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1.
Synthesis Crystal Structureof Quaternary Mixed AnionComplex of Lanthanides[Ln(CCl_3COO)_2 (CH_3COO)(phen) (H_2O)]_2  相似文献   

2.
CrystalStructureandSpectraoftheComplexEu(p-ClC_6H_4COO)_3C_(12)H_8N_2JinLinpei(金林培)(DepartmentofChemistry,BeijingNormalUniversit...  相似文献   

3.
The reaction of NdCl_3 with NaC_5Me_5 generates a novel complex (C_5Me_5)_2Nd(μ-Cl)_2Na(DME)_2 (1).Then (1) reacts with 1 mol ratio Na and a little methyl-naphthalene generating another novel complex(C_5Me_5)_2Nd(μ-OCH_3)_2Na(DME)_2 (2).Complex (1) belongs to orthorhombic crystal system,space groupPbn2_1 with a=1.2635(3) nm,b=1.6127(5) nm,c=1.6543(4J nm,V=3.371(2) nm~3,D_c=1.36 gcm~(-3) andZ=4.The central metal Nd is coordinated by two C_5Me5 ring centroids and two μ-chlorine atoms forming adistorted tetrahedron.The crystal of complex (2) is monoclinic,space group C2/n with a=1.7482(5) nm,b=1.3260(4) nm,c=1.6406(7) nm,β=109.39(3)°,V=3.5874(1) nm~3,D_c=1.26 gcm~(-3) and Z=4,Twofive-membered ring centroids and two p-oxygens of OCH_3 form a distorted tetrahedron around the centralneodymium ion.  相似文献   

4.
Synthesis and Crystal Structure of [Yb(NTO)_3(H_2O)_4]·6H_2O   总被引:3,自引:0,他引:3  
SynthesisandCrystalStructureof[Yb(NTO)3(H2O)4]·6H2OSongJirong(宋纪蓉),DongWu(董武)(DepartmentofChemicalEnginering,NorthwestUniver...  相似文献   

5.
ecausesomerareearthmetalcompoundshavethepromotiveactiontothegrowthofani malsandplants[1 ] ,andthefunctionofantiin flammation ,antibacterium ,anticoagulantionandanticaner[2 ] ,theinvestigationonthesyn thesesandstructuresoftheeverykindsofrareearthmetalcompounds…  相似文献   

6.
Coordination compounds of lanthanide trichloroacetates with 1,10-phenanthroline weresynthesized and characterized as Ln(CCl_3COO)_3·(phen)_2·2H_2O(phen=1,10-phenanthroline,Ln=Tb~Lu)by chemical analysis,IR spectra,thermal analysis and crystal X-ray structural analysis.The crystal ofEr(CCl_3COO)_3·(phen)_2·2H_2O belongs to monoclinic system,with space group P2_1/c,a=1.6969(6)nm,b=1.3776(5)nm,c=1.7563(9)nm,β=114.79(9)°,V=3.727(1)nm~3,Z=4.  相似文献   

7.
Recently ,therehasbeenconsiderablein terestinlanthanide(Ⅲ )hexacyanoferratesandtheanalogouscobalt(Ⅲ )aswellaschromium(Ⅲ )complexesbecauseoftheirpotentialascatalytic ,semiconductive ,andmagneticmate rials[1~ 4] .Forexample ,magneticstudiesonaseriesofthree dimensio…  相似文献   

8.
Reaction of (C_5H_5)_2NdCl·2LiCl with n-Butyllithium: Formation and Crystal Structure of [Li(DME)_3][(C_5H_5)_3Nd(μ-H)Nd(C_5H_5)_3]  相似文献   

9.
Crystalengineeringofcoordinationpoly merswithopenframeworksassembledfromor ganic metalcompoundshasbeenofgreatinter estsowingtotheirpotentialpropertiesasnovelmaterialssuchasgasadsorption[1,2 ] ,ion ex change[3] andcatalysis[4] .Theconstructionofcoordinationpolym…  相似文献   

10.
The reaction of NdCl_3 with lithium methylnaphthalene in 1:2 mole ratio in THF generates black powder.The powder reacts with cyclooctatetraene(COT)in THF to form the title complex.[Li(THF)_4Nd(C_8H_8)_2]·2THF crystallizes in the monoclinic space group P2/c with unit-cell dimensions a=1.7858(7)nm,h=1.3243(4)nm,c=1.8086(6)nm.β=106.52(4)°,V=4.10 nm~3 and D_c=1.268 g/cm~3 for Z=4.F(000)=1660,R=0.0774,R_n=0.0733.The complex consists of discrete ion-pair and two THF moleculesadduct.In the anion,the neodymium atom is coordinated by two COT rings.The structure of the cation showsthat the lithium atom is attached with THF molecules only.  相似文献   

11.
Somelanthanidecomplexeswithdisulfoxideshavebeenstudied[1,2].However,relativelylitleworkhasbeendoneoncrystalstructureoftheseco...  相似文献   

12.
Synthesis,Characterization,CrystalStructureandQuantumChemistryCalculationoftheMixedLigandComplexes[Ln(CF_3COO)_3·(Phen)_2·(H_2O...  相似文献   

13.
合成了镝和硫代脯氨酸、水杨酸的三元固体配合物,通过元素分析、热重分析、红外光谱、摩尔电导等手段进行表征,确定其化学组成为[Dy(C7H5O3)2(C4H6NO2S)].2H2O。根据盖斯定律设计一个热化学循环,用恒温环境溶解-反应量热法研究得到配合反应的标准反应焓为261.290.87 kJ.mol-1,进而算出配合物298.15K时的标准摩尔生成焓为-27803 kJ.mol-1。  相似文献   

14.
The title complex [ErY(Gly)_6(H_2O)4](ClO_4)_6·51H_2O has been synthesized.Its crystal structure has beendetermined by X-ray diffraction method.The crystal is triclinic with space group P.The unit cell parametersare as follows:a=1.1518(4) nm,b=1.4105(7) nm,c=1.5530(6) nm,α=96.61(3)°,β=102.74(3)°,γ=105.70(3)°,V=2.3277(17) nm~3,Z=2,D_(calc)=2.091 g/cm~3.The structure has been refined to a final R of0.0785.The crystal-is an infinite chain complex,in which four carboxyl groups from glycine molecules bridge theEr~(3+) and Y~(3+) ions,and the other two carboxyl groups bridge two adjacent Er~(3+) or Y~(3+) ions.  相似文献   

15.
SynthesisandCrystalStructureofanErbiumComplexwithValine[Er2(Val)4(H2O)8](ClO4)6·4H2OYangWeichun(杨维春),WangRuiyao(王瑞瑶),JinTian...  相似文献   

16.
The crystal structure of title complex has been determined by the method of X-ray single crystaldiffraction.The crystal belongs to monoclinic space group C_(2/c)with the unit parameters a=2.8907(7),b=2.0431(5),c=1.5723(3)nm;β=115.67(2)°.The unit volume V is 8.36924(348)nm~3;Z=8,Dc=1,82g·cm~(-3),μ(MoK_α)=46.4cn~(-1); F(000)=4416.The final R is 0.083,Rw 0.088.The title complex con-sists of two univalent cations and one divalent anion.The anion has a cluster structure including six Sm~(3 ).Coordination numbers of all six Sm~(3 )are eight,but their surroundings are different from each other.Two ofthem are decahedral array,and the others are octahedral array f the centroid of each pentacyclodienyl ring istaken as one point.  相似文献   

17.
Inthepastfewyears ,themagneticprop ertiesofcomplexescomprisinglanthanideandtransitionmetalionshaveattractedincreasinginterest[1~ 6 ] .Thesecomplexesareimportantinthestudiesofmagneticexchangeinteractionbetweenlanthanideandd transitionmetalions,andtheycanpro…  相似文献   

18.
Severalrareearthcomplexeswithcrownethersofstructureformula[RE(OH2)8]Cl3·mL·nH2Ohavebeenstructuralydetermined[1~4],whereL=12c...  相似文献   

19.
SynthesisandCrystalStructureofRE[CH2(CH2)4CONC4H9]3(NO3)3(RE=Dy,La)WangHanzhang(王汉章),XuQingfeng(徐庆锋),QianPu(钱朴)SunJianping(孙建...  相似文献   

20.
Paramagneticmetali0ncomplexeshavemanyapplicati0nsinbiomedicine,especiallyasbioconjugatesf0rmonoclonalantib0dyradioiso-topelabelingandasmagneticresonanceimaging(MRI)agents["'].Polyaminepolycarboxylicacidsandtheirderivativesareveryimportantchelatingagentsformetalions,anddiethylene-triaminepentaaceticacid(H,dtpa)complexwithgadoliniumhasbeenusedasMRlagentintheNMRdiagnosisoft....,[3'4j.HavingsimilarcoordinationabilitywithH5dtpatowardlan-thanideions,triethylenetetraaminehexaaceticacid(H,ttha)can…  相似文献   

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