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简介:AnovelSchiffbase(TAMET)wassynthesizedbythecondensationoftetraglycolaldehydewithmethionineandamildoxidantCrO3·(C5H5N)2wasselectedforthereaction.SevennewrareearthcomplexeswiththisSchiffbasehavebeensynthesizedandcharacterizedbyelementalanalysis,TG-DTA,molarconductivity,magneticsusceptibilityandIR,especially1HNMRspectra.Informationwasobtainedfromreflectancespectraandthecoordinationofsulfuratomtorareearthswasdiscussed.TheexperimentalresultsshowthatthesecompoundshavesomebiologicalactivityandcoulddisposeofO2.
简介:有o-phenanthroline(Phen)和Schiff基础salicylaldehydeL本氨基丙酸(KHL)的稀土元素离子的五新奇第三的建筑群在乙醇被综合。他们的作文被元素的分析,臼齿的传导力,1HNMR,英尺红外,和拉曼系列描绘。建筑群的公式被验证是RE(L)(Phen)Cl(H2O)(RE=La3+,Ce3+,Nd3+,Er3+,和Gd3+;L=Schiff基础salicylaldehydeL本氨基丙酸;phen=o-phenanthroline)。甲基thiazolyltetrazolium(MTT)比色法和流动cytometry被用来与K562肿瘤房间测试建筑群的anticancer效果。研究证明建筑群能禁止K562肿瘤细胞生长,产生,并且导致apoptosis。抑制比率被增加剂量加速,并且它与药剂量有重要积极关联。
简介:AnewtypeofdendriticNOBINderivedSchiffbaseligandshasbeensynthesizedandappliedtotitaniumcatalyzedhetero-Diels-AlderreactionofDanigheifsky'sdieneandaldehydes,affordingthecorresponding2-substituted2,3-dihydro-4H-pyran-4-oneingoodyieldsandmoderateenantioselectivities(upto59.2%ee).Itwasfoundthatthesizeofdendronattachedtothetridentatedligandshasslightimpactontheenantioselectivttyofthereactionandthesecondgenerationofdendriticligandexhibitedthebestenantioselectivity.
简介:二个Schiff底转移忍受morpholine戒指的方面链的金属建筑群,这被报导了被综合并且描绘,并且有一样的二建筑群基于代理人但是不同金属离子在这份报纸在p-nitrophenylpicolinate的催化水解作用被用作假装的hydrolase。PNPP催化水解作用的机制被结果建议并且支持光谱分析和运动计算。一个运动数学模型,适用于计算运动并且PNPP催化水解作用的热力学参数,在建议的机制的基础上被建立了。学习的结果证明二建筑群在PNPP催化水解作用的PNPP催化水解作用,和率举办一项好催化活动随缓冲区解决方案的pH值的增加被增加并且由建筑群的金属离子的极化效果影响了。
简介:New[1+1]and62-membered[2+2]Schiffbasemacrocyclescontaininga2,6-diamidopyridinesubunithavebeensynthesizedbycondensationreactionoftheprecursorspyridine-2,6-dicarboxamideand1,10-bis(20-formylphenyloxy)decaneinthepresenceofphosphoricacidviaaone-potprocess.Thecyclocondensedproductswereeffectivelyisolatedbygelcolumnchromatographyandcharacterizedby~1HNMR,FTIR,massspectrometryandX-rayanalysis.Thetwomacrocycleshaveatwistedstructure,andnotanopen‘circular’conformationinthesolidstate.
简介:三建筑群,[Pr(NO3)3(HL)2](1),[Nd(NO3)3(HL)2](2)并且[嗯(NO3)3(HL)2]·0.5H2O(3),从Schiff配位体2-的反应被综合[(4-methylphenylimino)甲基]-6-methoxyphenol(C15H15NO2,HL)与行(NO3)3·6H2O(行=Pr,Nd,嗯)。由单个水晶的X光检查衍射技术的描述,元素的分析,臼齿的传导力,英尺红外,紫外力,(1)HNMR和热分析证明标题建筑群是中央行(III)离子在双性人是十坐标的中性分子顶端的反六面体棱柱几何学,由三个有二齿的NO3(?)阴离子向提供了在二有二齿的Schiffligands的酉分的hydroxy和methoxy组的四个氧原子和六个氧原子。另外,建筑群3的热分解的运动机制与TG-DTG被决定由不可分、微分的方法的曲线。热分解反应机制的功能和运动赔偿效果的方程被获得。
简介:Asidechainliquidcrystallinecopolysiloxane,whichwouldshowelectro-opticeffectsasknownfromlowmassliquidcrystal,wassynthesizedbyhydrosilylationreaction,andthetwohomologousmonomerswithdifferentlengthspacerscontainingSchiff’sbasemesogenwith—NO2terminatedgroupweregraftedtoapolysiloxanemainchain.Residualmonomerincrudeproductiseffectiveinreinforcingtheresponsetoanelectricfieldoverthatofpurepolymericliquidcrystal.
简介:TheSINOPECJinanBranchCompanybyadoptingtheprocessflowschemeinvolvingsolventrefining-hydrotreating-solventdewaxing-clayrefiningandrelevanttechnologydevelopedbyRIPPhasconstructedtheHVIIIlubebaseoilsproductionunit,whichcameonstreaminOctober-November2012.Thisunithasmanufacturedsuccessivelyfromthedistillatesof#3and#4drawlines
简介:Purpose:Thepurposeofthisstudywastocompare4techniquesforarrivalatabaseaftersprintingmaximallytoreachit:slidinghead-first,slidingfeet-first,runningthroughthebasewithoutslowing,andstoppingonthebase.Asecondarypurposeofthestudywastodetermineanyadvantagetheremaybetodivingintofirstbasetoarrivesoonerthanrunningthroughthebase.Methods:Twohigh-definitionvideocameraswereusedtocapture3-dimensionalkinematicsofslidingtechniquesof9intercollegiatebaseballplayers.Anothervideocamerawasusedtotimerunsfromfirstbasetosecondin4counterbalancedconditions:runningthroughthebase,slidinghead-first,slidingfeet-first,andrunningtoastop.Mathematicalmodelingwasusedtosimulatedivingtofirstbasesuchthattheslidewouldbeginwhenthehandtouchesthebase.Results:Baseduponoverallresults,thequickestwaytothebaseisbyrunningthroughit,followedbyhead-first,feet-first,andrunningtoastop.Conclusion:Therewasanon-significanttrendtowardanadvantagefordivingintofirstbaseoverrunningthroughit,butmoreresearchisneeded,andeveniftheadvantageisreal,therisksofexecutingthistechniqueprobablyoutweightheminisculegain.