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1.
IntroductionSupramolecularself organizationasacontrollabletechniquefortheartificialsupramoleculararchitectureatmolecularand/ornanosizedlevelisshowingfascinatingperspectivesinthefieldofthemolecularmaterialsde sign ,duetothatorganicandinorganiccomponents…  相似文献   

2.
1 IntroductionAwidevarietyoftrinuclearoxo carboxylatocomplexeshavebeensynthesizedandstudiedfortheirinterestingchemicalandphysicalproperties[1 ].Thevibrationalspectraofmostofthesecompounds,whichgivemuchinformationaboutthestructureandelectrondelocalization…  相似文献   

3.
IntroductionThesupramolecularcomplexeformedbytheweakinteractions (electrostaticinteraction ,hydrogenbonds ,vanderWaalsforce ,short rangeexclusionforce ,etc .)ofmorethantwosortsofspeciesisanorganizingentitythatusuallypossessesspecialstructureandfunction .1Sup…  相似文献   

4.
1 INTRODUCTIONCertaincoppercomplexeshavebeenshowntohaveunusualchemicalpropertiessuchasoxygentransfer,oxidativeadditionandhomogenouscatalytichydrogenation[1].Oxidativeadditionreactionsarekeystepsintheactivationofσbondsinagreatnumberofcatalyticprocess.Cop…  相似文献   

5.
李宝龙  徐艳  刘琦  王化勤  徐正 《中国化学》2002,20(2):187-190
IntroductionCrystalengineeringofsupramoleculararchitecturessustainedbycoordinatecovalentbondsorhydrogenbondsrepresentsarapidlyexpandingfieldthatofferspo tentialfordevelopmentofnewclassesoffunctionalsolids .1,2 Thearchitecturesofcoordinationpolymerscanbe…  相似文献   

6.
1INTRODUCTIONOctacarbonyldicobaltisaveryconvenientstartingmaterialforthepreparationofalmostanycobaltcompound〔1〕.Thereactionso...  相似文献   

7.
IntroductionSinceK pfdiscoveredthatdicyclopentadi enyltitaniumdichlorideexhibitedantitumouractionin1979,1alargenumberofcyclopentadienyltitaniumcom plexesbearingdifferentsubstituentshavebeensynthe sized .2 ,3Theexperimentaldatarevealedthat (Cp) 2 TiX2(X =halogen ,p…  相似文献   

8.
SpectroelectrochemicalStudiesontheInteractionsofComplexesofCu(phen)2+2andCu(bpy)2+2withDNAZHAOGuang-chao,ZHUJun-jieandCHENHon...  相似文献   

9.
IntroductionRecentyears ,coordinationpolymershavebeenre ceivedmuchattentionbecauseoftheirinterestingphysi calpropertiessuchaselectricalconductivity ,mag netism ,nonlinearopticalpropertiesandpotentialappli cationsinseparationandcatalyst.1Themodularap proach…  相似文献   

10.
Introduction  Non covalentinteractionshaveabiginfluenceontheconformationalorganizationofthebiomoleculeswhichisresponsiblefortheregio andstereo specificityofvariousbiologicalprocesses .1Amongtheseinteractions ,thein tramolecularstackinginteractionbetweens…  相似文献   

11.
1 INTRODUCTIONTransitionmetalclustercomplexeshavebeenreceivingconsiderableattentioninrecent yearslargelybecauseoftheir potentialapplicationsincatalysisaswellasthenoveltyandversatilityoftheirreactionsandstructures.[1~ 4] Ourinterestinmetalclustercatalysisp…  相似文献   

12.
IntroductionTheanionicclayisalsocaledlayereddoublehydroxide(notedasLDH),itsuniquebasiccatalyticfunction,interesting“memoryefe...  相似文献   

13.
IntroductionAlthoughthecatalyticdehydrogenationofisobutaneintoisobutenehasbeencarriedoutincommercialplantsoverCr2O3-Al2O3orno...  相似文献   

14.
A novel two‐dimensional network dibenzo‐18‐crown‐6 (DB18‐C6) complex: [Na (DB18‐C‐6) (H2O)2] [Na (DB18‐C‐6) (SCN)2] has been isolated and characterized by elemental, IR and X‐ray diffraction analysis. The crystal structure belongs to monoclinic, space group P21/c with cell dimensions a = 1.06178(7), b = 1.40243(8), c = 3.03496(19) nm, β = 90.4220(10)°, V = 4.5292(5) nm3, Z=4, Dcalcd =1.351 g/ cm3, F(000) = 1936, R1 = 0.0369, wR2 = 0.0821. The most interesting feature in this structure is that complex cation and complex anion form a two‐dimensional network via τ‐τ stacking interactions, hydrogen bonds and electrostatic interactions.  相似文献   

15.
IntroductionMononuclear ,dinuclearandpolymerictypesofcrys talstructuresforlanthanidecomplexeswithbenzoicacidanditsderivativeshavebeenobtainedbecauseofthevari ationofbridgingformsforcarboxylategroupandcoordina tionabilityofdiammineligands ,suchas 1,10 phena…  相似文献   

16.
毛江高  金钟声 《结构化学》1994,13(5):329-333
CrystalStructureof[La(NCS)_3(18-crown-6)(DMF)]MaoJiang-Gao(FujianInstituteofResearchontheStructureofMatter,AcademiaSinica,Fuzh?..  相似文献   

17.
IntroductionSincethepioneerworksofClearfieldandcoworkersinthe 196 0s ,1,2 layeredmetalphosphateshaveattractedmuchattentionduetotheirapplicationsonionex change ,intercalation ,heterogeneouscatalysisandsorp tion .3 7Amongthenumerouslamellarphases ,theproto typical…  相似文献   

18.
IntroductionFastprotonconductorshavebeenstudiedforseveraldecadesduetotheirapplicationstolowtemperaturefuelcelsandhumiditysens...  相似文献   

19.
IntroductionThehexacyanoferrateredoxcoupleisoneofthemostextensivelyinvestigatedoutersphereredoxreactions[1].ThestudiesofFe(CN...  相似文献   

20.
1 INTRODUCTIONRecentyearshavewitnessedamarkedincreaseintheliteratureintheuseofsele niumandtelluriumasbridgingandstabilizingligandssincetheyexhibitunusualstruc turalandreactivitypatterns.〔1〕Ourongoingresearchprogramaimedatexploringnewconvenientsynthetic…  相似文献   

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