Synthesis and Crystal Structure of （1,3—^tBu2C5H3）2Sm（μ—Cl）2Li（THF）2

1　ＩＮＴＲＯＤＵＣＴＩＯＮＡｓａｔｙｐｅｏｆｉｍｐｏｒｔａｎｃｅｐｒｅｃｕｒｓｏｒ,ａｌｏｔｏｆｏｒｇａｎｏｌａｎｔｈａｎｉｄｅｃｈｌｏｒｉｄｅｃｏｍｐｌｅｘｅｓｈａｖｅｂｅｅｎｓｙｎｔｈｅｓｉｚｅｄａｎｄｓｔｒｕｃｔｕｒａｌｌｙｃｈａｒａｃｔｅｒｉｚｅｄ[1].Ｔｈｅｂｉｍｅｔａｌｌｉｃｃｏｍｐｌｅｘｅｓｃｏｎｔａｉｎｉｎｇａｌｋａｌｉｍｅｔａｌ,Ｃｐ2Ｌｎ(μＣｌ)2Ｍ(Ｌ)(Ｃｐ=η5Ｃ5Ｈ5ｏｒＣ5Ｍｅ5;Ｍ=Ｌｉ,Ｎａ;Ｌ=ＴＨＦ,ＴＭＥＤＡ),ｉｓａｍａｉｎｓｔｒｕｃｔｕｒｅｔｙｐｅ.Ｉｎｔｈｅｃｏｕｒｓｅｏ…     

盖帽三核钴羰基簇合物（u3—CH3C）Co3（CO）7（u0—PPh2CH2PPh2）和（u3—CH3C）Co3（

本文从结构化学角度，阐述了标题化合物的EI质谱断裂行为，这些化合物的分子离子基本上按分步断裂分别失去羰基，直至获得[CH3CCo3[PPh2CH2PPh2)]^ 和[CH3CCO3]^ ，然后，这些残基和含膦配体继续断裂，失去Ph,PhP,Ph3P,C7H7,C6H6,C2H2,H2和Co等，生成各种相应的三核，二核和单核钴的碎片离子。     

Syntheses and Anti—inflammatory Actiobn of （η—C5H5）2Ti （Cin）2 and （η—C5H5）2Ti（Tzea）2

Two new Complexes(Cp)2Ti(Cin)2and (CP2)Ti(Tzea)2(CP=Cyclopentadienyl η^5-C5H5)have been synthesized in THF by the reaction of HCin(Cincofen,2-phenylquinoline-4-carboxylic acid)or HTzea(5-phenyltetrazolyl-2-ethanoic acid)with(Cp)2TiCl2,and characterized by elemental analyses,IR,1H NMR and 13C NMR,UV spectra,molar conductivity,TGDTA.In the complexes the carboxyl groups are coordinated to Ti(IV)in a monodentate manner,The inhibitory actions of the complexes on mice ear tumefaction caused by croton oil and the rat foot granulation growth produced by cotton wool are higher than those of the corresponding ligands HCin,HTzea and [(Cp)2TiCl2],while their toxicities are lower than those of the free ligands.ηη     

（Mo3（μ2—O）（μ—Cl）3（μ—O2CR3）Cl3）^—系列三核钼的电化学及热化…

用循环伏安法研究了（Ｍｏ３ＯＣｌ６（Ｏ２ＣＲ）３）＾－（其中Ｒ＝ＣＨ３，Ｈ，ＣＨ２Ｃｌ）系列三核钼簇合物在ＣＨ３ＣＮ和ＤＭＦ溶剂中的电化学行为，并用差热－热重手段研究了它们的热稳定性和热分解过程的可能机理。结果表明在不同溶剂中它们有相似的二对氧化还原峰，而且在同一溶剂中随着Ｒ基团吸电子能力的增强，相应的第一氧化还原电位值向正向移动，当Ｒ＝ＣＨ３，Ｈ时，它们的起始分解温度分别为２６５℃和２１０℃，即     

Structural and Spectroscopic Studies on [Cu（DACH）2（H2O）]—Cl2（DACH—1,4—Diazacycloheptane）

A penta-coordinated Cu(Ⅱ） complex with 1,4-diazacycloheptane (DACH),[Cu(DACH)2(H2O)]Cl2(1),has been synthesized and characterized by X-ray diffraction,IR spectra,elemental analyses,thermal analyses,UV-Vis and ESR techniques.Complex 1 crystallizes in orthorhombic crystal system,Pbcn space group with a=1.6075(4),b=1.0539(3),c=0.9195(3)nm,V=1.5578(7)nm^3,Mr=352.79,Z=4,Dc=1.487g/cm^3,final R=0.0451 and wR=0.1294.The structure of 1 indicates that the central Cu(Ⅱ） atom is penta-coordinated by four nitrogen aboms of two DACH moieties at the equatorial positions and a water molecule at the axis position.The coordination geometry of Cu(Ⅱ） could be considered as an approximately ideal square-pyramidal environment.Both DACH rings arrange in cis-form and are predominantly in the boat-boat conformation (80%) with some disorder to the chair-chair conformation (20%).The Cl^- anions are hydrogen bonded with the nitrogen donors of the DACH rings and the oxygen donor of the coordinated H2O molecule to form a one-dimensional zigzag linear structure. The solution behaviors of 1 are also discussed in detail by Uvvis and ESR technique.     

Rh2（CO）4（μ—Cl）2 和Rh4（μ—CO）3（CO）9的简正振动分析

金属簇合物因其独特的结构和成键而引人注目，鉴于文献上对铑簇合物的结构、成键、反应和催化性能存在的不同看法，本文的两个铑簇合物的简正振动分析以及另文的铑系簇合物的电子结构计算和催化性能研究，为进一步认识上述问题提供了有意义的结果。