［La（CCl_3COO）_3（bipy）·H_2O］_2和Tb（CCl_3CO

利用不同溶剂合成并测定了希土三氯醋酸盐与α，α＇－联吡啶（ｂｉｐｙ）不同比例的配合物（Ⅰ）Ｌａ：ｂｉｐｙ＝１：１，［Ｌａ（ＣＣｌ３ＣＯＯ）３（ｂｉｐｙ）·Ｈ２Ｏ］２和（Ⅱ）Ｔｂ：ｂｉｐｙ＝１：２，Ｔｂ（ＣＣｌ３ＣＯＯ）３（ｂｉｐｙ）２·Ｈ２Ｏ，结构测定表明配合物（Ⅰ）与（Ⅱ）均为三斜晶系，中心离子Ｌａ（或Ｔｂ）具有配位数为８的畸变四方反棱柱多面体；但是配合物（Ⅰ）形成具有对称中心的二聚体．     

[La（CCl3COO）3（bipy）.H2O]2和Tb（CCl3COO）3（bipy）2.H2O混配配…

利用不同溶剂合成并测定了希土三氯醋酸盐与α，ａ＇－联吡啶（ｂｉｐｙ）不同比例的配合物（Ｉ）Ｌａ：ｂｉｐｙ＝１：１，［Ｌａ（ＣＣｌ３ＣＯＯ）３（ｂｉｐｙ）．Ｈ２Ｏ］２和（Ⅱ）Ｔｂ：ｂｉｐｙ＝１：２，Ｔｂ（ＣＣｌ３ＣＯＯ）３（ｂｉｐｙ）２．Ｈ２Ｏ，结构测定表明配合物（Ｉ）与（Ⅱ）均为三斜晶系，中心离子Ｌａ（或Ｔｂ）具有配位数为８的畸变四方反棱柱多面体；但是配合物（Ｉ）形成具有对称中心的二聚体。     

三元体系Y(ClO4)3·3H2O—B15C5—CH3OH(25℃)的半微量相平衡研究

采用半微量相平衡方法研究了三元体系Ｙ（ＣｌＯ４）３．３Ｈ２Ｏ－Ｂ１５Ｃ５－ＣＨ３ＯＨ在２５℃的溶解度，测定了各饱和溶液的折光率。该体系在２５℃生成三种化学计量的配合物，其组成分别为：４Ｙ（ＣｌＯ４）３．３Ｂ１５Ｃ５．１２Ｈ２Ｏ．１２Ｃｈ３ＯＨ（Ｉ），Ｙ（ＣｌＯ４）３．２Ｂ１２Ｃ５．３Ｈ２Ｏ．Ｃｈ３ＯＨ（Ⅲ），其中配合物（Ｉ）和（Ⅱ）是溶解不一致化合物。在甲醇溶剂中，分离制备了配合物（Ⅲ），在６９－     

三元体系Y（ClO_4）_3·3H_2O—B15C5—CH_3OH（25℃）的半

采用半微量相平衡方法研究了三元体系Ｙ（ＣｌＯ４）３·３Ｈ２Ｏ－Ｂ１５Ｃ５—ＣＨ３ＯＨ在２５℃的溶解度，测定了各饱和溶液的折光率．该体系在２５℃生成三种化学计量的配合物，其组成分别为：４Ｙ（ＣｌＯ４）３·３Ｂ１５Ｃ５·１２Ｈ２Ｏ·１２ＣＨ３ＯＨ（Ⅰ）、Ｙ（ＣｌＯ４）３·Ｂ１５Ｃ５·３Ｈ２Ｏ·１．５ＣＨ３ＯＨ（Ⅱ）与Ｙ（ＣｌＯ４）３·２Ｂ１５Ｃ５·３Ｈ２Ｏ·ＣＨ３ＯＨ（Ⅲ），其中配合物（Ⅰ）和（Ⅱ）是溶解不一致化合物．在甲醇溶剂中，分离制备了配合物（Ⅲ），在６９—７２℃下干燥得到配合物Ｙ（ＣｌＯ４）３·２Ｂ１５Ｃ５·３Ｈ２Ｏ．利用ＩＲ光谱、电导测量及Ｘ－射线衍射分析对配合物进行了表征．     

1, 2－亚丙基双(草酰胺根)桥联的线性三核铜(Ⅱ)配合物的合成与磁性

本文合成和表征了四种新的三核铜（Ⅱ）配合物）Ｃｕ（Ｌ）２，Ｃｕ（ＣＨ３－ｅｂｏ）（ｃｌＯ４）２（ＣＨ３ｅｂｏ表示１，２－亚丙基双（草酰胺根），Ｌ表示１，１０－菲咯啉（ｐｈｅｎ）（１），５－ｄｉｅｇａｄ －１，１０－ａｄｊｄｋｔｋ ｋｓｓｙ（ＮＯ２－ｐｈｅｎ）（２），２，２＇－联吡（ｂｐｙ（３）和４，４－二甲基－２，２－联吡啶（ｍｅ２ｂｐｙ）（４）．测定了四种配合物的变温磁化率＊７７－３００Ｋ），求     

Gd（ClO_4）_3·3H_2O－18C6－CH_3CN三元体系25℃相平衡研究及配合物的合成与表征

采用半微量相平衡方法研究了Ｇｄ（ＣｌＯ_４）_３·３Ｈ_２Ｏ－１８Ｃ６－ＣＨ_３ＣＮ三元体系在２５℃时的溶解度，测定了饱和溶液的折光率。结果表明，该体系在２５℃时形成两种化学计量的配合物，其组成分别为：Ｇｄ（ＣｌＯ_４）_３·１８Ｃ６·３Ｈ_２Ｏ·２ＣＨ_３ＣＮ和Ｇｄ（ＣｌＯ_４）_３·２（１８Ｃ６）·３Ｈ_２Ｏ·２ＣＨ_３ＣＮ，制备了固态配合物，用化学分析及元素分析、ＩＲ、ＤＴＧ、ＴＧ及ＤＳＣ等研究了配合物的组成与性质。     

Y（ClO_4）_3·3H_2O－B15C5－CH_3CN三元体系在20℃时的半

采用半微量相平衡方法研究了Ｙ（ＣｌＯ_４）_３·３Ｈ_２Ｏ－Ｂｌ５Ｃ５－ＣＨ_３ＣＮ三元体系在２０℃时的溶解度，测定了各饱和溶液的折光率．该体系于２０℃生成两种化学计量的配合物，其组成分别为Ｙ（ＣｌＯ_４）_３·Ｂ１５Ｃ５·３Ｈ_２Ｏ·２．５ＣＨ_３ＣＮ和Ｙ（ＣｌＯ_４）_３·２Ｂ１５Ｃ５·３Ｈ_２Ｏ·ＣＨ_３ＣＮ。用ＩＲ光谱、电导、ＤＴＧ、ＴＧ和ＤＳＣ研究了配合物的组成和性质。     

RE（NO_3）_3·（GLy）_3·nH_2O配合物的合成和表征

本文在水溶液中合成了镧、镨、钐和钆四种稀土硝酸盐与甘氨酸的固态配合物。化学分析表明，它们的化学组成分别是Ｌａ（ＮＯ＿３）＿３·（ＧＬｙ）＿３·Ｈ＿２Ｏ、Ｐｒ（ＮＯ＿３）＿３·（ＧＬｙ）＿３·Ｈ＿２Ｏ、Ｓｍ（ＮＯ＿３）＿３·（ＣＬｙ）＿３·３Ｈ＿２Ｏ和Ｇｄ（ＮＯ＿３）·（ＧＬｙ）＿３·３Ｈ＿２Ｏ。用红外光谱法和Ｘ射线衍射法测定了配合物的结构特征，表明它们是一类完全不同于稀土硝酸盐和甘氨酸的新化合物。同时，考察了配合物在几种常见溶剂中的溶解性。     

Y（ClO4）3·3H2O—B15C5—CH3CN三元体系在20℃时的半微量相平…

采用半微量相平衡方法研究了Ｙ（ＣｌＯ４）３·３Ｈ２Ｏ－Ｂ１５Ｃ５－ＣＨ３ＣＮ三元体系在２０℃时的溶解度，测定了各饱和溶液的折光率。该体系于２０℃生成两种化学计量的配合物，其组成分别为Ｙ（ＣｌＯ４）３·Ｂ１５Ｃ５·３Ｈ２Ｏ·２．５ＣＨ３ＣＮ和Ｙ（ＣｌＯ４）３·２Ｂ１５Ｃ５·３Ｈ２Ｏ·ＣＨ３ＣＮ。用ＩＲ光谱、电导、ＤＴＧ、ＴＧ和ＤＳＣ研究了配合物的组成和性质。     

Yb(Cl_4)_3·3H_2O-18C6-C_2H_5OH体系(25℃)的相化学研究及固态配合物的合成与性质

王冠醚能选择性配位于阳离子,使无机盐溶于有机溶剂及类似酶功能的特性,因而引起人们很大的研究兴趣。文献［１］报道在乙腈中制得了组成为：Ｃｅ（ＣＩＯ４）３·１８Ｃ６的配合物;文献［２］在乙腈中制得了组成为 ＲＥ（ＣＩＯ４） ３· １８Ｃ６（ＲＥ＝ Ｐｒ, Ｅｕｆ）的配合物;而 ＲＥ（ＣＩＯ４） ３·３Ｈ２Ｏ－１８Ｃ６－ＣＨ３ＣＮ体系（ＲＥ＝ Ｄｙ, Ｙ）的相化学研究指出：体系中均形成两种化学计量的配合物［３·４］。Ｙｂ（ＣＩＯ４）３·３Ｈ２Ｏ与１８Ｃ６在乙醇中的配合行为未见报道。为了寻找制备配合物的热力学依…     

Novel acetate binding modes in [Na2Cu(CH3COO)4(H2O)].H2O

A new copper(II) acetate, [Na(2)Cu(CH(3)COO)(4)(H(2)O)].H(2)O (1), has been crystallized from an aqueous solution containing sodium acetate and copper(II) acetate monohydrate in a 4:1 ratio and the structure determined by X-ray crystallography. 1 crystallizes in the monoclinic space group P2(1)/c, with a = 16.638(3) A, b = 11.781(2) A, c = 15.668(3) A, beta = 90.11(3) degrees, V = 3071.0(11) A(3), and Z = 4. In the asymmetric unit, sodium ions bridge two crystallographically unique square planar [Cu(CH(3)COO)(4)](2-) units to their symmetry-generated neighbors to form corrugated 2D sheets of Na(2)Cu(CH(3)COO)(4), which are held together by H-bonding interactions involving the waters of crystallization. In contrast, the structures of known sodium copper acetates are better described as 3D frameworks. The metal centers are bridged by a number of acetates in novel coordination modes. The square planar Cu(II) geometry generated by oxygen atoms from four different acetates is an unexpected feature given the weak ligand field provided by the acetate ligands.     

Synthesis and crystal structure of two new discrete, neutral complexes of manganese and zinc using a rigid organic clip

Two discrete neutral dimanganese(II) and tetrazinc(II) complexes were synthesized from a rigid organic clip and the corresponding metal acetates. The compounds were characterized by elemental analysis and single crystal X-ray diffraction study. The manganese species is a dinuclear discrete product with two disordered acetates bridging two manganese centers, while the zinc one consists of two octahedral and two tetrahedral Zn(II) centers with both bridging acetates and triply micro(3)-hydroxides. Variable temperature magnetic measurement reveals the existence of weak antiferromagnetic interaction (J = -1.6 cm(-)(1); H = -2JS(1).S(2)) within the manganese complex.     

Biosynthetic study of amphidinolide B

The biosynthetic origins of amphidinoide B (1) were investigated on the basis of 13C-NMR data of 13C-enriched samples obtained by feeding experiments with [1-(13)C], [2-(13)C], and [1,2-(13)C2] sodium acetates in cultures of a dinoflagellate Amphidinium sp. These incorporation patterns suggested that 1 was generated from three successive polyketide chains, an isolated C1 unit from C-2 of acetates, six branched C1 units from C-2 of acetates, and an "m-m" and an "m-m-m" unit derived only from C-2 of acetates. The labeling patterns of amphidinolide B (1) were different from those of amphidinolide H (2), a 26-membered macrolide closely related to 1.     

Syntheses and characterization of oxo-centered triruthenium compounds with orthometalated bipyridine

Reaction of oxo-centered triruthenium precursor compound [Ru3O(OAc)6(py)2(CH3OH)](PF6) (1) with 1.3 equiv of bipyridine ligand at ambient temperature gave oxo-centered triruthenium derivatives [Ru3O(OAc)5{micro-eta1(C),eta2(N,N)bipyridine}(py)2](PF6) (bipyridine = 4,4'-dibutyl-2,2'-bipyridine (dbbpy) (2),4,4'-dimethyl-2,2'-bipyridine (dmbpy) (3), 2,2'-bipyridine (bpy) (4), 5,5'-dibromo-2,2'-bipyridine (Br2bpy) (5), 1,10-phenanthroline (phen) (6)). Formation of compounds 2-6 involved substitution of the axial methanol and one of bridging acetates in the precursor compound 1 by an orthometalated bipyridine. Reduction of 2 and 4 by addition of excess hydrazine gave one-electron-reduced neutral products Ru3O(OAc)5(py)2{micro-eta1 (C),eta2(N,N)-bipyridine} (bipyridine = dbbpy (2a), bpy (4a)). As established in the structure of 3 by X-ray crystallography, the orthometalated 2,2'-bipyridine adopts a micro-eta1(C),eta2(N,N) bonding mode. In the 1H NMR spectra of 2-6, the protons of acetate, pyridine, and bipyridine show obvious paramagnetic shifts. Tentative assignments of these proton signals were carried out. Absorption spectra of the bipyridine triruthenium derivatives show characteristic intracluster charge transfer (IC) transitions in the visible to near-infrared region (600-1000 nm) and cluster-to-ligand charge transfer (CLCT) transitions at 320-450 nm. By comparison of the redox data for 2-6, it is concluded that introducing electron-donating substituents to the bipyridine favors stabilizing the [RuIII3]+ and [RuIII2RuII]0 states against disproportionation.     

Synthesis and spectroscopic studies of mixed-ligand and polymeric dinuclear transition metal complexes with bis-acylhydrazone tetradentate ligands and 1,10-phenanthroline

Two types of dinuclear copper(II) and nickel(II) complexes with two tetradentate N2O2 donor ligands 1,4-bis(1-anthranoylhydrazonoethyl)benzene (L1), 1,4-bis(1-salicyloylhydrazonoethyl)benzene (L2) and N,N'-bidentate heterocyclic base [1,10-phenonthroline (phen)] have been synthesized and characterized by elemental analysis, infrared spectra, UV-vis electronic absorption spectra and magnetic susceptibility measurements. The reaction of metal(II) acetates with the solution containing ligand and 1,10-phenonthroline in methanol gives mixed-ligand dinuclear metal(II) complexes with general formula [M2L(phen)2]Cl2 (L=L1 or L2), whereas, the ligands react with metal(II) acetates to form polymeric dinuclear complexes with general formula [(M2L2)n] (L=L1 or L2). In the complexes, the ligands act as dianionic tetradentate and coordination takes place in the enol tautomeric form with the enolic oxygen and azomethine nitrogen atoms while the phenolic hydroxyl and amino groups of aroylhydrazone moiety do not participate in coordination. The effect of varying pH and solvent on the absorption behavior of both ligands and complexes has been investigated.     

Fe3(CO)12与P(NEt2)2Cl的反应--两核和三核铁羰基簇合衍生物的合成和晶体结构

Fe_3(CO)_(12)与配位基前体P(NEt_2)_2Cl反应,给出4个新的两核和三核铁羰基簇合衍生物:Fe_2(CO)_6(μ-Cl)[μ-P(NEt_2)_2](Ⅰ),Fe_2(CO)_6[μ-P(NEt_2)_2]_2(Ⅱ),Fe_3(CO)_9(μ-CO)(μ_3-PNEt_2)(Ⅲ)和Fe_3(CO)_9(μ_3-PNEt_2)[P(NEt_2)_3](Ⅳ)。在反应期间,配前体分子中的P-Cl和P-N键劈开,形成的分子片Cl、PNEt_2、P(NEt_2)_2和P(NEt_2)_3作为配体与铁羰合物重新组建成上述簇合物。利用X射线衍射法测定了它们的晶体结构。Ⅰ属三斜晶系,P1空间群,晶胞参数a=0.8745(6)nm,b=0.9601(7)nm,c=1.3996(10)nm,α=74.131(11)°,β=79.480(12)°,γ=69.727(12)°,V=1.0553(13)nm~3,D_c=1.543g·cm~(-3),Z=2,R=0.0443,wR=0.0831。Ⅱ属正交晶系,Pbcn空间群,晶胞参数a=1.0153(3)nm,b=1.7543(5)nm,c=1.6860(5)nm,V=3.0031(15)nm~3,D_c=1.394g·cm~(-3),Z=4,R=0.0519,wR=0.1035。Ⅲ属单斜晶系,P2_1/c空间群,晶胞参数a=1.0280(5)nm,b=1.2113(5)nm,c=1.9192(7)nm,β=93.560(7)°,V=2.1366(16)nm~3,D_c=1.712g·cm~(-3),Z=4。Ⅳ属单斜晶系,Cc空间群,晶胞参数a=1.5875(7)nm,b=1.0359(5)nm,C=2.1919(9)nm,β=101.266(8)°,V=3.535(3)nm~3,Dc=1.443g·cm~(-3),Z=4。Ⅰ和Ⅱ为两核铁簇,其簇骨架Fe_2PCl和Fe_2P_2呈蝶状。Ⅲ和Ⅳ     

二茂铁基取代酰腙的一些过渡金属配合物

本文制备了两个金属有机配位体,肉桂醛二茂铁基甲酰腙(HL^1)和二[(1-肉桂酰肼基乙基)环戊二烯基]铁(H~2L^2)及它们与一些过渡金属的配合物:ML~2^1[M=Cu(II)],ML^2[(M=Cu(II)和Zn(II)],M(HL^1)~2Cl~2[M=Cd(II),Co(II)和Ni(II)],M(H~2L^2)Cl~2[M=Mn(II),Zn(II),Co(II)和Cd(II)]。这两个配位体以烯醇式与M(OAc)~2.nH~2O中心离子配位,与MCl~2.nH~2O则以酮式配位。     

Regioselective addition of aromatic amines at the exocyclic C=C bond of 2-(2-Oxo-2,3-dihydro-1H-indol-3-ylidene)acetic acid esters

Methyl and ethyl 2-(2-oxo-2,3-dihydro-3H-indol-3-ylidene)acetates react with aromatic amines to give products of regioselective addition at the α-position of the activated exocyclic C=C bond, methyl and ethyl 2-arylamino-2-(2-oxo-2,3-dihydro-1H-indol-3-yl)acetates.     

Crystal Structure of Quaternary Mixed Anion Complex of Labthanide [Ce(CH_3COO)_2(NO)_3(phen)]_2

11NTRODUrmNSomequaternarymixedanioncomplesesoflanthanidesweresynthesized.karasavetalsynthesized">Eu(acac)(NO3)(bipy)2.3H2OandJin[2ietal.Synthe-sizedEu(m-MBA)(NO3)(phen)andEu(o-MBA)(NO,)(phen).Onlyacrystalstructureofceriumcontainingphenwasstudied,Ce(CH,COCHCOCH,)3(phen),fromCambridgeStructureDatabase.SowesynthesizedthecomplexoftCe(CH,Coo)z(Noa)(phen)J,andthecrystalstructure.2EXPERmENTAL2.1Cry8talpreparationThecrystalwasseparatedfromtheethanol/waterso-lutionofceriumnitrate…     

Crystal Structures and Characterizations of Bis(1-benzoyl-methyl-benzotriazole-N~3)dichoro Metal(II) Complex:[MCl_2-(C_6H_4N_3CH_2COPh)_2][M=Zn(II),Co(II)]

Introduction Recently, the compounds containing 1H-1,2,4-tria-zole group have attracted much interest because of their exhibiting some fungicidal activity and plant growth regulating activity,1 and showing antibacterial activity against Puccinia recondite and roots growth regulation for cucumber.2 Triazole nuclei appear frequently in the structures of various natural products and biologically active compounds, notably thiamine (vitamin B), peni-cillins, antibiotics such as micrococcin,3 and m…