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1 INTRODUCTIONWehaveshownaninterestinexopolyhedralcyclizationofmetalligandstocluster.AseriesofmetallaboranecompoundscontainingfivememberedringssuchasM-O-C-O-BandM-S-C-O-Baresynthesizedandcharacterized.Thegroupsofcyclizationincludeacetate〔1〕,benzoat… 相似文献
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1INTRODUCTIONInrecentyears,aseriesoflanthanide aluminiumcomplexeswhichareactiveforpoly merizationofolfins〔1〕havebeenreported.... 相似文献
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1 INTRODUCTIONSulfoxideisknowntoformcoordinationcompoundswithLanthanide(Ⅲ)andtheirsyntheses,propertiesandvariousphysicalcharacteristicshavebeenreport-ed〔1~9〕.However,therearesomanydifficultyinpreparingthekindoflanthanidecomplexesbecausetheanionsuseda… 相似文献
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1 INTRODUCTIONDimolybdenumalkynecomplexes〔Mo2(μR1C≡CR2)(CO)4(η5C5H5)2〕canreactwithavarietyofreagentssuchasphosphines,thiols,elementalsulfur,Ru3(CO)12andCo2(CO)8〔1-4〕.Intheproductsthealkyneligandisusuallyretained.Sometimes,alkynescissionoccurs.Being… 相似文献
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1INTRODUCTIONInrecentyearsbiologicalyactiveorganoseleniumcompoundshavebeguntoat tractconsiderableinterestduetotheiruniqueandd... 相似文献
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1INTRODUCTIONInrecentyears,higher nuclearityclustershavereceivedconsiderableatentionbecauseoftheirpotentialapplicationsinmany... 相似文献
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1INTRODUCTIONRecentresearchonaseriesofdinuclearmolybdenum(0)carbonylcomplexescontain ingthiolato bridgeshasledtotheconclusion... 相似文献
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NTRODUCTIONItisknownthatdialkylsulfidesareefectiveextractantsfortheextractionandsepara tionofnoblemetals〔1,2〕.Paladiumcomplex... 相似文献
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1INTRODUCTIONSinceVanNiekerkandSchoening〔1〕firstdemonstratedthebinuclearnatureofcopper(Ⅱ)acetatemonohydrate,therehasbeenconsi... 相似文献
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1INTRODUCTIONOctacarbonyldicobaltisaveryconvenientstartingmaterialforthepreparationofalmostanycobaltcompound〔1〕.Thereactionso... 相似文献
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1INTRODUCTIONSinceRobsonhasputforwardtheconceptionofdinucleatingligandin1970〔1〕,dinuclearcomplexeshavereceivedmuchatentionfor... 相似文献
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LI Xue a YAO Hai Jun b HU Chun Hua a DOU Jian Min a c Sun Jie d JIN Ruo Shui b ZHENG Pei Ju a ② a 《结构化学》1999,(5)
1 INTRODUCTIONThefirstpolyhedralruthenaboraneisstructurallytypifiedbythecompound〔(PPh3)2RuB10H8(OEt)2〕in1984〔1〕,whichisobtainedin40%yieldbythereactionoftheclosodecaboraneanionB10H102-with〔RuCl2(PPh3)3〕inethanol/chloroformsolution.Researchershavesy… 相似文献
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1INTRODUCTIONRecently,thechemistryofcomplexescontaininglow valencemetalatomshasincreas inglyatractedtheatentionfromchemistsan... 相似文献
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1INTRODUCTIONOrganolanthanidecomplexesinvolvingbothcyclopentadienylandβ diketonatochelateligandshavebeensynthesized〔1 4〕,ando... 相似文献
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1 INTRODUCTIONResearchonSHGeffecthasbeenonaremarkablepositioninorganicnonlinearoptical(NLO)materialsfield.Theconjugateddelocalizedπelectronspossiblyresultinthesecond-orderNLOpropertyoforganiccompounds,soanumberofnitroanilinederivatives,suchas2-methyl… 相似文献
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ZHANG Yu Hua a WU Shu Lin a LI Qing Shan a SONG Cui Ping a YIN Yuan Qi a② HUANG Xiao Ying b a 《结构化学》2000,(1)
1 INTRODUCTIONInthedevelopmentoftransitionmetalclusters,agreatmanytetrahedron-typechiralclustershavebeensynthesized.Oneimportantreasonisthatsuchclusterscanbepotentiallyusedasasymmetriccatalystsintheprocesswhichistrulycluster-cat-alyzed〔1,2〕.However,t… 相似文献
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1 INTRODUCTIONOwingtotheirpossibleimportantrolesinlifeprocesses,cubanetypetetranuclearmolybdenumclustershavebeenextensivelyexploredduringthepasttwodecades,ofwhichtheclustercompoundsthatcontain〔Mo4XS3〕(X=SorO)corehaveattractedspecialattention〔17〕.Asp… 相似文献
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1INTRODUCTIONBenzodiazepinecompoundsareimportantpharmaceuticalagents〔1,2〕.Recentlyithasbeenfoundthatbenzodiazepinetricyclicde... 相似文献
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XU Jia Xi ZHANG Xin Yu JIN Sheng 《结构化学》1999,18(2)
1INTRODUCTIONInrecentyears,ithasfoundthatbenzothia/diazepinetricyclicderivativesarepo tentialpharmaceuticalagents〔12〕.Thus,we... 相似文献
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1 INTRODUCTIONBiscyclopentadienyllanthanidechloridesforallthelanthanideelementshavebeensynthesizedandstructurallycharacterized〔1〕.Tert-butylcyclopentadienylisasuitableligandforpreparationoflanthanocenechlorides.Thesynthesesandmolecu-larstructuresof〔(… 相似文献