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简介:TwonewintercalationcompoundsFe0.90PS3(phen)0.41(1)(phenstandsfor1,10-phenanthrolineincludingapartof1,10-phenanthrolineH+)andFe0.83PS3(bipy)0.34(2)(bipystandsfor2,2’-bipyridineH+)weresynthesizedbythereactionofthelayeredFePS,with1,10-phenanthrolineor2,2’-bipyridineinthepresenceofaniliniumchloride.Theywerecharacterizedbyelementalanalyses,powderX-raydiffraction(XRD),infraredspectroscopy.Thelatticespacingoftheintercalatewasexpandedby0.90nmforFe0.90PS3(phen)0.41and0.57nmforFe0.83PS3(bipy)0.34withrespecttothepristineFePS3,indicatingthattheringplaneoftheguestsisperpendiculartothelayerofthehost.TheUV-visabsorptionspectraofthefiltrateinpreparationoftheintercalatesindicatethat1,10-phenanthrolineor2,2’-bipyridinealsoactsasacomplexingagenttoremoveintralamellarFe2+ionsintothesolutionduringintercalation.Themagneticpropertiesof1and2werestudied.
简介:Twocystine-bearing1,3-bridgedcalix[4]areneswereusedasthecoatingsofthequartzcrystalmicrobalance(QCM)withgoldelectrodes.Thetwocalix[4]arenederivativeswereself-assembledontothegoldelectrodesurfacebythecovalentattachmentbetweenthedi-sulfurandgold.Thecompoundofcystine-bearingbi-phenylalanine1,3-bridgedcalix[4]arene(CPC)withlongeralkylchainhadbetterself-assembledcapacityontothefreshsurfacesofgoldelectrodethanthatofcystine-bearing1,3-bridgedcalix[4]arene(CC)withcomparablyshorteralkylchain.ThemodifiedQCMsensorswereusedtorecognizethebutylamineisomersingas.TheresultsshowedthattheQCMcoatedwithbothcompoundshadpreferentialaffinityton-butylamine,theni-butylamine,t-butylamineintherangeoflowconcentrations,indicatingthatintherecognitionprocess,thesterichindranceeffectplayedanimportantrolewhenformingcomplexwithguestmolecules.Whentheconcentrationsoftheanalyteswereincreased,thepolarityandthemagnetismofthebutylaminebecamedeterminativefactors.Thereversibilitywasimprovedgreatlyandtheequilibriumtimewasmuchshorterontheself-assembledfilmthanonthefilmobtainedbydroppingcoating.
简介:Afacilesolidphasesynthesisof2-substituted1,3-oxazin-6-onesusingpolymer-supportedMeldrum'sacidhasbeenreported.Reactionoftheresin-boundcyclicmalonicacidesterwithtriethylorthoformateandsubsequentdoublesubstitutionwithamide,affordedthecorrespondingpolymer-supportedacylaminomethylenecyclicmalonicacidester,whichuponthermaltreatmentledto1,3-oxazin-6-onesingoodyieldsandwithhighpurity.
简介:Anewsyntheticapproachto1,4,6-tri-O-benzylmyo-inositolwasdescribedonthebasisoftheregioselectivebenzylationof1,2-O-isopropylidene-4,6-di-O-benzylmyo-inositol,subsequentacidhydrolysis,phosphorylationwithtetrabenazylpyrophosphateandappropriatedeprotec-tion.
简介:The1.3-dipolarcycloadditionreactionof2-trifluoromethyl-oxazoloneandtheactivatedcarbon-carbonmultiplebondwasstudiedandgaveaconvenientwaytosynthesize2-trifluoromethylpyrrolederivatives.
简介:热行为,机制和在一个规划温度的模式的标题混合物的发热的第一阶段的分解反应的运动参数借助于DSC,TG-DTG和红外被调查了。反应机制被建议。在微分形式,明显的激活精力(Ea)和这反应的pre指数的因素(A)的实验运动模型功能是(1-)?1.119,211.3kj/mol和1020.2s?1分别地。混合物的热爆炸的批评温度是202.2爠慥瑣潩?㈠低??湡敧漠??????????????鈿酌顛鱎?????疞????陴?陴?T
简介:标题化合物C26H26O5以2,3-萘二甲醛和5-甲基-1,3-环己二酮为原料,在醋酸溶剂中,室温下经搅拌多组分一锅法合成得到.其结构通过单晶X-射线衍射法确定,晶体属单斜晶系,空间群P21,相对分子质量Mr=418.47,晶胞参数a=0.99004(8)nm,b=1.09098(9)nm,c=1.04246(11)nm,V=1.08753(17)nm3,Z=2,晶胞密度Dc=1.278g/cm3,吸收系数μ=0.088mm-1,单胞中电子的数目F(000)=444.晶体结构用直接法解出,经全矩阵最小二乘法对原子参数进行修正,最终的偏离因子为R1=0.0533,wR2=0.1293.在晶体结构中新形成的吡喃环为半椅式构象,而茚中五元环则为信封式构象.
简介:Tetrabutylammoniumorpotassiumsaltsoforganometalllicderivativesoflacunarypolyanion(RM)3P2W15O59^n-(RM=CpTi,CpZr,C4H7O2SnorC5H9O2Sn)havebeenpreparedandstructurallycharacterizedbyelementalanalysis,IR,UV-Vis,^1HNMRand^183WNMRspectroscopies.Thetitlecomplexesexhibitantitumoractivityinvitro.
简介:利用水热工艺,选用有机配体3,3’,5,5’-四甲基-4,4’-联邻二氮杂茂(H2X)和CuCl2·2H2O为起始原料,合成了1个新的多酸基杂化化合物[Cu2(H2X)2(Mo6O19)]·2H2O被合成.采用X-射线单晶衍射、红外光谱、元素分析和热重分析等手段对该化合物的结构进行了表征.单晶测试结果表明该化合物为1D链状化合物,属于三斜晶系,P-1空间群,晶胞参数a=0.9469(3)nm,b=0.9544(3)nm,c=2.0599(6)nm,α=90.717(4)°,β=93.518(5)°,γ=102.802(4)°,V=1.8112(9)nm3,Z=4,R1=0.0829,wR2=0.1512.
简介:利用基团拼合原理,将2,2′-联吡啶和硫醚结构引入到1,3,4-噁二唑母体结构中.以1,10-菲罗啉为原料,经过氧化、酯化、肼解以及环合等化学反应,合成了中间体2,2′-联吡啶-3,3′-二甲酰肼、2,2L联吡啶-3,3,-二(5-E1,3,4-噁二唑-2-硫酮])以及4个2,2L联吡啶-3,3′-二(5-E1,3,4-噁二唑-2-硫醚])系列目标化合物,其结构通过1HNMR和单晶X-射线衍射等进行表征.晶体结构分析表明:2,2′-联吡啶的3和3′位上取代基不同,2个吡啶环所在平面的偏转角度不同,1,3,4-噁二唑-2-硫醚结构能使2个吡啶环呈现较大的偏转角度.