邻菲罗啉和水杨酸与RE(Ⅲ)三元配合物的合成及表征

在无水甲醇中合成了邻菲罗啉 ( Phen)、水杨酸 ( HSal)与 Nd( )、Sm( )的固态三元配合物。研究了其化学组成、溶解性、红外光谱和摩尔电导等性质 ,证实配合物的化学组成式为 Nd( Phen) 2 ( Sal) 2 Cl· H2 O及 Sm( Phen) 2 ( Sal) 2 Cl· H2 O,金属离子的配位数为 9。     

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。     

Synthesis and Luminescence of Complexes EuxY1-x（phen）L3

A series of binuclear complexes with different molar ratio of europium to yttrium with cinnamic acid and o-phenanthroline were synthesized in anhydrous alcohol. Elemental analysis shows that the composition of the complexes areEuxY1-x(phen)L3(L: C6H5CH=CHCOO, x = 1.0, 0.7, 0.5, 0.3 and 0.1). The IR absorption spectra indicate that cinnamate is coordinated to the rare earth ions and chemical bonds are formed between rare earth ions and nitrogen atoms of o-phenanthroline. Fluorescent spectra show that the emission of Eu^3 ion can be greatly enhanced if some of europium ions in the complexes are substituted by yttrium ions.     

Synthesis Crystal Structureof Quaternary Mixed AnionComplex of Lanthanides[Ln(CCl_3COO)_2 (CH_3COO)(phen) (H_2O)]_2

Synthesis Crystal Structureof Quaternary Mixed AnionComplex of Lanthanides[Ln(CCl_3COO)_2 (CH_3COO)(phen) (H_2O)]_2     

Syntheses and Characterization of Binuclear Complexes Tb（1-x）Eux（TTA）3 Phen

Rare earth ternary complexes Tb1-xEux（TTA）3Phen（x=0,0.25,0.5,0.75,1.0）were synthesized and characterized by DTA-TG,XRD and infrared（IR）.The photophysical properties of these complexes were studied in detail using ultraviolet absorption spectra and fluorescent spectra.Ultraviolet absorption showed that the energy absorption of the complexes mostly came from ligands.Infrared spectra of Tb1-xEux（TTA）3Phen complexes were similar to the pure complexes.TG curves proved that the complexes were stable.Tb3＋ emission was almost quenched and the Eu3＋ emission was enhanced by codoping the complexes.The Tb3＋ ion acted as an energy transfer bridge that helped energy transfer from poly（N-vinylcar-bazole（PVK）to Eu3＋.In addition,their PL and EL properties were systematically studied.     

Synthesis and Structure of Polynuclear Complex [La(bphsb)2(NO3)3]n

Ｓｏｍｅｌａｎｔｈａｎｉｄｅｃｏｍｐｌｅｘｅｓｗｉｔｈｄｉｓｕｌｆｏｘｉｄｅｓｈａｖｅｂｅｅｎｓｔｕｄｉｅｄ［１，２］．Ｈｏｗｅｖｅｒ，ｒｅｌａｔｉｖｅｌｙｌｉｔｌｅｗｏｒｋｈａｓｂｅｅｎｄｏｎｅｏｎｃｒｙｓｔａｌｓｔｒｕｃｔｕｒｅｏｆｔｈｅｓｅｃｏ...     

Synthesis, Characterization and Thermal Decomposition of Ln (Me2dtc)3(phen) (Ln=La, Pr, Nd, Sm)

Four solid complexes of Ln(Me2dtc)3(phen) (Ln=La, Pr, Nd, Sm) were synthesized in anhydrous ethanol by the reaction of lanthanide chloride low hydrate with the mixed ligand of sodium dimethyldithiocarbamate and 1, 10-phenanthroline·H2O (phen·H2O), and characterized by elemental analysis, IR spectroscopy, TG-DTG, and X-ray diffraction analysis. TG-DTG with X-ray powder diffraction showed that these compounds could decompose to lanthanide sulfides at relatively lower temperature, which indicated that the title complexes could be favorable precursors to prepare lanthanide sulfides.     

Studies on Heterobinuclear Complexes of Ln3 and Zn2 with Acyclic Polyether Schiff Base

Ｔｈｅｒａｐｉｄｌｙｇｒｏｗｉｎｇｉｎｔｅｒｅｓｔｉｎｐｏｌｙｎｕｃｌｅａｒｃｏｍｐｌｅｘｅｓａｒｉｓｅｓｆｒｏｍｔｈｅｓｉｇｎｉｆｉｃａｎｔｒｏｌｅｗｈｉｃｈｈａｓｐｌａｙｅｄｉｎｔｈｅｅｘｔｅｎｓｉｖｅａｒｅａｓｏｆｃａｔａｌｙｓｔｓ,ｍａｇｎｅ...     

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

ＴｈｅｒａｒｅｅａｒｔｈｓｙｓｔｅｍｏｆＺｉｅｇｌｅｒＮａｔａｃａｔａｌｙｓｔｃａｎｂｅａｐｐｒｏｘｉｍａｔｅｌｙｄｉｖｉｄｅｄｉｎｔｏｔｗｏｍａｉｎｃａｔａｌｏｇｕｅｓ，ｔｈａｔｉｓ，ｔｈｅｔｒｉｎａｒｙｓｙｓｔｅｍａｎｄｔｈｅｂｉｎａｒｙｓｙｓ...     

Pharmacological Study on Antitumor Activity of 5-Fluorouracil-1-Acetic Acid and Its Rare Earth Complexes

5Ｆｌｕｏｒｏｕｒａｃｉｌ(5ＦＵ)ｉｓａｎａｎｔｉｔｕｍｏｒｄｒｕｇｗｈｉｃｈｈａｓｂｅｅｎｃｏｍｍｏｎｌｙｕｓｅｄｉｎｔｈｅｃｌｉｎｉｃ.Ｂｅｃａｕｓｅ5ＦＵｉｓｈａｒｍｆｕｌｔｏｋｉｄｎｅｙａｎｄｄｉｇｅｓｔｉｖｅｓｙｓｔｅｍ,ｉｔｓａｐｐｌｉｃａｔｉｏｎｉｓｌｉｍｉｔｅｄ.Ｔｈｕｓｔｈｅｓｔｕｄｉｅｓｏｎａｎｔｉｔｕｍｏｒａｃｔｉｖｉｔｙｏｆ5ＦＵｄｅｒｉｖａｔｉｖｅｓａｒｅｖｅｒｙａｃｔｉｖｅｉｎｒｅｃｅｎｔｙｅａｒｓｔｏｅｘｐｌｏｒｅｈｉｇｈｅｆｆｅｃｔｉｖｅａｎｄｌｏｗｔｏｘｉｃａｎｔｉｔ…     

NMR Studies on Eu and La Complexes with Pyridine-2,6-Dicarboxylic Acid and Phen

ＮＭＲＳｔｕｄｉｅｓｏｎＥｕａｎｄＬａＣｏｍｐｌｅｘｅｓｗｉｔｈＰｙｒｉｄｉｎｅ２，６ＤｉｃａｒｂｏｘｙｌｉｃＡｃｉｄａｎｄＰｈｅｎＹａｎｇＱｉｕｑｉｎｇ（杨秋青）（ＥｘｐｅｒｉｍｅｎｔａｌＣｅｎｔｅｒ，ＨｅｂｅｉＮｏｒｍａｌＵｎｉｖｅｒｓｉｔｙ...     

Ternary Complexes of Rare Earth Nitrate with B-15-C-5 and 4-Picoline N-Oxide

A series of ternary complexes of rare earth(Ⅲ)nitrate with benzo-15-crown-5 and 4-picoline N-oxidehave been prepared.They have the general formula of RE(NO_3)_3·2(4-picNO)·3H_2O·(1/2)(B-15-C-5)(RE=La～Tm).Their physico-chemical properties have also been studied with conductance,thermal analysisand IR absorption spectroscopy.     

Synthesis of the Early Lanthanide Complexes[Li(DME)_3][MeCpLn(NPh_2)_3](Ln=La,Pr,Nd)and X-Ray Crystal Structure of La Complex

The reaction of MeCpLnCl·2LiCl·nTHF with 2 equivalent of LiNPh_2 in THF,hexane andtoluene mixture solution gives the new complex[Li(DME)_2][(η~5-MeCp)Ln(NPh_2)_3](Ln=La,Pr,Nd)byextraction with DME.They have been characterized by elemental analysis,IR and NMR.The La complexcrystallizes in the monoclinic space group P2_1/c with α=1.8335(6)nm,b=1.6576(5)nm,c=1.7461(6)nm,β=96.04°,V=5.277 nm~2,Z=4,D_c=1.26g·cm~(-3),R=0.057 and R_w=0.048(1≥2.5σ(I_o))for 3378 reflec-tions.The complex consists of a pair of a cation and an anion.La~(3+) is coordinated by onemethylcyclopentadienyl and three diphenylamidos to form six-coordinate pseudotetrahedron with the meanLn-N and La-C(ring)distances of 0.2459(8)and 0.2843(11)nm,respectively.     

轻稀土-2,5-噻吩二羧酸-1,10-菲咯啉三元配合物的合成、表征及谱学性质

合成了几种新型的轻稀土2,5-噻吩二羧酸-1,10-菲咯啉的三元配合物,通过元素分析、热分析、红外光谱法确定其组成为Ln2(L)3(phen)2·nH2O(Ln=La,n=2;Ln =Sm,Eu,Gd,n =4).重点研究了铕配合物的荧光性能,并测定其荧光寿命为0.83 ms.另以Gd3+配合物为模型化合物,通过低温磷光光谱确定了2,5-噻吩二羧酸配体的三重态能级为18200 cm-1,并通过低温磷光寿命的测定详细讨论了有机配体之间的分子内能量传递机制和效率.     

Synthesis and Characterization of Lanthanide Complexes Involving Cyclopentadienyl and Benzohydroximic Acid Ligand

Ｉｎｇｅｎｅｒａｌ,ｈｙｄｒｏｘｉｍｉｃａｃｉｄｓ (ＲＣＯＮ ＨＯＨ)ａｒｅｗｅａｋｏｒｇａｎｉｃａｃｉｄｓ .ＴｈｉｓｃｌａｓｓｏｆｏｒｇａｎｉｃｃｏｍｐｏｕｎｄｓｃｏｎｔａｉｎｉｎｇｔｈｅｒｅａｃｔｉｖｅｇｒｏｕｐＣＯＮＨＯＨ ,ｋｎｏｗｎａｓｔｈｅｈｙｄｒｏｘｉｍｉｃａｃｉｄｓ,ｈａｖｅｂｅｅｎｗｉｄｅｌｙｓｔｕｄｉｅｄｂｙｏｒｇａｎｉｃｃｈｅｍｉｓｔｓ.Ｔｈｅｈｙｄｒｏｘｉｍｉｃａｃｉｄｓａｒｅｃｈｅｌａｔｅｌｉｇａｎｄｓｆｏｒｍａｎｙｍｅｔａｌｓ .Ｔｈｅｙａｒｅｗｉｄｅｌｙｕｓｅｄａｓｃｈｅｌ…     

Synthesis and Characterization of the First Dinuclear Europium (Ⅱ) Complex Supported by Carbon-Bridged Biphenolate Ligand

Anhydrous EuCl3 reacted with sodium carbon-bridged biphenolate LNa2 [ L = 2,2'-methylene bis (6-tert-butyl-4-methyl-phenoxo] in a 1:1 molar ratio in THF in the presence of HMPA (HMPA = hexamethylphosphoric triamide), then the product formed in situ was reduced by Na-K alloy to generate the divalent carbon-bridged biphenolate europium complex [LEu(HMPA)2]2(THF)4(1) in a good isolated yield. Complex 1 was fully characterized by elemental analysis, NMR and IR spectra, and X-ray structural determination. The crystal data of complex 1 are monoclinic, P21/c space group,a = 1.6521(3) nm, b =2.8274(3) nm, c = 1.2074(2) nm, β = 111.723(6)°, V= 5.2393(14) nm3, Z = 2, Dc =1.259 mg·m-3, μ = 1.304 mm-1, F(000) = 2092, R = 0.0815, wR = 0. 1723. Complex 1 is a dimer with two Eu - O bridges. The coordination geometry of each europium atom can be best described as a distorted trigonal bipyramid.     

Mechanochemical Effects in Ln_2O_3-Ln(OH)_3-(H_2O)(Ln=La,Nd) System

ＭｅｃｈａｎｏｃｈｅｍｉｃａｌＥｆｅｃｔｓｉｎＬｎ２Ｏ３Ｌｎ（ＯＨ）３（Ｈ２Ｏ）（Ｌｎ＝Ｌａ，Ｎｄ）ＳｙｓｔｅｍＤｉｍｉｔｒＴｏｄｏｒｏｖｓｋｙ，ＡｔａｎａｓＴｅｒｚｉｅｖ（ＦａｃｕｌｔｙｏｆＣｈｅｍｉｓｔｒｙ，ＵｎｉｖｅｒｓｉｔｙｏｆＳｏｆｉａ...     

Synthesis, Characterization and Crystal Structure of Neutral Homoleptic Lanthanide Amide Yb(NPh_2)_3(THF)

Ｌａｎｔｈａｎｉｄｅａｍｉｄｅｃｏｍｐｌｅｘｅｓａｒｅａｎｉｍ ｐｏｒｔａｎｔｃｌａｓｓｏｆｐｒｅｃｕｒｓｏｒｓｆｏｒｌａｎｔｈａｎｉｄｅｄｅｒｉｖａｔｉｖｅｓ .Ｉｔｃａｎｂｅｅａｓｉｌｙｔｒａｎｓｆｏｒｍｅｄｔｏｃｏｒ ｒｅｓｐｏｎｄｉｎｇｌａｎｔｈａｎｉｄｅｃｏｍｐｌｅｘｂｙｒｅａｃｔｉｎｇｗｉｔｈｉｎｖｏｌｖｉｎｇｐｒｏｔｉｃｒｅａｇｅｎｔｓ[1,2 ] .Ｔｈｅｌａｎｔｈａｎｉｄｅａｍｉｄｅｕｓｅｄａｓｓｙｎｔｈｅｔｉｃｐｒｅｃｕｒｓｏｒｉｓｎｅｕｔｒａｌｈｏｍｏｌｅｐｔｉｃｃｏｍｐｌｅｘ ,ｏｔｈ…     

Synthesis and Characterization of Eu4(PMA)3(phen)0.75·7H2O Ternary Luminescent Complex

Eu(Ⅲ)-Pyromellitic acid[PMA]-1,10-phenanthroline (phen) ternary luminescent complex was prepared in ethanol and water mixed solvent. The elemental analysis, inductively coupled plasma-atomic emission spectroscopy (ICP-AES) fourier-transform infrared spectroscopy (FT-IR) indicates that its chemical constitution is Eu4(PMA)3(phen)0.75·7H2O. TG-DTA curves indicated that the complex is heat stable at the temperature of 430 ℃. The XRD patterns showed that the complex is a new crystal different from the two ligands' structures. SEM image indicates that the complex is in block shape and disperses well. Photoluminescence (PL) analysis indicates that the complex emits Eu3 characteristic luminescence under ultraviolet excitation.     

Synthesis and Characterization of the First Dinuclear Europium （Ⅱ） Complex Supported by Carbon-Bridged Biphenolate Ligand

Amongpossiblealternativestothetraditionalan cillaryligandbis(cyclopentadienyl)setinrareearth metalchemistry,alkoxides(aryloxides)havereceived muchattentionandbecomeincreasinglypopularsince theyareeasilyavailable,tunableandevenpotentially recyclableancillarysetsformediatingthereactivityof theseelectropositivecations[1,2].Thechelatebiphenol andbinaphtholhavebeenfoundtobeabletoactasa dianionicligandintherareearthchemistry,whichhas theadvantagesofavoidingligandredistributionreac tions,andallowingth…