首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 390 毫秒
1.
INTRODUCTIONThesynthesisofpolynuclearcopper lanthanoidcomplexesisofspecialinterestforsev eralreasons〔1-4〕.Thesecomplexesareim...  相似文献   

2.
1 INTRODUCTIONThemixedchaletNi(Ⅱ)complexescontainingpyridineshavebeenofgreatinterestforinorganicandbioinorganicchemists[1~5].VanillinisoneofthenormalusedcompoundswhichhavetwooxygenatomsandareeasytoformanumberofcomplexeswithCu(Ⅱ),Co(Ⅱ),Ni(Ⅱ),Zn(Ⅱ)andetal[6].Inth…  相似文献   

3.
1INTRODUCTIONRecentresearchonaseriesofdinuclearmolybdenum(0)carbonylcomplexescontain ingthiolato bridgeshasledtotheconclusion...  相似文献   

4.
1INTRODUCTIONInrecentyears,aseriesoflanthanide aluminiumcomplexeswhichareactiveforpoly merizationofolfins〔1〕havebeenreported....  相似文献   

5.
IntroductionInthepastdecade ,alotofinteresthasbeencon centratedonpreparingandcharacterizingbridgingmetalcomplexesforinvestigatingtheirpotentiallyusefulelec tronicormagneticproperties .1,2 Recently ,severalmetalcomplexesbridgedbydicarboxylatehavebeensynthes…  相似文献   

6.
1INTRODUCTIONRecently,thechemistryofcomplexescontaininglow valencemetalatomshasincreas inglyatractedtheatentionfromchemistsan...  相似文献   

7.
1INTRODUCTIONMetaliccomplexesofschifbaseshaveatractedtheatentionofresearchersduetotheirantiviral,fungistatic,andcatalyticacti...  相似文献   

8.
1INTRODUCTIONCoppercomplexeshavealargevarietyofstericstructuresandplayanimportantroleincatalysingtheenzymaticactivities,which...  相似文献   

9.
1INTRODUCTIONSinceRobsonhasputforwardtheconceptionofdinucleatingligandin1970〔1〕,dinuclearcomplexeshavereceivedmuchatentionfor...  相似文献   

10.
1INTRODUCTIONTheextensiveandrapiddevelopmentofthechemistryofdinucleartransitionmetalcomplexesbridgedbyunsaturatedhydrocarbons...  相似文献   

11.
IntroductionOrganotin(IV)complexeswerewidelyusedasbio cides,fungicidesandinindustryashomogeneouscata lysts.1 6 Morerecently ,pharmaceuticalpropertiesofalkyltin(IV)complexeswithN ,N dialkyldithiocarba mateligandshavebeeninvestigatedfortheirantitumouractivity.7,8…  相似文献   

12.
1 INTRODUCTIONSulfoxideisknowntoformcoordinationcompoundswithLanthanide(Ⅲ)andtheirsyntheses,propertiesandvariousphysicalcharacteristicshavebeenreport-ed〔1~9〕.However,therearesomanydifficultyinpreparingthekindoflanthanidecomplexesbecausetheanionsuseda…  相似文献   

13.
1INTRODUCTIONOrganolanthanidecomplexesinvolvingbothcyclopentadienylandβ diketonatochelateligandshavebeensynthesized〔1 4〕,ando...  相似文献   

14.
1 INTRODUCTIONCertaincoppercomplexeshavebeenshowntohaveunusualchemicalpropertiessuchasoxygentransfer,oxidativeadditionandhomogenouscatalytichydrogenation[1].Oxidativeadditionreactionsarekeystepsintheactivationofσbondsinagreatnumberofcatalyticprocess.Cop…  相似文献   

15.
1 INTRODUCTIONCu(I)complexeswithphosphineandarsineligandsarewellknown〔1〕.ForCuphosphinecomplexes,theCu∶ligandratiovariesfrom1∶1to1∶4andcoordinationgeometryofCu(I)rangesfromlineartotrigonal,thentotetrahedralextremes;forexample,the1∶2adductsCu(PPh3)…  相似文献   

16.
1 INTRODUCTIONTransitionmetalclustercomplexeshavebeenreceivingconsiderableattentioninrecent yearslargelybecauseoftheir potentialapplicationsincatalysisaswellasthenoveltyandversatilityoftheirreactionsandstructures.[1~ 4] Ourinterestinmetalclustercatalysisp…  相似文献   

17.
IntroductionOwingtotheformationofstableanddeeplycoloredcomplexeswithheavymetalions(suchaslead(Ⅱ)etc),theferrocenylaroylhydrazonesarenotonlypotentiallyusefulasspe-cificreagentsinanalyticalandextractivechemistry[1]butalsostronglyactivebiologically,andc…  相似文献   

18.
建方方  赵朴素  肖海连  张书圣 《中国化学》2002,20(10):1134-1137
IntroductionImidazolehasattractedconsiderableinterestasalig andinmanybiologicalsystemsinwhichitprovidesapo tentialbindingsiteformetalions .1Imidazoleitselfisanunidentateligandandformscomplexeswithmetalionsthroughitstertiarynitrogenatom .Somecomplexesofi…  相似文献   

19.
1 INTRODUCTIONDimolybdenumalkynecomplexes〔Mo2(μR1C≡CR2)(CO)4(η5C5H5)2〕canreactwithavarietyofreagentssuchasphosphines,thiols,elementalsulfur,Ru3(CO)12andCo2(CO)8〔1-4〕.Intheproductsthealkyneligandisusuallyretained.Sometimes,alkynescissionoccurs.Being…  相似文献   

20.
IntroductionGreatprogresshasbeenmadeinthechemistryofdi valentorganolanthanidecomplexes .Avarietyofnewclassesofcomplexeshavebeensynthesizedandwidelyusedinorganicsynthesisandpolymerchemistry .1 6 Itwasnoticedthatmostoftheworkpublishedisfocusedonthecomplexe…  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号