简介：Twooxo-vanadium(IV)complexes,[VO(C2O4)(2,2′-bipy)(H2O)]·C2H5OH(1)andVO(C2O4)(phen)(H2O)(2),where2,2′-bipy=2,2′-bipyridyl,phen=1,10-phenanthroline,weresynthesizedaspotentialfunctionalmodelsofvanadiumhaloperoxidases(VHPOs)inmixedsolventofethanolandwateratroomtemperature.Thecomplexeswerecharacterizedbyelementalanalysis,infrared(IR),UV-VisandX-raycrystallography.Structuralanalysesshowedthatvanadiumatomwascoordinatedbyaterminaloxygen,oneoxygenatomfromcoordinatedwater,twooxygenatomsfromthecarboxylategroupofoxalicacid,andtwonitrogenatoms(N1andN2)from2,2′-bipy/phen.Centralvanadiumatomsincomplexes1and2werebothinadistorted-octahedralenvironment,andsomeintermolecularhydrogenbondinglinkageswerealsoobservedineachcomplex.BrominationreactionactivityofthetwocomplexeswasevaluatedwithphenolredasorganicsubstrateinthepresenceofH2O2,Br-andphosphatebuffer,indicatingthattheycanbeconsideredasapotentialfunctionalmodelofVHPO.Inaddition,thermalanalysiswasalsoperformedanddiscussedindetail.
简介：ＳＹＮＴＨＥＳＩＳ ＡＮＤ １８３Ｗ ＮＭＲ ＣＨＡＲＡＣＴＥＲＩＺＡＴＩＯＮ ＯＦ Ｐ４Ｗ３０Ａｌ４（Ｈ２Ｏ）２Ｏ１１２２０－ ＨＥＴＥＲＯＰＯＬＹＡＮＩＯＮＳＹＮＴＨＥＳＩＳＡＮＤ１８３ＷＮＭＲＣＨＡＲＡＣＴＥＲＩＺ?..
简介：Thecombinationofboth4,4′-bipyridine(4,4′-bipy)anddihydrogenphosphateanionligandswithcopper(Ⅱ)resultsintheformationofanovellayeredcompoundCu(4,4′-bipy)2(H2PO4)2(H2O)2.ThecrystalstructurecomprisesdiscreteneutralCu(4,4′-bipy)2(H2PO4)2(H2O)2units.Thecopperatom,locatedonthecrystallographictwofoldaxis,iscoordinatedwithtwonitrogenatomsofterminal4,4′-bipyligandsandtwowatermoleculesattheequatorialpositions,andtwodihydrogenphosphateoxygenatomsattheaxialpositions,forminganelongatedoctahedron.Thecomplexisatwo-dimensionaldistortedrhomboidalnetworkpossessingtwokindsofrhomboidswithdimensionsofca.1.6792nm×0.3203nmand1.2778nm×0.3198nm,respectively.Thetwo-dimensionalnetworksarestackedparallellyoneachotheralongc-axistogiveanextendedthree-dimensionalchannelnetworkwithaninterlayerdistanceofca.0.5030nm.Crystaldata:triclinic,spacegroupP-1,a=1.0253(2)nm,b=1.4501(3)nm,c=0.79715(16)nm,α=97.91(3)°,β=90.99(3)°,γ=85.54(3)°,V=1.1703(4)nm3,Z=2,R=0.0892,wR=0.2451.
简介：ThespinelLiMn2O4-x(SO4)xcompoundcathodematerialsweresynthesizedbysolid-statereactionofthecalculatedamountsofLiOH·H2O,MnO2andMnSO4.Theresultsoftheelectrochemicaltestdemonstratedthatthesematerialsexhbitedexcellentelectrochemicalproperties.Thehighestreversiblecapacityoftheseseriesofcathodematerialswas-120mAh/g,andafter50cycles,thisreversiblecapacitywasstillaround116mAh/gwithnearly100%reversibleefficiency,whichrevealedthatdopedsulfateioncouldimprovethestructuralstabilityofspinel.
简介：The2-Dheteronuclearcoordinationpolymer{[Ag4Fe2(SCN)12(H2O)2][(inaH)2(H2O)2]}n(1)(inaHistheabbreviationofprotonatedisonicotinicacid)withchemicalformulaC24H20Ag4Fe2N14O8S12hasbeensynthesizedandcharacterizedbysinglecrystalX-raydiffraction,elementalanalysisandIRspectroscopy.TheAgES2ringsconnecttwokindsofoctahedralgeometriesofFe(Ⅲ)ions,[Fe(NCS)6]^3-and[Fe(H2O)E(NCS)4]^-unitswithbridgingthiocyanateionsleadingto2-D[Ag4Fe2(SCN)12(H2O)2]^2-anionframework.Fourkindsofringsincludingtheunprecedentedthirty-twomemberedAg4Fe4(SCN)8ringssharecomersoredgesinthe2-Danionlayerstructure.AllthiocyanatescoordinatetothemetalionsaccordingtotheHSABprinciplewithNatomsbindingtotheFe(Ⅲ)ionsandwithSatomsbindingtoAg(I)ions.Pronoatedinacationsstabilizethelayerstructureascounterionsandhydrogenbondswereformedwithinthepronoatedinacationsdimerandbetweenthedimersandthelatticewaters.Crystaldata:Mr=1560.44,triclinic,P-↑1,a=0.76082(1)nm,b=0.9234nm,c=1.85611(4)nm,α=103.0170(10)°,β=93.7780(10)°,γ=97.4080(10)°,V=1.25385(3)nm^3,Z=1,μ(MoKα)=2.650mm^-1,Dc=2.067g·cm^-3,F(000)=758,R1=0.0412,wR2=0.1003.
简介：Li4Ti5O12（LTO）/carbonnanotubes（CNTs）compositematerialissynthesizedbasedonasolid-statemethodbysand-milling,spray-dryingandcalciningat8508CunderN2flow.TheLTO/CNTssampleswith1wt%and3wt%weightratioofCNTsadditionandthepristineLTOsampleareprepared.TherateperformanceandthethermalstabilityofthesesamplesareinvestigatedbasedonLiMn2O4（LMO）/LTOfull-cell.TheresultsshowthattheweightratioofCNTsadditionhasdistincteffectonLTOperformances.ThecompositematerialsofLTOcompositedCNTshavebetterperformanceathigh-rateduetotheintercalationenhancementbyconductivenetworkofCNTs.Atsecond,theoverchargingtemperatureresponseofthecell’ssurfacewith1wt%CNTsadditionisthelowest.Theparticlesizedistributionismeasuredandthemostuniformparticlesareobtainedwith1wt%CNTsaddition.ThistrendcouldexplainthatthemediumquantityofCNTsisoptimaltoimprovetheheatandmasstransferandpreventtheproblemsofcrystallitegrowinginterferenceandaggregationduringthecalcinationprocess.
简介：对化合物[Na_2（H_2O）_（10）][Cu_4（H_2O）_（12）（H_2W_（12）O_（42））]·15H_2O（简称Na_2Cu_4W_（12））进行了体外抗肿瘤活性研究.应用四甲基偶氮唑盐（3-[4,5-dimethylthiazo-2-y]-2,5-diphenyltetrazoliumbromide,MTT）比色法分析Na_2Cu_4W_（12）对人肝癌细胞（HepG2）、人神经母细胞瘤细胞（SHY5Y）增殖抑制活性.采用光学显微镜观察肿瘤细胞的凋亡形态变化,用流式细胞术分析细胞周期和细胞凋亡,计算各期细胞比例及细胞凋亡率.结果表明,Na_2Cu_4W_（12）对HepG2和SHY5Y2种肿瘤细胞增殖半数抑制浓度IC_（50）值分别为5.3和10.2μmol·L~（-1）,且呈剂量依赖性.光学显微镜下处理组细胞出现皱缩、变圆、缩小等形态变化,不同浓度Na_2Cu_4W_（12）处理12h早期凋亡细胞所占的百分比显著增加且呈剂量依赖性.综上所述,Na_2Cu_4W_（12）能够抑制胞瘤细胞增殖,诱导细胞凋亡.
简介：利用室温液相还原、晶种生长的方法,成功的制备了大小形貌均一、性能稳定且具有磁性的Fe3O4@Cu2O复合纳米粒子,并且对制备的Fe3O4@Cu2O纳米粒子进行了光催化性能的研究.在以紫外光为光源的照射下,合成的Fe3O4@Cu2O纳米粒子对有机染料甲基蓝溶液起到很好的降解作用.更重要的是,在外加磁场的作用下,Fe3O4@Cu2O纳米粒子容易回收,具有良好的可循环利用性能.
简介：Thesolidaddofthefirstprotonatedzincoborophosphate,(H3O)Zn(H2O)2BP2O8·H2O(1),wassoventothermallysyn-thesizedbythereactionofZn(NO3)2·6H2OandH3BO3withH3PO4inamixedsolvent,andstructurallycharacterizedbysingle-ystalX-raydiffractionanalysis.ItcrystallizesinthehexagonalP6122,a=0.9604(4)nm,c=1.5297(6)nm,V=1.2218(8)nm^3,Dc=2.921g/cm^3,Z=6,F(000)=1080,μ=3.495mm^-1.Thestmchwefeaturesthatthetetrahedra-te-trahedrahdlcesinterconnectedbyoctahedraandstronghydro-gembondinteractionsformathree-dimensionalframework.Theprotonatedwatermoleculesarelocatedatuniquepositions.othercharacterizationsbyIRandthermalanalysisarealsode-scribed.
简介：在水热条件下,制备了一种基于Keggin型多金属氧酸盐的银配合物[Ag（10）（NCA）4（PW9ⅥW3ⅤO（40））（H2O）4].通过元素分析、红外光谱和X-射线单晶衍射方法确定了该配合物的晶体结构.在合成过程中,3-（2-吡啶羧酸）酰胺-吡嗪配体（L）分解成烟酸NCA.结构分析表明：该化合物属于三斜晶系,P1空间群,晶胞参数a=1.18874（9）nm,b=1.24950nm,c=1.41103（10）nm,α=73.712（2）°,β=66.720（2）°,γ=83.467（2）°,V=1.8479（2）nm3,Z=1,R1=0.0731,ωR2=0.1974.配合物中含有一种六核银亚单元[Ag6（NCA）4]（2＋）,不同亚单元间通过配位水的氧原子连接形成一维双链结构,而一维双链进一步通过Ag—N键连接形成二维层状结构,二维层则通过[PW9ⅥW3ⅤO（40）]（6-）多阴离子形成最终的三维金属有机框架.标题配合物修饰的碳糊电极对H2O2和KNO2还原有好的电催化活性,而且该配合物对降解亚甲基蓝、罗丹明B分子有较高的光催化效率.
简介：Anewsyntheticapproachto1,4,6-tri-O-benzylmyo-inositolwasdescribedonthebasisoftheregioselectivebenzylationof1,2-O-isopropylidene-4,6-di-O-benzylmyo-inositol,subsequentacidhydrolysis,phosphorylationwithtetrabenazylpyrophosphateandappropriatedeprotec-tion.
简介：ThespinelferritesMnFe2O4nanowiresweresynthesizedbyhydrothermalroute,porousMnFe2O4andnanoparticlesmorphologiesweresynthesizedbysol-gelmethodwitheggwhite.Thestructures,morphologies,magneticpropertiesandadsorptionpropertiesoftheseobtainedferriteswithdifferentmorphologieswerestudiedcontrastively.Resultsshowthattheobtainedsamplesexhibitferromagneticproperties.Thisrealizesconvenientmagneticseparationfromsolutionwhentheyareusedinthetreatmentoforganicdyeswastewater.However,thecontrastivestudiesshowthatthesaturationmagnetizations(Ms)ofMnFe2O4withdifferentmorphologiesaredifferentandtheMsfollowstheorder:Ms(porous)
简介：ThecrystalstructureofN-(2,3,4,6-tetra-O-acetyl-β-D-gly-cosyl)-thiocarbamicbenzoylhydrazine(C22H27N3O9S)wasdeterminedbyX-raydiffractonmethod.Thehexopyranosylringadoptsachairconformation.Alltheringsubstituentsareintheequatorialpositions.Theacetoxyl-methylgroupisinsynclinalconformation.TheSatomisinsynperiplanarconformationwhilethebenzoylhydrazinemoietyisanti-periplanar.Thethiocarbamicmoietyisalmostcompanarwiththebenzoylhydrazinegroup.Therearetwointramolecularhydrogenbondsandoneintermolecularhydrogenbondforeachmoleculeinthecrystalstructure.Themoleculesformanetworkstructurethroughintermolecularhydrogenbonds.
简介：利用水热法首次合成了具有两种配位环境Cd原子的新型杂多蓝化合物[NH3（CH2）2NH3]5[Cd（H2O）][CdMo12^vO30（HPO4）6（H2PO4）2]·5H2O．通过元素分析、ICP、TG和X射线单晶衍射确定了其组成，使用IR和EPR进行了结构表征．通过N2吸附脱附测定了比表面积和孔径，为催化研究提供了基础数据．结果表明：该晶体为三斜晶系，P-1，空间群；晶胞参数a=1．2002（2）nm，b=1．4651（3）nm，c=2．1192（4）nm，V=3．5642（12）nm^3，p=83．01（3）°，Z=2，F（000）=2932，R1=0．0300，wR2=0．0716．
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![Crystal Structure and Bioactivity of Complex [Gd（C10H9N<b style='color:red'>2</b><b style='color:red'>O</b><b style='color:red'>4</b>）（C10H8N<b style='color:red'>2</b><b style='color:red'>O</b><b style='color:red'>4</b>）（H<b style='color:red'>2</b><b style='color:red'>O</b>）3]<b style='color:red'>2</b>·phen·<b style='color:red'>4</b>H<b style='color:red'>2</b><b style='color:red'>O</b>](/image/thesis0 "Crystal Structure and Bioactivity of Complex [Gd（C10H9N<b style='color:red'>2</b><b style='color:red'>O</b><b style='color:red'>4</b>）（C10H8N<b style='color:red'>2</b><b style='color:red'>O</b><b style='color:red'>4</b>）（H<b style='color:red'>2</b><b style='color:red'>O</b>）3]<b style='color:red'>2</b>·phen·<b style='color:red'>4</b>H<b style='color:red'>2</b><b style='color:red'>O</b>")
![Vanadium Haloperoxidases Model Compounds： Synthesis, Structural Characterization and Mimic Catalytic Bromination Activity of [VO（C_<b style='color:red'>2</b><b style='color:red'>O</b>_<b style='color:red'>4</b>）（<b style='color:red'>2</b>,<b style='color:red'>2</b>′-bipy）（H_<b style='color:red'>2</b><b style='color:red'>O</b>）]·C_<b style='color:red'>2</b>H_5OH and VO（C_<b style='color:red'>2</b><b style='color:red'>O</b>_<b style='color:red'>4</b>）（phen）（H_<b style='color:red'>2</b><b style='color:red'>O</b>）](/image/thesis2 "Vanadium Haloperoxidases Model Compounds： Synthesis, Structural Characterization and Mimic Catalytic Bromination Activity of [VO（C_<b style='color:red'>2</b><b style='color:red'>O</b>_<b style='color:red'>4</b>）（<b style='color:red'>2</b>,<b style='color:red'>2</b>′-bipy）（H_<b style='color:red'>2</b><b style='color:red'>O</b>）]·C_<b style='color:red'>2</b>H_5OH and VO（C_<b style='color:red'>2</b><b style='color:red'>O</b>_<b style='color:red'>4</b>）（phen）（H_<b style='color:red'>2</b><b style='color:red'>O</b>）")
![Syntheses, Crystal Structures and Characterization of Two Zeotype Crystals of K<b style='color:red'>4</b>[Cr30（H<b style='color:red'>2</b><b style='color:red'>O</b>） 3（OOCH） 6] <b style='color:red'>2</b>[ P<b style='color:red'>2</b>W18<b style='color:red'>O</b>62]· 9.5H<b style='color:red'>2</b> <b style='color:red'>O</b> and K<b style='color:red'>4</b>[ Cr3<b style='color:red'>O</b>（ H<b style='color:red'>2</b><b style='color:red'>O</b>）3（ OOCH）6 ]<b style='color:red'>2</b>[ H3 P<b style='color:red'>2</b> W17Co（H<b style='color:red'>2</b><b style='color:red'>O</b>） <b style='color:red'>O</b>61]· 20H<b style='color:red'>2</b><b style='color:red'>O</b>](/image/thesis4 "Syntheses, Crystal Structures and Characterization of Two Zeotype Crystals of K<b style='color:red'>4</b>[Cr30（H<b style='color:red'>2</b><b style='color:red'>O</b>） 3（OOCH） 6] <b style='color:red'>2</b>[ P<b style='color:red'>2</b>W18<b style='color:red'>O</b>62]· 9.5H<b style='color:red'>2</b> <b style='color:red'>O</b> and K<b style='color:red'>4</b>[ Cr3<b style='color:red'>O</b>（ H<b style='color:red'>2</b><b style='color:red'>O</b>）3（ OOCH）6 ]<b style='color:red'>2</b>[ H3 P<b style='color:red'>2</b> W17Co（H<b style='color:red'>2</b><b style='color:red'>O</b>） <b style='color:red'>O</b>61]· 20H<b style='color:red'>2</b><b style='color:red'>O</b>")
![[Mn3Ⅱ(CH3COO)6(H<b style='color:red'>2</b><b style='color:red'>O</b>)<b style='color:red'>4</b>·(H<b style='color:red'>2</b><b style='color:red'>O</b>)<b style='color:red'>2</b>]n的合成、结构与磁性研究](/image/thesis8 "[Mn3Ⅱ(CH3COO)6(H<b style='color:red'>2</b><b style='color:red'>O</b>)<b style='color:red'>4</b>·(H<b style='color:red'>2</b><b style='color:red'>O</b>)<b style='color:red'>2</b>]n的合成、结构与磁性研究")
![Synthesis and Crystal Structure of a Two-dimensional Silver（Ⅰ）-Iron（Ⅲ） Heteronuclear Coordination Polymer： {[Ag<b style='color:red'>4</b>Fe<b style='color:red'>2</b>（SCN）12（H<b style='color:red'>2</b><b style='color:red'>O</b>）<b style='color:red'>2</b>] [（inaH）<b style='color:red'>2</b>（H<b style='color:red'>2</b><b style='color:red'>O</b>）<b style='color:red'>2</b>]}n](/image/thesis9 "Synthesis and Crystal Structure of a Two-dimensional Silver（Ⅰ）-Iron（Ⅲ） Heteronuclear Coordination Polymer： {[Ag<b style='color:red'>4</b>Fe<b style='color:red'>2</b>（SCN）12（H<b style='color:red'>2</b><b style='color:red'>O</b>）<b style='color:red'>2</b>] [（inaH）<b style='color:red'>2</b>（H<b style='color:red'>2</b><b style='color:red'>O</b>）<b style='color:red'>2</b>]}n")
![新型仲钨酸盐-B化合物[Na_<b style='color:red'>2</b>（H_<b style='color:red'>2</b><b style='color:red'>O</b>）_（10）][Cu_<b style='color:red'>4</b>（H_<b style='color:red'>2</b><b style='color:red'>O</b>）_（12）（H_<b style='color:red'>2</b>W_（12）<b style='color:red'>O</b>_（42））]·15H_<b style='color:red'>2</b><b style='color:red'>O</b>体外抗肿瘤活性研究](/image/thesis11 "新型仲钨酸盐-B化合物[Na_<b style='color:red'>2</b>（H_<b style='color:red'>2</b><b style='color:red'>O</b>）_（10）][Cu_<b style='color:red'>4</b>（H_<b style='color:red'>2</b><b style='color:red'>O</b>）_（12）（H_<b style='color:red'>2</b>W_（12）<b style='color:red'>O</b>_（42））]·15H_<b style='color:red'>2</b><b style='color:red'>O</b>体外抗肿瘤活性研究")
![Mo-Fe-S原子簇化合物[（MoS<b style='color:red'>4</b>）<b style='color:red'>2</b>FeL]3-（L:<b style='color:red'>O</b><b style='color:red'>2</b>CH3CN,<b style='color:red'>O</b><b style='color:red'>2</b>,<b style='color:red'>O</b>）的氧化还原活性](/image/thesis14 "Mo-Fe-S原子簇化合物[（MoS<b style='color:red'>4</b>）<b style='color:red'>2</b>FeL]3-（L:<b style='color:red'>O</b><b style='color:red'>2</b>CH3CN,<b style='color:red'>O</b><b style='color:red'>2</b>,<b style='color:red'>O</b>）的氧化还原活性")
![银配合物[Ag（10）（NCA）<b style='color:red'>4</b>（PW9ⅥW3Ⅴ<b style='color:red'>O</b>（40））（H<b style='color:red'>2</b><b style='color:red'>O</b>）<b style='color:red'>4</b>]的合成、结构与性质](/image/thesis15 "银配合物[Ag（10）（NCA）<b style='color:red'>4</b>（PW9ⅥW3Ⅴ<b style='color:red'>O</b>（40））（H<b style='color:red'>2</b><b style='color:red'>O</b>）<b style='color:red'>4</b>]的合成、结构与性质")
![新型杂多蓝化合物[NH3（CH<b style='color:red'>2</b>）<b style='color:red'>2</b>NH3]5[Cd（H<b style='color:red'>2</b><b style='color:red'>O</b>）][CdMo12^VO30（HPO<b style='color:red'>4</b>）6（H<b style='color:red'>2</b>PO<b style='color:red'>4</b>）<b style='color:red'>2</b>]·5H<b style='color:red'>2</b><b style='color:red'>O</b>的合成与晶体结构](/image/thesis19 "新型杂多蓝化合物[NH3（CH<b style='color:red'>2</b>）<b style='color:red'>2</b>NH3]5[Cd（H<b style='color:red'>2</b><b style='color:red'>O</b>）][CdMo12^VO30（HPO<b style='color:red'>4</b>）6（H<b style='color:red'>2</b>PO<b style='color:red'>4</b>）<b style='color:red'>2</b>]·5H<b style='color:red'>2</b><b style='color:red'>O</b>的合成与晶体结构")