Syntheses and Characterization of Half—Sandwich Zirconium Complexes with Dichalcogenolate o—Carborane Ligands

Metallocene complex Cp2^ttZrCl2(Cp^tt=η^5-1,3-^tBu2C5H3)(1)has been prepared from the reaction of LiCp^tt with ZrCl4 in good yield.Reactions of 1 with dilithium dichalcogenolate o-carboranes afforded new type of half-sandwich compounds with dichalcogenolate o-carboranyl ligands,[Li(THF)4][Cp^ttZr(E2C2B10H10)2](E=S,2a;E=Se,2b)in which only one cyclopentadienyl ring ligand existed.Complexes 1 and 2a were structurally characterized by X-ray analyses.In complex 2a,the Zr(IV)ion is η^5-bound to one 1,3-ditert-cyclopentadienyl ring and σ-bound to four μ2-sulfur atoms of two dithio-carboranes.the zirconium atom and four sulfur atoms form a distorted pyramid.The coordination sphere around the zirconium atom resembles in a piano stool structure with four legs of sulfur stoms and the fulcrum at the zirconium stom.     

Synthesis,Structure and Reactivity of Lanthanocene Complexes

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混合配体席夫碱稀土茂配合物催化合成聚甲基丙烯酸甲酯

The synthesis of high molecular mass (Mr＞5×105) polymers with a narrow molecular mass distribution (Mr,max/Mr,min＜1.05) is a challenging theme in modem polymer chemistry.     

新型苯并咪唑类配体配合物的合成及其性能

以苯并咪唑（HL¹）和3,6 二氯哒嗪在钠催化下反应制得配体3-氯-6-(苯并咪唑-1-基)哒嗪(L²）;采用溶液法和水热法,L¹分别与含有银、铜过渡金属盐反应合成了3种新的有机金属苯并咪唑配合物［AgL¹］_n(1),［Cu₄(HL¹)₄(O)(Cl)₆］(2)和{［Cu(HL¹)₂］·SiF₆}(3);采用溶液法,L²与Zn(NO₃)₂·6H₂O经配位反应合成了配合物{［Zn(L²)₃(NO₃)］NO₃}(4),其结构经IR,元素分析和X-射线单晶衍射表征。结果表明：1通过苯并咪唑桥连形成一维链状结构,2由苯并咪唑和氯离子桥接形成四核结构,3和4均显示一个单核结构,3的金属中心原子采用二配位构型,4的金属中心原子采用四配位构型。此外,研究了配体HL¹与1,及配体L²与4的荧光性能。结果表明：与HL¹相比,1的最大发射波长发生了红移;而4相对于配体L²其最大发射峰发生明显蓝移。     

新型含氮配体多核铜配合物的合成、晶体结构及其性能研究

以1,10-邻菲罗啉(phen)为配体,采用溶剂蒸发法在水中分别合成了羟基桥连和氯离子桥连的两个新型的含氮配体多核铜离子配合物[Cu4(phen)4(H2O)2(OH)4·(NO3)4·2H2O(1)和Cu2(phen)2Cl4(2)],其结构经元素分析和X-射线单晶衍射表征。1属三斜晶系,空间群P-1,晶胞参数a=10.143 0(9),b=11.900 1(11),c=12.629 9(13),α=111.060(2)°,β=91.070 0(10)°,γ=110.920(2)°,Z=1,V=1 309.8(2)3,F(000)=692。2属单斜晶系,空间群Cc,晶胞参数a=9.860 9(8),b=17.852 9(13),c=13.412 3(15),β=106.583(11)°,Z=4,V=2 263.0(4)3,F(000)=1 256。用荧光光谱和热分析分别研究了1和2的荧光性质和热稳定性,结果表明:在310 nm激发波长激发下,与phen相比,1和2的荧光发射峰分别发生红移和蓝移,λem分别位于451 nm和374 nm。1和2的初始分解温度分别为298℃和300℃。     

含二茂铁基Schiff碱及其过渡金属配合物的合成与表征

合成了两个新型含有二茂铁基的schiff碱配体及其8种过渡金属配合物,并通过^1HNMR,IR,元素分析,热分析和摩尔电导对其结构进行表征,提出了配合物的可能结构。     

3-三氯锡基丙酸酯及其配合物的合成与结构表征

合成了4个新的3-三氯锡基丙酸酯Cl3SnCH2CH2COOR(R=环戊基，1；环己基，2 ；环戊甲基，3；环己甲基，4)，并通过其与二丁基亚砜(L^1)、2，2’-联吡啶 (L^2)、1，10-菲咯啉(L^3)的低热固相反应合成了6个相应的配合物 Cl3SnCH2CH2COOR·L(L=L^1,a;L^2,b;L^3,c).利用元素分析、红外光谱、核磁共振 对其结构进行了表征，并通过X射线单晶衍射测定了1和2的晶体结构，二者均为具 有分子内羰基氧原子配位的畸变三角双锥结构．1属于单斜品系，空间群P21/c, a=0.9842(2)nm,b=1.0923(8)nm,c=1.23948(11)nm,β=93.894(15)°,V=1.3294(4) nm^3,Mr=366.23,Z=4.2属于单斜晶系，空间群P21/c,a=1.04443(9)nm,b=1.04823 (7)nm,c=1.28113(9)nm,β=90.953(8)°,V=1.40239(19)nm^3,Mr=380.25,Z=4.     

含苯氧基或羧基有机铟化合物的合成及表征

三乙基铟分别与不同摩尔比的苯酚和氯乙酸(mol苯酯 : mol氯乙酸=1:1,1 : 2或1:3)在苯中于70℃反应,合成了6个未见报道的有机铟配合物,产物经元素分析、IR及MS鉴定其结构为Et2InOPh,EtIn(OPh)2,In(OPh)3,Et2In(OCOCH2C1),EtIn(OCOCH2C1)2,In(OCOCH2C1)3.     

Synthesis and Crystal Structure of Two Coordination Complexes Based on H2dpa and Tmd Ligands

Two new transition metal compounds, [Mn(dpa)2(tmd)2]n (1, H2dpa = 4-hydroxy-phenyl-acetic acid, tmd = 4,4-trimethylenedipyridine) and [Co4(dpa)6(tmd)4(H2O)4]n·nH2O·nCl2 (2), have been synthesized by hydrothermal synthesis. Compound 1 crystallizes in the monoclinic system, space group P21/n with a = 9.828(3), b = 17.493(5), c = 11.616(4), β = 110.146(6)o, V = 1874.9(10)3, C42H42MnN4O6, Mr = 753.74, Z = 2, Dc = 1.335 g/cm3, μ = 0.406 mm–1, F(000) = 790, the final R = 0.1047 and wR = 0.2021 for 2698 observed reflections (I > 2σ(I)). Compound 2 crystallizes in the monoclinic system, space group P21/c with a = 11.7214(13), b = 17.1582(19), c = 24.625(3), β = 103.055(3)o, V = 4824.4(9)3, C100H104Cl2Co4N8O23, Mr = 2094.55, Z = 2, Dc = 1.443 g/cm3, μ = 0.809 mm–1, F(000) = 2180, the final R = 0.0550 and wR = 0.0673 for 4104 observed reflections (I > 2σ(I)). These complexes were characterized by elemental analysis, IR spectroscopy, and X-ray single-crystal diffraction. The structural analyses show that the two compounds are both one-dimensional chain structures. However, compounds 1 and 2 form threedimensional supramolecular structures by hydrogen bonds, respectively.     

Synthesis, Characterization and Crystal Structures of Lanthanide Phenoxyacetate Complexes with 1,10-Phenanthroline

IntroductionTherehasbeenconsiderableinterestinthecoordinationchemistryoflanthanidecomplexeswithcarboxylateligandsduetotheirpotentialapplicationinmolecularassembliesandluminescentprobesinsystemsofbiologicalrelevance .1 4 Ofthenumerouslanthanidecomplexesthathavebeenwidelystudied,5 9mostofthemarefoundtoexhibitavarietyofdimericorinfinitechainstructure.RecentlywehavereportedpolymericLu(POA) 3(phen)compoundinwhichlutetiumionsforminfinitechainalongtheb axisdirectionthroughthecoordinationofbridgingc…     

1，2-环己二羧酸及芳香含氮配体的双核镉、锰配合物的合成和晶体结构

用水热法合成了两种新的配合物[Cd2(e,e-trans-chdc)2(bipy)2(H2O)2].H2O(1)和[Mn2(e,a-cis-chdc)2(phen)2(H2O)2].2H2O(2)(chdc=1,2-环己二羧酸,bipy=2,2′-联吡啶和phen=1,10-邻菲咯啉),用X-射线单晶衍射分析确定了配合物的晶体结构。配合物1和2均为双核分子。配合物1中,2个镉髤离子由2个1,2-环己二羧酸根以e,e-trans配位方式桥联,每个镉髤离子与1个2,2′-联吡啶的2个氮原子、2个1,2-环己二羧酸根的4个氧原子及1个水分子中的氧原子配位,形成了单帽变形三棱柱构型。配合物2中,2个锰髤离子由2个1,2-环己二羧酸根以e,a-cis配位方式桥联,每个锰髤离子与1个1,10-邻菲咯啉的2个氮原子、2个1,2-环己二羧酸根的3个氧原子及1个水分子中的氧原子配位,形成了畸变的八面体构型。配合物1和2分子之间都存在π-π堆积和O-H…O、C-H…O弱作用,进而将双核分子连接成三维超分子网络结构。配合物的荧光均来自于配体的荧光。     

两个单核镍含氮配体配合物的合成、晶体结构及荧光性质

采用回流法在水溶剂中合成了2个含氮配体单核镍配合物[Ni（phen）₂（H₂O）₂]（1,6-nds）·2H₂O（1）和[Ni（phen）₃]（1,6-nds）·10H₂O（2）（1,6-nds=1,6-萘二磺酸根离子,phen=1,10-邻菲罗啉）。配合物1中,镍离子与2个1,10-邻菲罗啉和2个水分子配位,形成[Ni（phen）₂（H₂O）₂]²⁺阳离子。2个没有配位的水分子通过氢键与[Ni（phen）₂（H₂O）₂]²⁺和1,6-萘二磺酸根离子相互连接形成二维层状结构。配合物2中,镍离子与3个1,10-邻菲罗啉配位,形成[Ni（phen）₃]²⁺阳离子。大量的氢键将自由的水分子和1,6-萘二磺酸根离子连接形成三维网状结构。2个配合物中1,6-萘二磺酸根离子均没有与镍离子配位,只是起到平衡电荷的作用。室温下,配合物显示了较大的荧光发射峰,其最大发射峰分别在443和438nm。     

两个单核镍含氮配体配合物的合成、晶体结构及荧光性质(英文)

采用回流法在水溶剂中合成了2个含氮配体单核镍配合物[Ni(phen)2(H2O)2](1,6-nds)·2H2O(1)和[Ni(phen)3](1,6-nds)·10H2O(2)(1,6-nds=1,6-萘二磺酸根离子,phen=1,10-邻菲罗啉)。配合物1中,镍离子与2个1,10-邻菲罗啉和2个水分子配位,形成[Ni(phen)2(H2O)2]2+阳离子。2个没有配位的水分子通过氢键与[Ni(phen)2(H2O)2]2+和1,6-萘二磺酸根离子相互连接形成二维层状结构。配合物2中,镍离子与3个1,10-邻菲罗啉配位,形成[Ni(phen)3]2+阳离子。大量的氢键将自由的水分子和1,6-萘二磺酸根离子连接形成三维网状结构。2个配合物中1,6-萘二磺酸根离子均没有与镍离子配位,只是起到平衡电荷的作用。室温下,配合物显示了较大的荧光发射峰,其最大发射峰分别在443和438 nm。     

Synthesis and Characterization of Chiral Organogallium and Indium Complexes with Salen Ligands

Several new chiral organogallium and indium complexes with chiral Salen(1 and 2) as anxciliary ligands have been synthesized and characterized by elemental analysis,IR,^1H NMR and Mass spectroscopy.For the gallium,Mono and bimetallic complexes were obtained,whereas ring closure complexes of indium were obtained.     

Synthesis and Characterization of 2,6-Bis(imino)phenoxy Cobalt Complexes

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钾的N-酰化牛磺酸配合物的合成、表征及其晶体结构

The title complex(K(C₉H₁₃NO₅S₂)(H2O)) was synthesized by the reaction of p-tolysulfonyl chloride, taurine and potassium hydrate in water-methanol-ethanol solution. The crystal structure was determined by X-ray diffraction method and the chemical formula weight of the complex is 336.44. The crystal structure of the title complex belongs to orthorhombic space group Pbca and cell parameters: a=0.853 31(12) nm, b=0.820 42(12) nm, c=3.989 4(6) nm. V=2.792 8(7) nm³, Z=8, D_c=1.600 g·cm^-3, μ=0.699 mm^-1, F(000)=1 400. The compound is an one-dimension chain complex of infinite length which are connected with hydrogen bond and bridging coordination water. The difference and same of the complexes were discussed. CCDC: 244938.     

Synthesis and Crystal Structure of the Novel Chiral o—Hydroxyphenyloxazoline Metal Complexes

1 INTRODUCTION Optically active oxazolines have been extensi- vely used as valuable chiral ligands for transition metals in asymmetric catalysis[1]. The design and syntheses of new chiral oxazoline ligands have inspired many scientists to work with great efforts during the recent years. Our interest has been focus- ed on the studies of enantioselective transition- metal catalysis of heterocyclic ligands. In the pre- sent work, we choose o-hydroxyphenyloxazoline ligand for it has a rigi…     

二个含水杨酰腙配体的钒配合物的合成与晶体结构研究

2种水杨酰腙配体H2L1(H2L1=邻羟基苯乙酮缩水杨酰腙)和H2L2(H2L2=水杨醛缩水杨酰腙)分别与VO(acac)2反应,合成了2个钒配合物[VOL1(C2H5O)]2(1)和[VOL2(i-C3H7O)](2),利用元素分析、红外光谱、紫外光谱和单晶衍射等手段进行表征。配合物1是由酚氧原子桥联2个金属中心形成的具有晶体学中心对称性的双核钒(V)配合物结构,每个V(V)原子具有扭曲的八面体配位构型。配合物2为单核结构,每个V(V)原子具有扭曲的四角锥配位构型,相邻的配合物分子通过分子间氢键作用形成一维超分子链状结构。采用循环伏安法研究了化合物2的电化学性质。     

萘啶酮的单核和双核银配合物的合成与晶体结构

合成了萘啶酮的单核和双核银配合物Ag₂(L₁)₂(HL₁=5，7-二甲基-1，8-萘啶-2-酮) (1)和[Ag(HL₂)(PPh₃)₂]·2H₂O(H₂L₂=1，8-萘啶-2,7-二酮) (2)。并通过元素分析，红外光谱及X-射线单晶衍射对其进行了结构表征。配合物1的晶体属单斜晶系，P1空间群。中心金属银为三配位T型几何构型，Ag-Ag间距离为0.274 8(2) nm，具有强的Ag…Ag作用。配合物2的晶体属三斜晶系，P2₁/n空间群。银与1个氮原子及2个磷原子形成三配位结构。     

两个由双咪唑基配体构筑的锰、镉配合物的合成及晶体结构(英文)

通过水热法合成了2个金属-有机配位聚合物[Mn(dipha)(1,3-bix)]n·nH2O(1)和[Cd2(NIPH)2(bimb)2.5(H2O)]n·3nH2O(2)(H2dipha=2,2′-联苯二甲酸,1,3-bix=1,3-双(咪唑基-1-甲基)-苯,H2NIPH=5-硝基间苯二甲酸,bimb=1,4-双(咪唑基-1-甲基)-丁烷)。并对其进行了元素分析、红外光谱、热重和X-射线单晶衍射测定。这2个配合物通过氢键和π-π相互作用形成了超分子网状结构。此外还研究了配合物2的荧光性质。