钯（Ⅱ）对钒（V）—锰（Ⅱ）—Tween—20—二安替比林—（间—羟基）—苯基甲？…

在酸性介质中钯（Ⅱ）对Ｖ（Ｖ）－Ｍｎ（Ⅱ）－Ｔｗｅｅｎ－２０－ＤＡｍＨＭ体系显色反应有阻抑作用，基于此建立了一种测定钯的动力学分析方法，并研究了该阻抑反应的动力学参数。方法的线性范围为２０～２４０μｇＰｄ（Ⅱ）／Ｌ检测限为８．４×１０＾－９ｇＰｄ（Ⅱ）／ｍＬ。该体系灵敏度高，稳定性好，用于石钯渣和钯催化剂中钯（Ⅱ）的测定，结果满意。     

Synthesis and Crystal Structure of Tetrakis（4—methylpyridine）bis（μ4—pentathio）—tetracopper（Ⅰ）（4—methylpyridine）solvate

1 INTRODUCTION An interesting aspect in the studies of copper-sulfur coordination chemistry is the apparent tendency of Cu(Ⅰ) ions to form various clusters with sulfur ligands. The coordination chemistry of Cu(Ⅰ) has been studied extensively owing to the importance of Cu(Ⅰ) in biological systems and copper-sulfur bonds detected in some metallopro- teins[1]. More recently, remarkably rich photoluminescence properties have been found in the tetranuclear complexes[2～5] and the cage-ty…     

反式—2—（4—（2—（4—取代苯基）乙烯基）苯基）—5—（4—联苯基）恶唑的合成,？…

通过４－ＲＣ６ＨＣＨＯ与２－（４－甲基苯基）－５－（４－联苯基）恶唑（Ｒ＝Ｈ，Ｍｅ，Ｅｔ，ｉ－Ｐｒ，ｉ－Ｂｕ，Ｐｈ，ＯＭｅ，Ｆ，Ｃｌ，Ｂｒ）在碱催化下的缩合反应合成了１０个新的反式－２－（２－（４－取代苯基）乙烯基）苯基）－５－（４－联苯基）恶唑类化合物，经元素分析，ＩＲ，ＵＶ及ＭＳ确定了它们的结构，并测定了荧光发射光谱，荧光量子产率和激光转换效率。     

Synthesis and Crystal structure of cis—Dichloro—（tetrakis（methylthio）—ethylene）Palladium（Ⅱ）

1 INTRODUCTION Recently much more attention has been paid to palladium bidentate chelate. Such as palladium diphosphino complexes can be used to catalyze crossing-coupling[1] and monocoupling[2]; palladium diamine complexes can be used to catalyze norbornene polymerization[3] and it can also bind to biologically important molecules[4]. Owing to the above reasons, palladium(Ⅱ) complexes with these ligainds are well researched. However, the neutral analogs with derivatives of dithiole are…     

A Triple Cluster Platinaborane：[（P（2）Ph3）Pt（1）（μ2—B（11）—B（9）—OC（CH3）3—B10H10））Pt（7）（P（1）Ph3）]2

Ｉｎｒｅｃｅｎｔｙｅａｒｓｓｙｎｔｈｅｓｉｓａｎｄｃｈａｒａｃｔｅｒｉｚａｔｉｏｎｏｆｎｅｗｍｅｔａｌｌａｂｏｒａｎｅｓａｎｄｍｅｔａｌｌａｃａｒｂｏｒａｎｅｓｈａｖｅａｔｔｒａｃｔｅｄｍｕｃｈｉｎｔｅｒｅｓｔ .1 3Ａｗｉｄｅｖａｒｉｅｔｙｏｆｃｌｕｓｔｅｒｃｏｍｐｌｅｘｅｓ ,ｉｎｗｈｉｃｈｃｏｏｒｄｉｎａｔｉｏｎｃａｎｂｅｖｉａＢ—Ｈ—Ｍｏｒ (ａｎｄ)Ｂｎ—Ｍｂｏｎｄ(ｎ =1,2 ,3,4 ,5 ,6 ) ,ｈａｖｅｂｅｅｎｓｙｎｔｈｅｓｉｚｅｄａｎｄｓｔｒｕｃｔｕｒａｌｌｙｃｈａｒａｃｔｅｒｉｚｅｄ .Ｔｈｅｐｏ…     

A Practical Synthesis of （S）—（＋）—2—（6′—methoxyl—2—naphthyl） propionic Acid

A simplified procedure for enantioselective synthesis of (S)-( )-2-(6′-methoxyl-2-naphthyl)propionic acid ((S)-( )-naproxen), starting from (6-methoxy-α-naphthyl)-1-propanone,with D-mannitol as auxiliary catalyzed by SmCl3 in one-pot is described. The yield is 87.5%(ee value 99%).     

Crystal Structure of Complex Tris（4,4,4—trifluoro—1—pheny1—1,3—butanedione）（1,10—phenanthroline）Europium（Ⅲ）

The complex Eu(btfa)₃ (phen) (btfa=4,4,4‐trifluoro‐1‐phenyl‐1, 3‐butanedione, phen = 1,10‐phenanthroline) has been prepared and characterized by elemental analysis, IR and UV spectroscopies. The crystal and molecular structures of the complex have been determined by X‐ray diffraction analysis. It belongs to the monoclinic crystal system, space group P2₁/c with a = 0.9700(2) nm, b = 3.7450(5) nm, c = 1.0917(3) nm, β = 92.51(2)°, V = 3.962(1) nm⁵, Z = 4, D_c = 1.639 g/cm³, μ = 1.676 mm^?1, F(000) = 1936, R₁, = 0.0388, wR₂ = 0.0775. Structure analysis shows that the europium(III) ion is coordinated to six oxygen atoms of β‐diketonate anions and two nitrogen atoms of phenanthroline molecule. The coordination polyhedron is an approximate square antiprism.     

（±）—表—马氏醇的合成（Ⅱ）

报道了（±）－表－马氏醇的另一种合成方法，应用羟基香叶醛及芳樟醇为原料，通过关键中间体（２Ｅ，６Ｅ，１０Ｅ，１４Ｅ）－１６－羟基－３，７，１１，１５－四甲基－９－９苯磺酰基－２，６，１０，１４－十六碳四烯醛及溴化物，在无水ＣｒＣｌ２作用下，分子内缩合生成苏式醇为主的环化产物。     

Synthesis and Crystal Structure of Bis（nitrate）bis（N—n—octyl—α—pyrrolidone）uranyl（Ⅱ）

The crystal structure of the title compound UO2(NO3)2[CH2(CH2)2CONC8H17] was determined by single-crystal X-ray diffraction. Crystal data: triclinic, space group P ī, a = 7.456(2), b = 8.371(2), c = 13.470(3)A, α = 95.66(1), β = 94.64(2), γ = 102.67(2)°, C24H46N4O10U, Mr = 788.68, V = 811.73A3, Dc = 1.613 g/cm3, Z = 1, F(000) = 390, μ = 5.052 mm-1, the final R = 0.0256 and wR = 0.0568 for 2826 observed reflections I>2σ(I). The central uranyl ions are coordinated by six oxygen atoms. Two of them are from the carbonyl groups of N-octyl--pyrrolidone molecules, and the other four from two nitrate groups.     

Crystal and Molecular Structure of （μ—FcCO）（μ—t—BuS）Fe2（CO）6

ＣｒｙｓｔａｌａｎｄＭｏｌｅｃｕｌａｒＳｔｒｕｃｔｕｒｅｏｆ（μ－ＦｃＣＯ）（μ－ｔ－ＢｕＳ）Ｆｅ_２（ＣＯ）_６ＬｉｕＪｉｎ－Ｔｉｎｇ（ＣｏｌｌｅｇｅｏｆＣｈｅｍｉｓｔｒｙ，ＳｈａｎｄｏｎｇＵｎｉｖｅｒｓｉｔｙ，Ｊｉｎａｎ，２５０１００）Ｒｅｃｅｉｖ...     

STRUCTURE OF DIAQUO（N—p—METHYLPHENYL）IMINODIAC—ETATO COPPER（Ⅱ）

<正> Diaquo (N - p-methylphenyl) iminodiacetato Copper (Ⅱ) Cu-CH3C6H4N(CH2COO)2](H2O)2, Mr = 320. 79, orthorhombic,Pcab (No. 62 non-stamdard setting, symmetry code: x,y,z; 1/2 + x ,y , 1/2 + z; x; , 1/2 -y , 1/2 -z; y,z),a = 7. 612(2), b = 12.938(1), c=26.574(3)(?) , V = 2616. 9(2) A3, Z = 8, Dc=1. 628 Mg.m-3, Do = 1.63 Mg.m-3, μ(CuKα) = 2. 62mm-1, F(000) = 1320, T =298K, final R = 0. 049 for 1136 observed reflections. In the molecule, the Cu (1) atom is bonded to two carboxyl oxygen atoms O(1), O(2), and two oxygen atoms O(10), O(20) from two water molecules and an imino N(1) atom to form a distorted square pyramid, in which the O(20) atom occupies an axial position and bond length of Cu(1)- O(20) 2.315(?) shows Jahn-Teller effect.     

（2E,4E）—3—苯基—2—（2—（N—乙氧羰基甲基氨基）—苯硫基）—2,4—己二烯酸乙酯

２，３－二氢－２－甲基－４－苯基－１，５－苯并硫氮杂卓与重氮乙酸乙酯反应，得到非预斯的分子内重排的开环产物，通过元素分析，ＩＲ，＾１ＨＮＭＲＭＳ及Ｘ－晶体的衍射分析确定了它的结构，并根据产物的结构，对这一新反应的反应机理进行了探讨和研究。