一种新方法合成荧光β-二酮铜(Ⅰ)配合物(英)

At room temperature, the reducing reaction between the bis(diphenylphosphino)butane (dppb) ligand and the compound [Cu(tfac)₂] (tfac=2-thenoyltrifluoroacetone) gave luminescent copper(Ⅰ) complex [Cu(dppb)(tfac)]₂. They have been characterized by physicochemical and spectroscopic methods. Crystal structure of the title complex shows that 2-thenoyltrifluoroacetone behaves as chelating ligand and dppb coordinates as bridging bidentate ligand to Cu(Ⅰ) atoms in the newly prepared copper(Ⅰ) complex. The crystal is monoclinic, space group P2₁/n, with cell parameters a= 1.031 0(2) nm, b= 1.8730(4) nm, c= 1.7630(4) nm, β = 95.10(3)°, Z = 4, V= 3.391 0(12) nm³, R= 0.060 3, wR= 0.1434. CCDC: 228393.     

Synthesis and Characterization of an Unexpected Asymmetric Binuclear Copper(I) Complex Containing 4-Vinyl-pyridine

Introduction Many examples of complexes containing the eight-membered ring M(-dppm)M' are known with a variety of metals, oxidation states and stereochemis-tries.1-4 In general, they contain trans-bound, bridging dppm ligands to give a planar M2P4 core structure with the two metal atoms held in close proximity to each other (regardless of whether a metal-metal bond is pre-sent or not). This feature is presumably one of the chief reasons for the unusual bonding, reactivity and catalytic prope…     

双二苯基膦甲烷和μ^4-S的四核铜(Ⅰ)配合物的 合成与结构

室温下,双核配合物[Cu(dppm)(NO~3)]~2与二硫化碳反应制备了四核铜(Ⅰ)配合物[Cu~4(S)(dppm)~4](PF~6)~2·CH~2Cl~2(dppm=双二苯基膦甲烷),并经光谱学方法表征了配合物的物理化学性质。X射线四圆衍射测定结果表明dppm属桥式双齿配位,S^2^-以μ^4形式与中心铜离子配位,PF~6^-位于配合物的外界,铜离子呈现三角平面配位构型。     

利用还原取代反应合成双核铜(Ⅰ)配合物及其晶体结构研究

铜(Ⅰ)配合物由于其变化奇异的结构、性质及配位数而引起化学工作者的广泛兴趣.四电子供体双二苯基膦甲烷(dppm)适宜在近距离内与2个金属原子同时配位,容易形成八元环的二聚体M₂P₄C₂,因而是桥联2个低氧化态过渡金属的最佳选择.     

含混合配体双核铜（I）配合物的合成及荧光光谱

合成了含双二苯基膦甲烷（dppm)和邻菲咯啉（phen)混合配体的双核铜（I）配合物[Cu(dppm)(phen)]2(NO3)21,并经X射线单晶结构分析表征了配合物的结构，研究了配合物的荧光光谱特征，配合物1的结构分析表明，dppm作为桥式双齿配体、phen作为双齿配体分别与铜原子形成四面体配位结构，硝酸根离子位于配合物外界。     

Syntheses of Binuclear Copper(I) Complexes Containing Benzimidazole

1 INTRODUCTION Procedures to synthesize copper(I) complexes are of great interest due to the diversity of products resulting from almost the same methodology. It has been long known that four-electron-donordipho- sphine compounds Ph2P(CH2)nPPh2 are excellent bi- dentate ligands[1, 2]. The chelating tendency of bis- (diphenylphosphino) methane is one of the dipho- sphine ligands most suitable to lock two metal atoms together in close proximity[3]. Many examples of bi- or polynuclear com…     

两个二亚胺-铜(Ⅰ)-膦配合物的合成、结构和太赫兹时域光谱（英文）

本文报道了2个新的Cu(Ⅰ)配合物:[Cu(PPh3)2(dppz)]I(1)(PPh3=三苯基膦,dppz=二吡啶并[3,2-a∶2′,3′-c]吩嗪)和[Cu2(dppm)2(dppz)2]Cl2(2)(dppm=双(二苯基膦)甲烷)的合成,并通过X射线单晶衍射、元素分析、核磁共振氢(膦)谱、荧光光谱和太赫兹时域光谱对其进行了分析和表征。分析结果显示配合物1是一个单核配合物,中心Cu(Ⅰ)离子与2个含膦配体(PPh3)和1个含氮配体(dppz)进行配位,形成了一个扭曲的四面体结构。与1不同的是,配合物2是由CuCl,dppm和dppz以1∶1∶1的比例混配得到的双核配合物。其中,双膦配体dppm作为桥联配体,连接了2个Cu(Ⅰ)离子。荧光光谱表明所有的发射峰均源于金属到配体的电荷转移跃迁(MLCT)。同时,使用太赫兹时域光谱技术表征了2种配合物以及相应的配体。     

Synthesis and Crystal Structure of Bridging Complex [Cu_2(bipy)_2·OAc·Cl·OH]·TsTausH·3H_2O

1 INTRODUCTION The binuclear complexes have been widely studied in many fields, such as catalysis, semi- conductor and bioinorganic chemistry because of their rich physical and chemical properties[1～4]. The complexes with N-P-tolysulonyl--amino acids ha…     

Synthesis,structure and characterization of binuclear copper(I) complexes

Binuclear copper(I) complexes [Cu(dppm)(NO3)]2 (1), dppm=Ph2PCH2PPh2, [Cu(dppm)(2,9-Me2Phen)]2(NO3)2 (2), [Cu(dppm)(I)]2 (3) and [Cu(dppm)(py)]2(NO3)2 (4), (py=pyridine) have been synthesized by ligand reduction of cupric nitrate with dppm in EtOH and characterized by elemental analyses, molecular weight determination, t.g.a., 31P-n.m.r spectra; their electronic conductivities and c.v. waves have also been measured. The results show that dppm coordinates as a bridging bidentate ligand to the CuI atoms, and that NO3 behaves as a monodentate ligand or free ion in the newly prepared complexes.     

Synthesis and Crystal Structure of a Dicopper(Ⅰ) Complex with Bis(diphenylphosphino)methane and Diethyldithiocarbamate

1 INTRODUCTION Dithiocarbamate derivatives and their metal complexes are extremely versatile compounds which have been used, for example, in the treatment of alcoholism, sarcoma cell and as possible pro- tection against the lethal effect of X-rays etc[1]. Owing to the striking structure features and diversified applications of the metal complexes with dithiocarbamate[2～6], it is of theoretical and practical significance to study the coordination chemistry much more adequately. The meta…