简介：利用角分辨紫外光电子谱对乙烯和乙炔气体在Ru(1010)表面的吸附及与K的共吸附的研究结果表明：当衬底温度超过200K，乙烯即发生脱氢反应，σCH和σCC能级均向高结合能方向移动。在室温下，σCH和σCC能级位置与乙炔在Ru(1010）表面的吸附时的分子能级完全一致。乙烯发生脱氢反应后的主要产物为乙炔。衬底温度从120K到室温，Ru(1010）表面上乙炔的σCH和σCC能级均未发现变化。室温下乙炔仍然可以在Ru(1010）表面以分子状态稳定吸附。在有K的Ru(1010）表面上，室温时σCC谱峰几乎。碱金属K的存在促进了乙炔的分解。
简介：本文报道了Ｃ６Ｈ１２Ｏ６（ＮＨ４）２ＳＯ４Ｃ２Ｈ５ＯＨＨ２Ｏ（Ｃ２Ｈ５ＯＨ／Ｈ２Ｏ＝０．９０）体系在３５℃时体系溶解度和饱和溶液的折光指数，并绘出了体系相应的溶度图和饱和溶液的折光指数曲线图。结果表明：所研究的体系为四元体系Ｃ６Ｈ１２Ｏ６（ＮＨ４）２ＳＯ４Ｃ２Ｈ５ＯＨＨ２Ｏ中的一部分。当溶液中肌醇饱和时，溶度曲线落在约５０％的等醇水比面上。当（ＮＨ４）２ＳＯ４在溶液中达到饱和时，出现共饱点。其组成为（ＮＨ４）２ＳＯ４：２１０％，Ｃ６Ｈ１２Ｏ６：２．０８％，Ｃ２Ｈ５ＯＨ：４４７５％。同时出现分层，在富醇相随着乙醇浓度的增加，出现肌醇与硫酸铵共饱线。在富水相硫酸铵饱和溶度曲线落在约５％乙醇的等醇水比面上，折光指数曲线由三支组成，其中两条分别与Ｃ６Ｈ１２Ｏ６·Ｈ２Ｏ和（ＮＨ４）２ＳＯ４相对应，另外一条线与（ＮＨ４）２ＳＯ４和Ｃ６Ｈ１２Ｏ６·Ｈ２Ｏ的共饱线相对应
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：Sodiumparanitrophenolatedihydrate(NPNa·2H2O)isanexcellentsemiorganicnonlinearoptical(NLO)material,crystallizesbothinwaterandmethanolwithhighdegreeoftransparency.Goodopticalqualitysinglecrystalsofdimensionupto18mmx6mmx3mmareobtainedbyisothermalsolventevaporationtechnique.Thesolubilityofthecrystalindifferentsolventswasmeasuredgravimetrically.ThesinglecrystalsofNPNa·2H2Oshowvariationinphysicalpropertiesandgrowthrateindifferentsolvents.Methanolorethanolsolutionyieldscrystalsofbipyramidalshapewithclearmorphology.However,methanolgrowncrystalisexhibitingimprovedhardnessparametersandpossessesexcellentthermalstabilityascomparedtowatergrowncrystals.TheeffectsofsolventonhardnessparameteralongwiththermalandopticalpropertiesofNPNa·2H2Owasrevealedinthispaper.
简介：Thispaperreportstwolanthanidecomplexesofformula（C9H7）Ln（C8H8）·（THF）2whereLnisProrNd,C9H7isindenyl,andC8H8iscyclooctatetraene（COT）.ThecomplexeswerepreparedbythereactionofLnCl3withK（C9H7）andK2（C8H8）inTHF.（C9H7）Pr（C8H8）·（THF）2crystallizesinTHFat-15℃inthemonoclinicspacegroupP21:withunitcelldimensionsa=8.446（0）,b=10.083（2）,c=13.407（3）,β=105.48（1）°,V=1100.43（35）3,Dc=1.52g/cm3andZ=2.ThefinalRvalueis0.033,Rwvalueis0.030,respectively.In（C9H7）Pr（C8H8）·（THF）2afive-memberedringcentroidofC9H7,theC8H8ringcentroidandthetwooxygenatomsfromthetwoTHFmoleculesformadistortedtetrahedralgeometryaroundthemetal.
简介：Anovelsupportedliquidphasefilmcatalyst:SupportedPdCl2-(n-C4H9)4N+Cl-moltensaltswasfoundtobeaneffectivecatalystwithgoodstabilityforselectivehydrodechlorinationofCCl2F2(CFC-12)toitsalternativesCH2F2andCHClF2.AdditionofCoCl2,GaCl3andCuCl2toPdCl2-(n-C4H9)4N+Cl-modifiesthecatalyticperformanceofsupportedmoltensalts.
简介：BackgroundTaxifolin(Tax)isanessentialnaturalantioxidant.MultiplestudieshaveshownthatTaxcanprotectcardiomyocytesfromischemia-reperfusioninjury.However,theunderlyingmechanismisstillunclear.MethodsH9C2cellswererandomlydividedintocontrol,H_2O_2group,Taxpretreatmentgroup(Tax+H_2O_2);Taxeffectgroup.CellactivitywasdetectedbyCCK-8andtheintracellularstructurewasobservedbytransmissionelectronmicroscopy.AutophagywasdeterminebyWesternblottinganalysisofBeclin-1,Bcl-2andPKC.ResultsTaxpretreatmentsignificantlyincreasedanti-apoptoticproteinBcl-2andautophagyproteinBeclin-1.ExpressionofPKCwasinhibitedbyTax.ConclusionsTaxpretreatmentcouldprotectH9C2cellsagainstH_2O_2-induceddamagethroughtheBcl-2andautophagypathways.
简介：合成了一种未见报道的标题化合物（（C5N2H6）3（C5N2H7）3[（PO4）Mo12O36]·2H2O,Mr=2403.00）并得到单晶,晶体衍射实验发现其属于单斜晶系,P2（1）/n空间群,晶体学参数：a=13.316（3）,b=22.414（5）,c=20.063（4）,α=90.00（4）°,β=100.743（3）°,γ=90.00°,V=5883（2）3,Z=4,Dc=2.713Mg/m3,μ（MoKα）=2.608mm-1,F000=4604,最终R=0.0596,wR=0.1345,GoF=1.042.配体由由簇阴离子[（PO4）Mo12O36]3-之间通过端基氧与2-氨基吡啶形成氢键而相互连接,中间填充了一些水分子及2-氨基吡啶.
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：Ionothermalsynthesiswasusedtoprepareanovelaminoacidcontaininghybridzincophosphatemonomer,[Zn(HPO4)(H2PO4)][C6H10N3O2](denotedasZnPO-CJ58).Theinorganicframeworkof[Zn(HPO4)(H2PO4)]·[C6H10N3O2]consistsof4-memberedringsformedbyZnO3OHisandPO2(OH)2tetrahedra.TheHPO4andaminoacidmoietieshangontheZncenter.Suchaframeworkisstabilizedbyextensivemultipointhydrogenbondsinvolvingthephosphateunitsandhistidinemoleculestoformapseudo-3Dsupramolecularstructure.ItisnoteworthythatZnPO-CJ58isthefirstzincphosphateclusterwithaminoacidactingastheligand.Itexhibitsphotoluminescenceexcitedatawavelengthof220nm.Interestingly,ZnPO-CJ58cantransformintoalayeredstructure(C6H10N3O2)Zn2·(HPO4)(PO4)·H2O(ZnPO-CJ36)throughfurtherreactingwithwaterorzincacetatedihydrateinwaterat85℃for1h.Thisworkwillbehelpfulforthesynthesisofcrystallineinorganic-organichybridmaterialswithbiofunctionalmolecules.
简介：本文就n-C4H9-Br制备实验的反应过程以及分别用KBr和NaBr制备n-C4H9-Br时出现的不同实验现象和结果进行了探讨。提出KBr的溶解速率比NaBr的溶解速率小是产生不同实验现象和结果的原因，并通过用块状NaBr进行对比实验得到验证。用块状的NaBr有利于提高n-C4H9-Br的产率。
简介：Themononuclearcomplex,[NtCl2(trzCHzCHzCOPh)4]·6H2O(trz=1,2,4-triazole),wassynthesizedanditsstructurewasdeterminedbysinglecrystalX-raydetermination.Itcrystallizesinthemonoclinicsystem,spacegroupP21/c,withlatticepa-rameters:a=0.80391(2)nm,b=1.06215(2)nm,c=2.90133(2)nm,β=94.792(1)°andZ=2.EachnickelatomiscoordinatedbyfourNatomsoftriazolefromfourβ-(1,2,4-IriHole-1-yl)propiophenoneligandsandtwochlorideanionsinarrangementwithoctahedralcoordinationgeometry.Inadditiontothecoordinatingnickelcomplex,therearesixunco-ordinatedwatermolecules.TheNi—Ndistanceis0.24865(8)nmandtheNi—Ndistaneesareintherangeof0.2072(2)to0.2099(2)nm,respectively.Inthesolidstate,theUtiecom-poundformsthreedimensionalnetworkstructurethroughhy-drogenbonds.Theintermolecularhydrogenbondsconnectthe[NiCl2(C2H2N3CH2CH2COPh)4]andH2Omoieties.Thedeepgreencrystalswerealsoexaminedbyelementalanalysis,FT-IRandUVspectra,whichareinagreementwiththestructuralda-ta.
简介：采用铜（Ⅱ）盐和3,5-二氯水杨醛缩丝氨酸以及4,4′-联吡啶在乙醇水溶液中合成了具有二维层状的配位聚合物.通过元素分析、红外光谱对该配位聚合物进行了表征,并利用X射线单晶衍射仪对其结构进行了鉴定.晶体结构表明,该标题配合物属三斜方晶系,空间群C2/c,晶胞参数为a=2.711（3）nm,b=2.711（3）nm,c=4.977（5）nm;α=90.00°,β=90.00°,γ=120.00°,V=3.1678nm^3,Z=18,Dc=1.173g·cm^-3,F（000）=11448,μ=0.807mm-1,R1=0.0788,wR2=0.1872.
简介：含有ONO给体原子的N-邻甲氧基苯甲酰基水杨酰肼配体与[VO(acac)2]在乙醇中反应得到钒(V)酰配合物VO[(C15H12N2O4)(OC2H5)].标题化合物晶体属三斜晶系,空间群Pī,晶胞参数:a＝0.89411(5)nm,b＝1.0063(2)nm,c＝1.0392(2)nm,α＝110.171(7)°,β＝95.219(3)°,γ＝93.822(2)°;V＝0.8692(2)nm3,Z＝2,R1＝0.0513,wR＝0.1532.研究结果表明:钒原子具有扭曲的四方锥配位构型,钒酰氧原子处在锥顶位置,配体的3个给体原子与溶剂分子形成锥底平面.
简介：通过电化学分析与测试，研究B4C体积分数分别为20%、30%、40%的B4C/Al基复合材料及其基体合金（6061铝合金）在不同浓度及不同温度的硫酸溶液中的腐蚀行为。由动态极化曲线和阻抗谱得到相应的电化学参数，并利用阻抗分析软件对该复合材料和基体合金腐蚀过程的等效电路进行模拟，分析腐蚀机理，通过Arrhenius方程计算腐蚀过程中B4C/Al基复合材料与6061铝合金的反应活化能，并分析两者的焓变与熵变，对腐蚀前后2种材料界面的微观结构进行观察。结果表明：B4C/Al基复合材料在硫酸溶液中的腐蚀速率随B4C颗粒含量增加而增大，基体铝合金在硫酸中的耐腐蚀性能高于B4C/Al基复合材料。B4C/Al基复合材料和基体铝合金在硫酸中的腐蚀速率都随硫酸溶液浓度增加而增大；当溶液温度升高时，二者的腐蚀速率都快速增加。B4C/Al基复合材料和Al基体合金在硫酸溶液中的腐蚀都表现为明显的点蚀。铝基体材料在硫酸溶液中的反应活化能大于B4C/Al基复合材料，计算所得活化焓与活化熵的值均表明复合材料的腐蚀反应比基体合金更容易进行，因而遭受腐蚀更严重。
简介：ＳＹＮＴＨＥＳＩＳＯＦ３－ＡＲＹＬ－１（２Ｈ，４Ｈ）ＡＣＲＩＤＯＮＥＳＡＮＤＴＨＥＩＲＤＥＲＩＶＡＴＩＶＥＳ￥ＲｏｎｇＹＩＮ；ＧｕａｎｇＦａｎＨＡＮ；ＹｕＴｉａｎＬＩ（ＤｅｐａｒｔｍｅｎｔｏｆＭｅｄｉｃａｌＬａｂｏｒａｔｏｒｙ，ＪｉｌｉｎＭｅｄｉｅａ...
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![Crystal Structure and Bioactivity of Complex [Gd（<b style='color:red'>C</b>10<b style='color:red'>H</b>9N<b style='color:red'>2</b>O<b style='color:red'>4</b>）（<b style='color:red'>C</b>10<b style='color:red'>H</b>8N<b style='color:red'>2</b>O<b style='color:red'>4</b>）（<b style='color:red'>H</b><b style='color:red'>2</b>O）3]<b style='color:red'>2</b>·phen·<b style='color:red'>4</b><b style='color:red'>H</b><b style='color:red'>2</b>O](/image/thesis1 "Crystal Structure and Bioactivity of Complex [Gd（<b style='color:red'>C</b>10<b style='color:red'>H</b>9N<b style='color:red'>2</b>O<b style='color:red'>4</b>）（<b style='color:red'>C</b>10<b style='color:red'>H</b>8N<b style='color:red'>2</b>O<b style='color:red'>4</b>）（<b style='color:red'>H</b><b style='color:red'>2</b>O）3]<b style='color:red'>2</b>·phen·<b style='color:red'>4</b><b style='color:red'>H</b><b style='color:red'>2</b>O")
![Vanadium Haloperoxidases Model Compounds： Synthesis, Structural Characterization and Mimic Catalytic Bromination Activity of [VO（<b style='color:red'>C</b>_<b style='color:red'>2</b>O_<b style='color:red'>4</b>）（<b style='color:red'>2</b>,<b style='color:red'>2</b>′-bipy）（<b style='color:red'>H</b>_<b style='color:red'>2</b>O）]·<b style='color:red'>C</b>_<b style='color:red'>2</b><b style='color:red'>H</b>_5OH and VO（<b style='color:red'>C</b>_<b style='color:red'>2</b>O_<b style='color:red'>4</b>）（phen）（<b style='color:red'>H</b>_<b style='color:red'>2</b>O）](/image/thesis3 "Vanadium Haloperoxidases Model Compounds： Synthesis, Structural Characterization and Mimic Catalytic Bromination Activity of [VO（<b style='color:red'>C</b>_<b style='color:red'>2</b>O_<b style='color:red'>4</b>）（<b style='color:red'>2</b>,<b style='color:red'>2</b>′-bipy）（<b style='color:red'>H</b>_<b style='color:red'>2</b>O）]·<b style='color:red'>C</b>_<b style='color:red'>2</b><b style='color:red'>H</b>_5OH and VO（<b style='color:red'>C</b>_<b style='color:red'>2</b>O_<b style='color:red'>4</b>）（phen）（<b style='color:red'>H</b>_<b style='color:red'>2</b>O）")
![新型杂多酸（<b style='color:red'>C</b>5N<b style='color:red'>2</b><b style='color:red'>H</b>6）3（<b style='color:red'>C</b>5N<b style='color:red'>2</b><b style='color:red'>H</b>7）3[（PO<b style='color:red'>4</b>）Mo12O36]·<b style='color:red'>2</b><b style='color:red'>H</b><b style='color:red'>2</b>O的水热合成与晶体结构](/image/thesis9 "新型杂多酸（<b style='color:red'>C</b>5N<b style='color:red'>2</b><b style='color:red'>H</b>6）3（<b style='color:red'>C</b>5N<b style='color:red'>2</b><b style='color:red'>H</b>7）3[（PO<b style='color:red'>4</b>）Mo12O36]·<b style='color:red'>2</b><b style='color:red'>H</b><b style='color:red'>2</b>O的水热合成与晶体结构")
![配合物K3[Al（<b style='color:red'>C</b><b style='color:red'>2</b>O<b style='color:red'>4</b>）3]·3<b style='color:red'>H</b><b style='color:red'>2</b>O与K3[Cr（<b style='color:red'>C</b><b style='color:red'>2</b>O<b style='color:red'>4</b>）3]·3<b style='color:red'>H</b><b style='color:red'>2</b>O的热分解反应及其动力学研究](/image/thesis11 "配合物K3[Al（<b style='color:red'>C</b><b style='color:red'>2</b>O<b style='color:red'>4</b>）3]·3<b style='color:red'>H</b><b style='color:red'>2</b>O与K3[Cr（<b style='color:red'>C</b><b style='color:red'>2</b>O<b style='color:red'>4</b>）3]·3<b style='color:red'>H</b><b style='color:red'>2</b>O的热分解反应及其动力学研究")
![Ionothermal Synthesis and Phase Transformation of Organic-inorganic Hybrid Neutral Zincophosphate Cluster [Zn（HPO<b style='color:red'>4</b>）（<b style='color:red'>H</b><b style='color:red'>2</b>PO<b style='color:red'>4</b>）][<b style='color:red'>C</b>6<b style='color:red'>H</b>（10）N3O<b style='color:red'>2</b>]](/image/thesis12 "Ionothermal Synthesis and Phase Transformation of Organic-inorganic Hybrid Neutral Zincophosphate Cluster [Zn（HPO<b style='color:red'>4</b>）（<b style='color:red'>H</b><b style='color:red'>2</b>PO<b style='color:red'>4</b>）][<b style='color:red'>C</b>6<b style='color:red'>H</b>（10）N3O<b style='color:red'>2</b>]")
![Structure of Tetra[β-（1,<b style='color:red'>2</b>,4-triazole-l-yl） propiophenone ] Dichloro NiCkel（Ⅱ） Solvate Hexahydrate Complex：[NiCl<b style='color:red'>2</b> （ <b style='color:red'>C</b><b style='color:red'>2</b><b style='color:red'>H</b><b style='color:red'>2</b>N3CH<b style='color:red'>2</b>CH<b style='color:red'>2</b>-COPh） <b style='color:red'>4</b> ]·6<b style='color:red'>H</b><b style='color:red'>2</b>O](/image/thesis14 "Structure of Tetra[β-（1,<b style='color:red'>2</b>,4-triazole-l-yl） propiophenone ] Dichloro NiCkel（Ⅱ） Solvate Hexahydrate Complex：[NiCl<b style='color:red'>2</b> （ <b style='color:red'>C</b><b style='color:red'>2</b><b style='color:red'>H</b><b style='color:red'>2</b>N3CH<b style='color:red'>2</b>CH<b style='color:red'>2</b>-COPh） <b style='color:red'>4</b> ]·6<b style='color:red'>H</b><b style='color:red'>2</b>O")
![一个新的二维配位聚合物：{Cu<b style='color:red'>2</b>[<b style='color:red'>C</b>10<b style='color:red'>H</b>8Cl<b style='color:red'>2</b>NO<b style='color:red'>4</b>]<b style='color:red'>2</b>[<b style='color:red'>C</b>10<b style='color:red'>H</b>8N<b style='color:red'>2</b>]3}n的合成及其晶体结构](/image/thesis15 "一个新的二维配位聚合物：{Cu<b style='color:red'>2</b>[<b style='color:red'>C</b>10<b style='color:red'>H</b>8Cl<b style='color:red'>2</b>NO<b style='color:red'>4</b>]<b style='color:red'>2</b>[<b style='color:red'>C</b>10<b style='color:red'>H</b>8N<b style='color:red'>2</b>]3}n的合成及其晶体结构")
![配合物VO[（<b style='color:red'>C</b>15<b style='color:red'>H</b>12N<b style='color:red'>2</b>O<b style='color:red'>4</b>）（OC<b style='color:red'>2</b><b style='color:red'>H</b>5）]的合成晶体结构和氧化还原性质](/image/thesis16 "配合物VO[（<b style='color:red'>C</b>15<b style='color:red'>H</b>12N<b style='color:red'>2</b>O<b style='color:red'>4</b>）（OC<b style='color:red'>2</b><b style='color:red'>H</b>5）]的合成晶体结构和氧化还原性质")
