稀土氨基酸配合物的研究情况分析

系统分析了 1991～ 2 0 0 1年间发表的近百篇有关稀土与氨基酸配合物的文献 ,主要讨论作者国籍、刊物、机构、内容和方向等方面的问题。中国的科研人员对稀土氨基酸二元配合物的合成、性质、结构进行了系统的研究。从 90年代末开始 ,研究朝着稀土 氨基酸 过渡金属异核配合物和以氨基酸为配体的高pH值下镧系 羟基自组装配合物的方向发展     

Study on Laser Drilling in Rare Earth Magnets

ＳｔｕｄｙｏｎＬａｓｅｒＤｒｉｌｉｎｇｉｎＲａｒｅＥａｒｔｈＭａｇｎｅｔｓＬｉｕＬｉｍｉｎ（刘丽敏），ＬｉＣｈａｎｇｊｉａｎｇ（李长江）（ＢｅｉｊｉｎｇＵｎｉｖｅｒｓｉｔｙｏｆＣｈｅｍｉｃａｌＴｅｃｈｎｏｌｏｇｙ，Ｂｅｉｊｉｎｇ１０００２９，Ｃｈｉｎ...     

The Thermodynamic Property of Rare Earth Complexes with L-Threonine

In this paper the stability constants and thermodynamic parameters for complexes of rare earth elementswith L-threonine have been measured systematically by potentiometry and calorimetry at 25℃ and ionicstrength of 0.15 mol/L(NaCl).The thermodynamic values for protonation of the anion of L-threonine havebeen obtained.The dependence of stability,enthalpy and entropy change of the complex upon atomic number ofcation is investigated,and the coordination of L-threonine to rare earth is also discussed in detail.     

Thermodynamic Study on the Rare Earth Vapour Complex PrAl_3Cl_(12)

ＴｈｅｒｍｏｄｙｎａｍｉｃＳｔｕｄｙｏｎｔｈｅＲａｒｅＥａｒｔｈＶａｐｏｕｒＣｏｍｐｌｅｘＰｒＡｌ３Ｃｌ１２ＷａｎｇＬｉｎｓｈａｎ（王林山），ＧａｏＲｏｎｇｊｉｅ（高荣杰），ＳｕＹｉ（苏轶），ＷａｎｇＺｈｉｃｈａｎｇ（王之昌）（Ｄｅｐａｒｔｍｅｎｔ...     

Voltammetric Study on the Complexes of the Rare Earths with Tetraphenylporphyrin

Fifteen rare earth-tetraphenylporphyrin(RE-TPP)complexes were directly prepared by mixing equalmolar concentrations of RE(ClO_4)_3 and H_2TPP in acetone media.The electrochemical behaviors of these com-plexes and the influence of dissolved oxygen were investigated by voltammetry.Althrough there are some differ-ence between the behaviors of light and heavy rare earth-porphyrins,the central RE ions of the all fifteen com-plexes were reduced from tervalent to divalent state,meanwhile the dissovled oxygen was reduced as superoxideion O~-.which readily combined with the complex forming peroxide additive complex such as RE-TPP·O~(2-)_2.     

Thermochemical Properties of Solid Complexes of Rare Earth Nitrates with Methionine

ＴｈｅｒｍｏｃｈｅｍｉｃａｌＰｒｏｐｅｒｔｉｅｓｏｆＳｏｌｉｄＣｏｍｐｌｅｘｅｓｏｆＲａｒｅＥａｒｔｈＮｉｔｒａｔｅｓｗｉｔｈＭｅｔｈｉｏｎｉｎｅＧａｏＳｈｅｎｇｌｉ（高胜利），ＹａｎｇＸｕｗｕ（杨旭武），ＲｅｎＤｅｈｏｕ（任德厚）ＳｈｉＱｉｚ...     

水杨醛缩邻氨基苯酚稀土金属配合物的合成与表征

报道了水杨醛缩邻氨基酚与La3+,Ce4+,Pr3+,Nd3+,Sm3+,Eu3+,Gd3+,Tb3+,Dy3+,Ho3+,Er3+,Tm3+,Yb3+,Lu3+等镧系稀土离子配合物的合成,通过红外光谱、紫外光谱、荧光光谱、摩尔电导、差热以及元素分析等对稀土配合物进行了表征,其组成分别为I:HML2·2H2O(M=La,Ce,Sm,Eu,Gd);II:ML·Y·X:(IIa:Y=H2O,M=Pr,Nd,Lu,X=Cl;M=Tb,X=NO3-。IIb:M=Dy,Ho,Er,Tm,Yb,Y=C2H5OH,X=Cl-),并推测了其可能的结构。还发现La3+和Lu3+对该配体有较强的激活作用,显著地增大了该配合物的荧光强度。     

Synthesis, Characterization and Catalytic Activity of Propionamide Complexes of Rare Earth Chlorides

ＴｈｅｒａｒｅｅａｒｔｈｓｙｓｔｅｍｏｆＺｉｅｇｌｅｒＮａｔａｃａｔａｌｙｓｔｃａｎｂｅａｐｐｒｏｘｉｍａｔｅｌｙｄｉｖｉｄｅｄｉｎｔｏｔｗｏｍａｉｎｃａｔａｌｏｇｕｅｓ，ｔｈａｔｉｓ，ｔｈｅｔｒｉｎａｒｙｓｙｓｔｅｍａｎｄｔｈｅｂｉｎａｒｙｓｙｓ...     

Anti-Influenza Virus Activity of Heteropoly Complexes Containing Rare Earth Elements

ｎｆｌｕｅｎｚａ，ｕｓｕａｌｙｃａｕｓｅｄｂｙｉｎｆｌｕｅｎｚａｖｉｒｕｓ，ｉｓａｋｉｎｄｏｆｗｏｒｌｄｗｉｄｅｉｎｆｅｃｔｉｏｕｓｄｉｓｅａｓｅｓｔｈａｔｃａｎｎｏｔｂｅｃｏｎｔｒｏｌｅｄｅｆｅｃｔｉｖｅｌｙａｔｐｒｅｓｅｎｔ．Ｔｈｅｍｏｓｔｗｉｄ...     

Lubricity of Rare Earth Compounds in Oil

Ｉｎｒｅｃｅｎｔｙｅａｒｓ，ｔｈｅａｐｐｌｉｃａｔｉｏｎｏｆｒａｒｅｅａｒｔｈｃｏｍｐｏｕｎｄｓｉｎｔｈｅｔｒｉｂｏｌｏｇｉｃａｌｆｉｅｌｄｈａｓｂｅｃｏｍｅｏｎｅｏｆｔｈｅｍｏｓｔｉｎｔｅｒｅｓｔｉｎｇｒｅｓｅａｒｃｈｔｏｐｉｃｓｆｏｒｔｒｉｂｏｌ...     

Report on Rare Earth Market Evolution and Involvement of Rhone－Poulenc in the Market

ＲｅｐｏｒｔｏｎＲａｒｅＥａｒｔｈＭａｒｋｅｔＥｖｏｌｕｔｉｏｎａｎｄＩｎｖｏｌｖｅｍｅｎｔｏｆＲｈｏｎｅ－ＰｏｕｌｅｎｃｉｎｔｈｅＭａｒｋｅｔＭａｔｔｈｅｗｓＪＤ；ＶａｎｄｅｒｓｔｒｉｃｈｔＪＰ（Ｒｈｏｎｅ－ＰｏｕｌｅｎｃＲａｒｅＥａｒｔｈｓａｎｄ...     

Molecular Design and Electronic Structure of Polynuclear Rare Earth Complexes and Clusters

Studies on the electronic structure,molecular design,syntheses of some novel series of tetranuclear rareearth complexes in our laboratory have been reviewed.Spin-unrestricted localized INDO method was used tocalculate the electronic structure and the chemical bonding in the typical rare earth cluster Sc[Sc_6Cl_(12)Co]wasdiscussed.     

Syntheses and Infrared Spectra of Rare Earth Complexes with Diethyl Phosphate

The title complexes Ln(DEP),(Ln=La,Sm,Eu,Ho and Yb)were synthesized by reaction of triethylphosphate with trivalent rare earth chlorides.The mechanism of thermo-decomposition of the complexes hasbeen studied.According to their IR spectra,the residues of the thermo-decomposition of the complexes wereidentified as Ln(PO_3)_3.Their IR spectra were measured and principal IR bands were assigned.The experimentalresults of the IR spectra of the complexes show that the title complexes have the same coordination form and mo-lecular configuration as rare earth,e.g.Sm,complex with dimethyl phosphate(Sm(DMP)_3).Each of the rareearth ion links three rare earth ions nearby through double“O-P-O”bridges to form a special network ofrings-linking-rings,each of which consists of twenty-four atoms.The Ln-O bond is principally ionic.     

Study on Electronic Structure of Rare Earth Complex with Dioxygen

The electronic structure and chemical bonding of[Ce(CO_3)_3O_2]_2~(8-) have been studied by INDO(Intermediate Neglect of Differentiated Overlap)method in this paper.The results obtained show that theHOMO of[Ce(CO_3)_3O_2]_2~(8-) is mainly composed of the anti-bonding π orbitals of the pcroxide ion(O_2~(2-))and the LUMO is mainly composed of the 4f orbitals of the Ce(Ⅳ).The peroxide ion coordinates to ceric ionby means of σ and π dative bonds.After coordination the O-O bond of the peroxide ions is strengthened.Bycomparison with cerous complexes,the contribution of the 4f orbitals to bonding increases in the ceric com-plex.     

Ti—6242S合金在β区的锻造工艺研究

采用光学显微镜、扫描电和力学性能测试等设备了Ｔｉ－６２４２Ｓ合金相变点以上４５℃加热,变形量为７０％空冷的锻造工艺,经双重退火处理,获得细小网篮状组织。这种组织为α＋β两相区锻造下的等轴组织相比,不但具有良好的室温和高温力学性能,而且还提高了材料的高温持久、蠕变强度、冲击和断裂韧性,该合金的β区锻造工艺,放于加工航空发动机压气机盘模锻件。     

稀土(Ⅲ)硝酸盐与4-羟基-3-甲氧基苯甲醛缩乙二胺双希夫碱配合物的合成与性质

由双希夫碱４－羟基－３－甲氧基苯甲醛缩乙二胺与稀土（Ⅲ）硝酸盐（Ｌａ，Ｎｄ，Ｇｄ，Ｔｂ，Ｈｏ），合成了五种固体配合物。对配合物进行了元素分析、摩尔电导、红外光谱、紫外光谱、差热—热重分析。确定了配合物的组成为ＬｎＬ（ＮＯ３）３。     

Electrodeposition of Rare Earth Metals and Their Alloys in Organic Electrolytes

Ｔｈｅｆｉｌｍｓｏｆｒａｒｅｅａｒｔｈｓｈａｖｅｍａｎｙｆｕｎｃｔｉｏｎａｌｐｅｒｆｏｒｍａｎｃｅｓａｎｄｈａｖｅｂｅｅｎｗｉｄｅｌｙａｐｐｌｉｅｄｉｎｍａｇｎｅｔｉｃ，ｏｐｔｉｃａｌ，ｎｕｃｌｅａｒ，ｓｕｐｅｒｃｏｎｄｕｃｔｉｎｇｍａｔｅｒｉ...     

稀土有机配合物发光及光声光谱研究方法

简要综述了稀土有机配合物发光研究的进展。光声光谱从无辐射的新角度对这一领域进行研究，结果表明：光声光谱能简便而有效地反映稀土离子的能级状况，确定能级的荧光性质，根据光声光谱的振幅和位相谱，可了解稀土配合物发光的能量传递和弛豫途径。     

Photophysical Properties of Rare Earth Complexes with 3,4 Furandicarboxylic Acid and 1,10 Phenanthroline

Ｒａｒｅｅａｒｔｈｃｏｍｐｌｅｘｅｓｗｉｔｈａｒｏｍａｔｉｃｃａｒｂｏｘｙｌｉｃａｃｉｄｓｈａｖｅｅｘｃｅｌｅｎｔｌｕｍｉｎｅｓｃｅｎｃｅｐｒｏｐｅｒｔｉｅｓ,ａｎｄａｔｒａｃｔｍｕｃｈａｔｅｎｔｉｏｎｏｆｃｈｅｍｉｓｔｓ［１］．Ｉｎｒｅｃｅｎｔ...     

Effect of Rare Earth Metals on Microstructure of Directional Solidified Al－3Li Alloy

ＥｆｆｅｃｔｏｆＲａｒｅＥａｒｔｈＭｅｔａｌｓｏｎＭｉｃｒｏｓｔｒｕｃｔｕｒｅｏｆＤｉｒｅｃｔｉｏｎａｌＳｏｌｉｄｉｆｉｅｄＡｌ－３ＬｉＡｌｌｏｙ￥ＷａｎｇＬｉ－Ｍｉｎ；ＤａｎｇＰｉｎｇ；ＤｕＦｕ－Ｙｉｎｇ；ＺｈａｏＭｉｎ－Ｓｈｏｕ（Ｃｈａｎｇｃｈｕ...