简介：Theneworganic-inorganiccompound,[C_6H_7N_2O_2]_3TeCl_5·2Clwassynthesizedanditsstructurewasdeterminedatroomtemperatureinthetriclinicsystem(P~-1)withthefollowingparameters:a=10.5330(11)?,b=10.6663(11)?,c=15.9751(16)?,α=82.090(2)°,β=71.193(2)°,γ=68.284(2)°andZ=2.ThefinalcycleofrefinementledtoR=0.057andRw=0.149.ThecrystalstructurewasstabilizedbyanextensivenetworkofN--H···Clandnon-classicalC--H···Clhydrogenbondsbetweenthecationandtheanionicgroup.Severalthermalanalysistechniquessuchasthermogravimetricanalysis,differentialscanningcalorimetricanalysisandevolvedgasanalysiswereused.Weusedisoconversionalkineticsmethodstodeterminethekineticsparameters.Weobservethatthedecompositionof[C_6H_7N_2O_2]_3TeCl_5·2Clentailstheformationhydrochloricacidofnitroanilineasvolatiles.Theinfraredspectrawererecordedinthe4000–400cm~(-1)frequencyregion.TheRamanspectrawererecordedintheexternalregionoftheanionicsublatticevibration50–1500cm~(-1).TheopticalbandgapwascalculatedfromtheUV-VisabsorbancespectrausingclassicalTaucrelationwhichwasfoundtobe3.12and3.67eV.

简介：Quasiclassicaltrajectorycalculation(QCT)isusedfrequentlyforstudyingcollisionalenergytransferbetweenhighlyvibrationallyexcitedmoleculesandbathgases.Inthispaper,theQCToftheenergytransferbetweenhighlyvibrationallyexcitedC6F6andN2,O2andgroundstateC6F6wereperformed.TheresultsindicatethathighlyvibrationallyexcitedC6F6transferredvibrationalenergytovibrationaldistributionofN2,O2andgroundstateC6F6,sotheyareV-Venergytransfer.EspeciallyitismainlyV-VresonanceenergytransferbetweenexcitedC6F6andgroundstateC6F6,excitedC6F6transfersmorevibrationalenergytogroundstateC6F6thantoN2andO2.ThevaluesofQCT,-〈△Evib〉ofexcitedC6F6aresmallerthanthoseofexperiments.

简介：Usingamicrowavegenerator,chlorinedilutedbyheliumwasdissociatedtochlorineatomsthatsubse-quentlyreactedwithhydrogenazidetoproducetheexcitedstatesofNCl(a1△).Meanwhile,moleculariodinewithcarriergasofheliumreactedwithatomicchlorinetoproduceatomiciodinewhichthenwaspumpedtoexcitedstateofI(2P1/2)byanenergytransferreactionfromNCl(a1△).Inthispaper,thechangesofNCl(a1△)andNCl(bi∑)emissionintensityispresentedwhenI2/HeisintroducedintothestreamofCl/Cl2/He/HN3/NCl(a1△)/NCl(b1∑).ThedependencesofatomiciodineI(2P1/2)onflowratesofgaseswerealsoinvestigated.TheoptimumparametersforI(2P1/2)productionaregiven.

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简介：本文报道了Ｃ６Ｈ１２Ｏ６（ＮＨ４）２ＳＯ４Ｃ２Ｈ５ＯＨＨ２Ｏ（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）２ＳＯ４Ｃ２Ｈ５ＯＨＨ２Ｏ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）２ＳＯ４：２１０％，Ｃ６Ｈ１２Ｏ６：２．０８％，Ｃ２Ｈ５ＯＨ：４４７５％。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：Eu2+andDy3+codoped(Ca,Sr)7(SiO3)6Cl2yellowphosphorsweresuccessfullysynthesizedbyself-fluxmethod.Thestructure,morphologyandphotoluminescencepropertieswereinvestigatedbyX-raydiffraction(XRD),scanningelectronmicroscopy(SEM)andphotoluminescencespectra.Theas-preparedphosphorshowedabroademissionspectrumcenteredat550nmforEu2+single-dopedphosphor,whilelocatedat548–544nmfortheEu2+,Dy3+codopedsamplesunderexcitationat380nmlight.TheemissionintensitywasgreatlyimprovedwhenDy3+wasdopedintothe(Ca,Sr)7(SiO3)6Cl2:Eu2+system.Thecomposition-optimizedsamplewith3mol.%ofDy3+andconstant10mol.%ofEu2+exhibiteda220%PLenhancementcomparedtothephosphorwith10mol.%Eu2+single-doped.Meanwhile,itwasfoundthatthequantumefficiencyofphosphornamely(Ca,Sr)7(SiO3)6Cl2:3mol.%Dy3+,10mol.%Eu2+couldgetupto24.6%.Thesynthesizedyellow-emitting(Ca,Sr)7(SiO3)6Cl2:Dy3+,Eu2+isapromisingcandidateashigh-efficiencyyellowphosphorforNUV-excitedwhiteLEDs.

简介：研究表明含氟气体的性质决定了原子氟（F）的转化效率,通常在CxFy气体中x的值越大,氟（F）的转化效率也就会越高。所以C3F8（八氟丙烷）比C2F6（乙氟烷）具有更高的利用效率,更少的PFC（全氟化物）的排放。文章主要研究在以四乙氧基硅烷（TOES）为基础的离子增强化学气相沉积（PlasmaEnhancedChemicalVaporDeposition,PECVD）的清洗制程中,利用分解效率高的C3F8气体取代C2F6气体。通过实验设计（DesignOfExperiment,DOE）,调整腔体压力、射频（RF）功率、气体流量等参数,最终得到最优化的新清洗配方。应用到实际的量产中,有效地降低了成本,减少了PFC的排放。

简介：Anovelsupportedliquidphasefilmcatalyst:SupportedPdCl2-(n-C4H9)4N+Cl-moltensaltswasfoundtobeaneffectivecatalystwithgoodstabilityforselectivehydrodechlorinationofCCl2F2(CFC-12)toitsalternativesCH2F2andCHClF2.AdditionofCoCl2,GaCl3andCuCl2toPdCl2-(n-C4H9)4N+Cl-modifiesthecatalyticperformanceofsupportedmoltensalts.

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简介：Thenovelcomplex[K(18-C-6)]2[Cd(mnt)2][18-C-6-18-crown-6,nmt=1,2-dicyanoethene-1,2-dithiolate,C2S2-(CN)2^2-]wassynthesizedandcharacterizedbyelementalanalysis,IRspectrumandX-raydiffractionanalysis.Thecomplexdisplaystwo-dimensionalnetworkstructureof[K(18-C-6)]complexsegmentsand[Cd(nmt)2]complexsegmentbridgedbyS-K-S,S-K-NandN-K-Ninteractionsbetweenadjacent[K(18-C-6)]and[Cd(mnt)2]units.

简介：C2C的模式在中国完成了培养用户网络购物习惯的使命,而最终要盈利却不得不绕道B2C。4月17日,易趣网副总裁常琳的晚餐时间是和易趣新平台上的个人大卖家们一起度过的。席间,那些自eBay易趣时代就栖身此处的大卖家们不断地向常琳提出各种吸引卖家进驻的建议。

简介：简要介绍了EGM2008和EIGEN-6C2两种超高阶重力场模型,给出了高程异常模型计算的详细过程,并基于两种重力场模型建立内蒙古地区似大地水准面模型,用空点法和外符合法进行精度分析比较。结果表明,可以用空点法取代外符合法进行精度评定。在内蒙古地区,EIGEN-6C2模型比EGM2008模型的精度提高了3cm。

简介：在未采取预电离措施的情况下，研究了纯sf6气体及sf6/h29sf6/c2h6两种混合气体激光介质脉冲放电特性。实验结果表明，无预电离时SF68其混合气体介质可以实现自引发体放电，气体介质体放电维持电压主要由SF,;含量决定，C2H6具有抑制电弧的作用，可以有效延长体放电维持时间。分析认为，sf66体高折合场强E/P导致的放电通道电流密度受限和高电负度■引起的放电通道中负离子分解产生二次电子，是介质实现自引发体放电的重要机理。

简介：ThefirststarsintheearlyUniversewereformedabout400millionyearsafterthebigbang.VerificationoftheexistenceofthesestarsisimportantforourunderstandingoftheevolutionoftheUniverse[1].IthasbeenpredictedthatforPopulation-IIIstellarproductionyields,theabundancesofodd-Zelementsareremarkablydeficientcomparedtotheiradjacenteven-Zelements[2].Astronomersaresearchingforlong-lived,lowmassstarswiththeuniquenucleosyntheticpatternmatchingthepredictedyields[3].

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：摘要阐述了科陆CL302C的工作原理、系统逻辑结构及数据录入、数据管理及其应用

简介：在从高度掉落以后介绍给我们的35岁女性。她抱怨了颈疼痛和完全的四肢瘫痪并且作为有C6-C7的spondyloptosis被诊断。骨胳的拖拉在她上被执行。显示出的CT扫描C5，C6，和C7折断脊椎的身体。病人经历了前面的途径有从ipsilateral的前面的颈的锁住板和神气grafting的部分corpectomy肠骨的冠。Intraoperatively，圆盘完全被破裂，有硬脑膜的眼泪和脑髓的液体漏缝，这被发现。她的手术后的时期由脑髓的液体收集是复杂的，以后的乐器学没由于差的一般条件被执行。她没在最后后续有神经恢复。Spondyloptosis是有三列ligamentous混乱的严重、高度不稳定的损害并且可能复杂，与硬脑膜的眼泪，作为在我们的情况中。这些案例的管理与复杂并发症是充满的，并且为神经恢复的预后是忧郁的。

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简介：IntheinterlayerexpansionofthelayeredzeoliteprecursorCOK-5,aSn,salt,bis(2,4-pentanedionate)-dichlorotin[Sn(acac)2Cl2],insteadofasilylatingagentwasusedtolinkthelayersat180°C.Theobtainedmaterial,whichisdesignedasSn-COE-5,showsashiftofthefirstXRDreflection,whichisverysimilartothatofCOK-5interlayerexpandedwithdichlorodimethylsilane(DCDMS),indicatinganincreaseininterlayerdistance.X-raydiffraction(XRD),N2sorptionisotherms,inductivelycoupledplasma(ICP),andX-rayphotoelectronspectroscopy(XPS)supporttheincorporationofisolatedSnsitesinthesample.Intheconversionofglucosetolevulinicacid,Sn-COE-5exhibitsmuchhigheractivitythanCOK-5,whichisduetothepresenceofLewisacidicsitesintheSn-COE-5.