm3,Z=2,Mr=520.23,F(000)=538,Dc=1.580g.cm-3,μ(Mo-Kα)=1.088mm-1,R1=0.0861,wR2=0.2878.单晶X射线分析结果表明,在所合成的配合物中,每个1-甲基-3-羧甲基咪唑除羧基外其它原子均位于同一平面,咪唑环带正电荷,而羧基氢原子消失;即整个1-甲基-3-羧甲基咪唑分子不带电荷.总体而言,配合物的内界[Co(H2O)4(C6H8N2O2)2]2+带两个正电荷,外界游离的两个氯离子起平衡电荷作用.     

Synthesis and Crystal Structure of a New Complex {[Co~(Ⅲ)L_2]·[Co~(Ⅱ)(H_2O)_6]_(0.5)·2.25H_2O}_4 (H_2L = N-(2-Hydroxyphenyl)salicylidenimine)

The reaction of Co(OAc)2·4H2O with the Schiff base H2L in a methanol solution affords the red crystals of {[CoIIIL2]·[CoII(H2O)6]0.5·2.25H2O}4 1 (H2L = N-(2-hydroxyphenyl) sali-cylidenimine). The molecular and crystal structures were determined by single-crystal X-ray diffraction. The crystal is of monoclinic, space group P21/n, C104H114Co6N8O37, Mr = 2421.61, a = 10.625(3), b = 16.335(4), c = 15.265(4) , β = 102.990(4)o, V = 2581.6(11) 3, Z = 1, Dc = 1.558 g/cm3, μ = 1.034 mm-1, F(000) = 1252, R = 0.0414 and wR = 0.1167 for 5889 reflections. The Co(III) atom is six-coordinated by two nitrogen atoms and four oxygen atoms of two tridentate L ligands. The abundant hydrogen bonding interactions extend the complex into a one-dimensional supra-molecular framework. The uncoordinated water molecules act as space-fillers and consolidate the whole architecture through the hydrogen bonding interactions.     

[(C6H5 NO2)Pr(H2O)4](CrMo6O24H6)·(C6H5NO2)·2.5H2O的合成与晶体结构

用常规合成方法制备了基于Anderson结构阴离子的二维层状化合物[(C6H5NO2)2Pr(H2O)4](CrMo6O24H6)·2.5H2O,通过红外光谱和X射线单晶衍射对其进行了表征.结果表明,该化合物属于单斜晶系,C2/c空间群.a=2.3442(9)nm,b=1.3291(5)nm,c=2.458(1)nm,β=103.08(1)°,V=7.460(5)nm3,R1=0.0727,wR2=0.1903.结构分析表明,[CrMo6O24H6]3-阴离子通过端氧担载一个配位的Pr3+离子形成中性的(C6H5NO2)Pr(H2O)4(CrMo6O24H6)基团,相邻的中性基团在Ot—Pr—Ot桥联下形成一维链,链与链又通过异烟酸的桥联形成二维层状结构.     

对咪唑基苯甲酸镉(Ⅱ)配合物的合成及结构研究

利用水热法合成了2个新的对咪唑基苯甲酸镉配合物Cd(C10N2O2H7)2·H2O(1)和Cd2(H2O)5(C10N2O2H7)(C9O6H3)·4H2O(2),通过元素分析、红外光谱和X-射线单晶衍射进行了表征.结果表明:化合物1属于正交晶系,Pnna空间群,a=1.389 5(5)nm,b=1.665 4(5)nm,c=0.828 2(5)nm,V=1.916 5(15)nm3,Z=4,R1=0.026 3,wR2=0.0793;化合物2属于单斜晶系,P21/c空间群,晶胞参数a=1.370 2nm,b=1.751 1nm,c=1.255 7(4)nm,β=114.819(6)°,V=2.734 6(14)nm3,Z=4,R1=0.057 3,wR2=0.166 7.     

[Nd(ONO2)6][Cu(Im)(Phen)2]2(OH)·4H2O的合成、晶体结构及磁性质

用Nd(NO3)3·6H2O、Im(C3H4N2)、Phen(C12H8N2)和Cu(NO3)2·3H2O为原料,两步反应合成了标题化合物.该化合物晶体属P1空间群,晶胞参数a=1.012 6(2) nm,b=1.179 2(2)nm,c=1.398 5 nm,α=111.32(3)°,β=93.17(3)°,γ=90.33(3)°,Z=1,R=0.043.测定了化合物的UV-Vis-NIR及IR光谱和变温磁化率,发现标题化合物在低温下具有反铁磁性质.     

[Mn3O(O2CC6H5)6(C3H4N2)3]·C6H5CO2·0.5H2O的 合成、晶体结构及磁性质

Mn(O2CMe)2·4H2O、咪唑、苯甲酸和N(n-Bu)4MnO4在无水乙醇溶剂中反应,制备得到锰的三核μ3-O桥联配位化合物[Mn3O(O2CC6H5)6(C3H4N2)3]·C6H5CO2·0.5H2O.该配位化合物的X射线单晶衍射表明,其属于单斜晶系,空间群P21/C,晶胞参数：a=1.52832(19)nm,b=1.9722(2)nm,c=2.1023(3)nm,β=92.597(3)°,Z=4.变温磁化率(5～280K)研究表明,该配位化合物中3个锰离子在低温下存在弱的反铁磁性耦合,交换积分J=-2.34cm^-1。     

Synthesis and Structural Characterization of Bis(2,2'-bpy)bis(azide)cobalt(III) nitrate dihydrate

The title complex [CoIII(2, 2?-bpy)2(N3)2]@NO3@2H2O was obtained by an auto-oxidization reaction of cobalt nitrate with 2, 2?-bpy and sodium azide in aqueous solution at room temperature, and violet single crystals were prepared in ethanol solution. The structure was determined by X-ray crystallography. The crystal is of triclinic, space group P ī with a = 8.285(4), b = 11.990(8), c = 12.596(7) ?, ( = 86.630(3), ( = 86.280(5), ( = 71.130(10)°, C20H20CoN11O5, Mr = 553.40, Z = 2, V = 1180.6(12) ?3, F(000) = 568, Dc = 1.557 g/cm3, ( = 0.784 mm-1, R = 0.0403 and wR = 0.1008. The title complex consists of a [CoⅢ(2, 2?-bpy)2(N3)2]+ cation, a NO3- anion and two lattice water molecules. The center CoⅢ ion coordinated by two chelating 2, 2?-bpy ligands and two terminal azide groups with a CoN6 coordination environment exhibits a distorted octahedral geometry.     

[Co(Phen)2(H2O)2](HL)NO3·3H2O的合成及晶体结构

在水溶液中,以邻菲咯啉、丁二酸与硝酸钴为原料合成了一个新的超分子化合物[Co(Phen)2(H2O)2].(HL).(NO3).3H2O,并经元素分析、IR、X射线单晶衍射分析进行了结构表征.结构分析表明,晶体属三斜晶系,P1-空间群,a=0.968 0(2)nm,b=1.370(3)nm,c=1.394 9(3)nm,α=61.714(3)°,β=71.495(4)°,γ=79.575(4)°,V=1.543 7 nm3,Z=2,ρ=1.481 g/cm3,C28H31CoN5O12,Mr=688.51,F(000)=714 andμ=0.627 mm-1,7 754个独立衍射点中,5 428个可观察点满足I≥2σ(I),R1=0.074 5,wR2=0.210 7.晶体中[Co(Phen)2(H2O)2]2+通过π-π相互作用堆积成二维层状结构,层间通过氢键作用构成三维超分子.     

CRYSTAL AND MOLECULAR STRUCTURES OF SCHIFF BASE COM-PLEXES WITH TRANSITION METAL IONS Ⅱ . BIS-( N-( 4-CHLQRO-PHENYL)-SALICYLALDIMINATO)COBALT (Ⅱ)

<正> The crystal and molecular structure of the title compound was determined by means of Patterson and Fourier synthesis based on three-dimensional X-ray data. The crystallographic parameters are as follows; (C13H8NOCl)2Co, monoclinic, space group A2/a,a = 11. 722 (8) , b = 8. 726 (5) , c = 21. 810 (8) A ,β= 95. 90 (6)°, V = 2219. OA3,Z= 4, Dc=1.55g/cm3,μ= 10. 71cm-1, F(000) = 1052, R= 0.042, Rw = 0. 051. Two iminato ligands are attached to the center atom Co through their donor atoms N(1),O(1),N(1)* ,and O(1)* to form a distorted tetrahedral configuration. The bond lengths of Co-O and Co-N are 1. 891 and 1. 988 A , respectively.     

STRUCTURE OF N-(p-CHLORO )-PHENYL ZMINODIACETIC ACID

<正> N-(para-chloro)-phenyl iminodiacetic acid hydrate ethanol solvate ClC6H4N(CH2COOH)2· H2O·C2H5OH, Mr = 307.73, monoclinic, P21/n, Cu-Ka (λ=1. 5410(?)), a = 16. 732(1), b = 5. 337(1), c=16. 300(1)(?) ,β=108. 52(1)°, V = 1380. 1(?)3, Z = 4, Dc=1.481g.cm-3, * = 27. 172cm-1, F(000) = 648, final R = 0. 072 for 1610 observed reflections. The crystal structure consists of discrete molecule of N-(para-chloro)-phenyl iminodiacetic acid, hydrate as well as ethanol solvate. A big ring consisting of atoms O(3), C(3), C(4), N(1), C(2), C(1), O(2) and H(2) is nearly planar with the maximum deviation of the atom N(1) of 0. 54 (?). Owing to the intramolecular hydrogen bond O(2)-H(2)…O(3) , the bond C(3) -O(3) in the COOH group is longer than the bond C(3)-O(4).     

Synthesis,Crystal Structure and Photoluminescence of [Gd(C_6NO_2H_5)_3-(H_2O)_2]_(2n)·(nH_5O_2)(nHgCl_5)(2nHgCl_4)·(2nH_2O)

A heterometallic 4f-5d inorganic-organic metal-isonicotinato hybrid Gd(C6NO2H5)3-(H2O)22n·(nH5O2)(nHgCl5)(2nHgCl4)·(2nH2O) 1 has been synthesized via hydrothermal reaction and structurally characterized.Complex 1 crystallizes in the space group C2/c of monoclinic system with four formula units in a cell:a=24.234(8)=b=20.816(7)=c=15.333(3)=β=128.091(8)°=V=6088(3)3=C36H47Cl13Gd2Hg3N6O20=Mr=2260.92=Dc=2.467 g/cm3=S=0.896=μ(MoKα)=10.331 mm-1=F(000)=4216=R=0.0344 and wR=0.0629.The crystal structure analysis reveals that the title complex is characteristic of a one-dimensional chain-like structure.Photoluminescent investigation reveals that the title complex displays a broad and intense emission in the green region.     

含咪唑基配体的Co(Ⅱ)超分子配合物的合成、晶体结构和光谱性质

采用改进的固相Wittig反应, 合成了一种新型的具有电子给受体和π共轭结构的咪唑衍生物1-{反式4-[4-(-N,N-二乙基氨基)苯乙烯基]苯}咪唑(C21H23N3, 简作L). 室温下, 将L与Co(SCN)2在甲醇中反应, 合成了配合物Co(SCN)2(C21H23N3)4. X射线单晶衍射分析结果表明, 该晶体属于三斜晶系, P1空间群, 晶胞参数a=0.931 7(3) nm, b=1.275 3(4) nm, c=1.669 1(5) nm, α= 89.521(5)°, β=84.591(5)°, γ=80.052(5)°, V=1.944 6(11) nm3, Z=1, μ=0.329 mm-1, Dc=1.234 Mg/m3, F(000)=765, R1=0.060 1, wR=0.138 1, GOF=1.030, 中心原子Co(Ⅱ)的配位数为6, 分别与来自4个L的咪唑N及2个SCN-的N配位, 形成八面体的空间构型. 配合物分子通过非典型氢键和π-π堆积作用形成三维超分子结构. 研究结果表明, 配合物具有很好的光学性质.