呋喃甲醛缩二乙撑三胺希夫碱铜配合物的合成及结构(英)

A novel copper(Ⅱ) complex CuL(NO₃)₂(where L=N,N′-bis(furaldehyde)-diethylenetriamine) was synthesized and characterized by X-ray crystallography analysis. The crystal belongs to monoclinic, space group C2/c with cell parameters a=1.924 0(6) nm, b=0.792 8(3) nm, c=2.504 1(8) nm, β=111.163(5)°, and Z=8. The coordination geometry around Cu(Ⅱ) is a distorted trigonal-bipyramid，and one-dimensional chain is formed through intermolecular hydrogen bonds. CCDC: 255629.     

Solid state reactions of nitrogenous heterocyclic compounds(Ⅰ)——Solid state reactions of 3-methyl-l-phenyl-5-pyrazolone with carbonyl compounds

The solid state reaction of 3-methyl-1-phenyl-5-pyrazolone (MPP) with aromatic aldehydes and ke-tones benzil derivatives and imides,and the solid state Michael addition reaction of MPP with 4-arylidene-3-methyl-1-phenyl-5-pyrnzolone 2 were investigated.Some new solid state reactions between the reactants were found,from which a series of new compounds were obtained The structures of the products were identified by IR,1H NMR,MS,elemental analyses and also by X-ray crystal analysis,and the reaction mechanism of MPP with aromatic aldehydes and ketones was proposed     

Rh／SiO_2上H_2的化学吸附

Ｒｈ／ＳｉＯ_２上Ｈ_２的化学吸附陈耀强，龚茂初，明虹，周建略，杜宗英，祝小红，陈豫（四川大学化学系，成都，６１００６４）关键词Ｒｈ／ＳｉＯ_２催化剂，Ｈ_２化学吸附，ＩＲＨ２在Ｒｈ上的化学吸附被认为是解离化学吸附［１］．而Ｒｈ－Ｈ的红外振动谱带是Ｈ２在...     

Preparation and optical properties of Eu(III) complexes J-aggregate formed on the surface of silver nanoparticles

Ag colloidal nanoparticles coated with Eu(TTA)₃ · 2H₂O complexes were prepared, and it was found that Eu(TTA)₃ · 2H₂O complexes J-aggregate was formed on the surface of Ag nanoparticles according to a red shift (18.2 nm) in UV–Vis spectra. However, there had similar excitation wavelength, which was attributed to existence of Ag nanoparticles. Highly luminescent properties of Ag colloidal nanoparticles were observed, and it was believed to result from low energy transfer between Eu(III) complexes and Ag and the large electromagnetic field arising from the excitation of surface plasmon polariton of Ag nanoparticles.     

偶氮氯膦mk催化动力学光度法测定痕量铱(Ⅳ)

实验发现,在硫酸介质中,Ir(Ⅳ)对KBrO3氧化偶氮氯膦mk的反应具有催化作用,据此建立了测定痕量铱(Ⅳ)的催化光度法。方法测定铱(Ⅳ)的线性范围为0.2~1.2μg/25mL,检出限为6.88×10-10g/mL。拟定的方法已用于冶金产品和岩矿中痕量铱(Ⅳ)的测定,分析结果满意。     

复合Fe2O3纳米粒子的高分子微球的结构表征

近年来，复合有机、无机粒子的高分子微球及其特殊性质越来越引起人们的兴趣与关注［1］．获得有机、无机复合微球的方法很多，如在无机粒子存在下的乳液或无皂乳液聚会[2，3]，通过可聚合的表面活性剂在粒子表面形成胶囊化层[4]以及共沉淀法等[5]．这些无机粒子包括氧化钛、氧化铁、氧化铝及氧化硅等．Haga等[6]增发现包覆在聚合物粒子中的CdS与其本体的光电性质不同；单分散的聚合物微球可以在基片上被组装成二维乃至三维有序的结构[7]．这为信息存储、立体印刷等领域提供了新途径．因此，将无机粒子与聚合物复合成为功能化粒子是一项有…     

重油催化裂化汽油中含氮化合物的分析

利用酸萃取技术浓缩分离重油催化裂化（RFCC）汽油中的氮化物，比较了两种萃取剂和两种油剂比对分离效果的影响，结果发现选用10％（体积分数）HCl作萃取剂，油剂比为10：1（体积比）时，碱性氮化物的提取率较高；浓缩分离出的氮化物用色谱－质谱联用方法对其进行了检测，结果表明RFCC汽油中的氮化物主要是C0－C2苯胺及少量吡啶类、喹啉类碱性氮化物。     

无机胺合成ZSM-5沸石的结构表征和催化作用

分别以氨水和正丙胺为模板剂 ,在 177℃温度下静止晶化 5 0小时 ,合成出ZSM - 5沸石分子筛 .经XRD和IR测试 ,两者具有基本相同的结构 ;TG -DSC分析证明 ,两者都具有优良的热稳定性 .由于有机胺易氧化分解 ,故使得后者的腔内包含物氧化放热峰前移约 4 0℃ .合成的ZSM - 5沸石经用不同离子交换后 ,用于催化己烷芳构化反应     

Photo-and Electro-luminescence of the New Ternary Europium(III) Complex

In recent years, the interest in developing luminescent lanthanide complexes has been greatly stimulated by their potential use in electroluminescent displays1. Europium complexes appear most attractive in view of the high photoluminescent efficiency and the high monochromatic red light that are widely exploited in full-color displays2. It has been approved that the second ligand plays an important role in europium complexes, the synergistic complexation of the second ligand can not only lead …