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ID:52345267
大小:2.33 MB
页数:5页
时间:2020-03-26
《具有荧光响应功能的分子四边形的组装.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第26卷第12期无机化学学报Vo1.26No.122010年12月CHINESEJOURNAlOFINORGANICCHEMISTRY2l38—2142具有荧光响应功能的分子四边形的组装朱翔黄薇何成段春迎(大连理工大学化工学院,精细化工国家重点实验室,大连1160121摘要:由缩氨基脲和2-喹啉醛合成了席夫碱配体HL,与过渡金属离子Cd组装得到了四边形配合物CQ。用X射线衍射对配合物的晶体结构进行了测定,发现其具有,4。/n空间群通过荧光测试发现该配合物在CHCN溶液中具有较强的荧光,加人间苯二甲酸、对苯二甲酸阴离子后荧光发生淬灭,而加入邻苯二甲酸阴离子荧光无
2、变化.可以将邻苯二甲酸阴离子从其他2种二酸阴离子f{l隧分出来。关键词:镉离子;荧光;席大碱配体:二酸阴离子中图分类号:0614.24+2文献标识码:A文章编号:1001—4861(2010)12—2138—05Self-assemblyofFluorescentMolecularSquaresZHUXiangHUANGWeiHEChengDUANChun—Ying(StateKeyLaboratoryofFineChemicals,DalianUniversityofTechnology,Dalian,Liaoning116012)Abstract:Anov
3、elCd—basedtetranuclearcomplexCQ([Cd4H2L4](NO3)2·14H20,whereH2L=bis[2一Quinolinemethy1]carbohydrazone1hasbeensynthesizedviaself-assembly.Single—crystalX—raydiffractionanalysisshowsthatCQisamolecularsquare,whichcrystallizesinan141/aspacegroup.CQshowsastrongfluorescentemissionbandinCH3C
4、Nsolution.ThefluorescenttitrationexperimentshowstheCQhasafluorescentquenchingeffecttowardP—phthalateandm—phthalatedicarboxylates,whilesilentforthe0一phthalateone,suggestingitcanbeusedasafluorescentchemosensorfordistinguishingo.phthalatefromtwootherisomersofdicarboxylates.CCDC:791184.
5、Keyword:Cdions;luminescence;Schifbaseligand;dicarboxylates0Introductionincludesdetectingandamplifyingguest—bondingeventstoproduceameasurableoutput闱.Thus.apropercomm-Supramolecularassemblyofpredesignedorganicunicationsystemthatisabletotransducetherecogni-andinorganicbuildingblocksisa
6、nexcellenttoolfortioninformationintoaneasy·to--measuresignalmustbeconstructingwell—definednanosizemolecularcavities⋯.includedintheoverallmoleculardesign[4~.Syntheticstrategiesforconstructingfunctionalcoor—Recently,thedevelopmentofsyntheticreceptorsdinationcageswithvariousstructuresa
7、ndnovelinclu—abletobindanionsselectivelyinadetectablefashiontosionpropertieshavebeenwellestablishedtheseyears【2『
8、anobserverviachangesinelectrochemicalresponseorAsthedevelopmentofsupramolecularchemistry,theinfluorescenceintensityconstitutesanimportantyetmajorchallengegoesbeyondachiev
9、ingasize—oradificul
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