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1.
Recentprogressinsurfacespectroscopyandmolecularbeamscatteringanddetectiontechniquesmakesitnowpossibleatthemicroscopicleveltoaccuratelymeasuresuchthingsasdissociationrates,adsorbatebindingandgeometry,andmobilitiesofadsorbedspeciesonsurfaces.Thiskindofe… 相似文献
2.
Thesolventextractionofcobaltwithorganophosphorusacidicextractantsischaracterizedbyitshigherextractionselectivitythannickelfromaqueoussolutions[1].Theextractabilityandselectivityofmetalionsarecloselyrelatedtothecoordinationstructureofmetalswithextractan… 相似文献
3.
IntroductionInthepastdecades ,considerableresearchworkhasbeenfocusedonthefluorinatedionomers1 4 whichhaveexceptionalthermalandchemicalstabilities .5Thereforetheyhaveshownspecialapplications ,suchasmembraneseparationintheelectrochemicalprocessesandsuperaci… 相似文献
4.
Relationship between the helical structure and optical activity of some chiral cyclic esters 总被引:1,自引:0,他引:1
Helicalstructure,animportantfactoraffectingtheopticalactivityofchiralmolecules,haslongbeenconcernedbychemistsandphysicists.In1860,Pasteurinhisfamousstudyontartaricacidsaskedthequestionwhethertheopticalactivityisduetotheatomsofthedextroacidgroupedonthespi… 相似文献
5.
Introduction Non covalentinteractionshaveabiginfluenceontheconformationalorganizationofthebiomoleculeswhichisresponsiblefortheregio andstereo specificityofvariousbiologicalprocesses .1Amongtheseinteractions ,thein tramolecularstackinginteractionbetweens… 相似文献
6.
Thereversemicellesarewater in oilmicroemulsiondropletsstabilizedbyasurfactantinanorganicsolvent .Thepolarsurfactantheadgroupssurroundsmallwaterpoolswithinwhichhydrophilicmolecules,suchasaminoacidsandproteins ,canbesolubilized .Theapolarsurfac tanthydrocar… 相似文献
7.
Ng Seik Weng~* 《结构化学》2000,(6)
1 INTRODUCTIONSeveralincorrectspacegroupshavebeenre assignedbymakinguseofsimulatedstructurefactors;however,thecruxofthisoranyspacegrouprevisionistheaccuratereportingofthespacegroupandatomiccoordinatesoftheincorrectlydeterminedstructuresincethetruestruc… 相似文献
8.
Inrecentyears,thestudyontheconversionandapplicationofsolarenergyhasbeenoneofthemostactiveaspectsinthefieldsofnewenergeticsourcedevelopment,thefabricationofnovelsolarenergycellsbecomesthegoalofpeople’sefforts.Inorganicsemiconductivesolarenergycellshave… 相似文献
9.
IntroductionDesignandsynthesesofnovelsupramolecularcom plexeswithunusualandtailorablestructuresarefunda mentalstepsindiscoveryandfabricationofvarioustech nologicallyusefulfunctionalsupramoleculardevices .1 3Recently ,considerableeffortshavebeendevotedtocr… 相似文献
10.
IntroductionTheorganometallicchemistryoflanthanidemetalsinlowoxidationstatesiscurrentlyun dergoingarapiddevelopment.Thestudiesondivalentmetal complexchemistryhaveledtoavarietyofnewclassesofcomplexesandreactivitypatterns[14 ] .Theimportanceofstericfactorsc… 相似文献
11.
IntroductionSupramolecularself organizationasacontrollabletechniquefortheartificialsupramoleculararchitectureatmolecularand/ornanosizedlevelisshowingfascinatingperspectivesinthefieldofthemolecularmaterialsde sign ,duetothatorganicandinorganiccomponents… 相似文献
12.
IntroductionLithiumionconductorsarepromisingmaterialsformanykindsofelectrochemicalapplication ,suchaselec trolytesforhigh energydensitybatteries .1Thepropertiesofhighionicconductivity ,highdecompositionpotential,stabilityandcompatibilityagainstelectrodess… 相似文献
13.
Integralmembraneproteinsarecriticaltoawidevarietyofcellularpsychologicalactivities,suchascytochromeoxidaseinmediatingelectrontransportandtheactivationofintracellularsignalsbytransmembranereceptorscoupledtoGproteins[1].Inthesemembraneactivities,themechan… 相似文献
14.
ThefluorosulfonylisocyanateandchlorosulfonylisocyanatemoleculesarethemostreactivemoleculesforthetransferenceoftheNCOgroupandareveryimportantinsyntheticchemistry.Duetotheirversatilityinchemicalreactions,theyhavealsobecomethesubjectofmanystructuralstudi… 相似文献
15.
Oneofthemostimportantaimsofphotochemistryisthedesignandconstructionofmoleculardevicesforener gyconversionandinformationprocessing .Thephotoactivemoleculardevicesarebasedonthephotoinducedelectrontransferbetweendonor acceptortypeorganiccompoundsandaccept… 相似文献
16.
Cohesional Entanglement of Amorphous Polymer in Glass State as Probed by Equilibrium Swelling in a "Non-Solvent 总被引:1,自引:0,他引:1
IntroductionChainentanglementinrubberyandfluidstateofanamorphouspolymerisacharacteristicfeatureofthecon densedstateoflongchainmacromolecules .Theentangle mentconceptwasestablishedthroughstudiesofmeltvis cositybehavior,inrespecttothemolarmassdependenceof… 相似文献
17.
Introduction Photoinducedelectrontransfer (PET)isoneofthemostinterestingfeaturesofdonor acceptorsystemsforthedesignandtheconstructionofartificialmoleculardevicesforenergyconversionandinformationprocessingwhichhaveanumberofpotentiallyintriguingapplicat… 相似文献
18.
Chiral model complexes for methane monooxygenase and their asymmetric catalysis of styrene epoxidation 总被引:1,自引:0,他引:1
Asymmetricsynthesis,inparticularthecatalyzedasymmeticsynthesis,hasbeenafascinatingareaofcurrentresearchinterestduetospecialphysicologicalactivitiesandwideapplicationsasmedicinesandpesticides[1].Asymmetriccatalyst,whichpresentsachiraltemplate,playsacrucia… 相似文献
19.
Noncyclicpolyethershaveattractedmoreandmoreattentionfortheirnonexpensive,lesstoxicityandsoon.Theyhavesomepromisingapplicationsinsolventextractionandenrichmentofmetalionsaswellasintheionselectiveelectrode,etc.[1].NoncyclicpolyetherSchiffbaseisoneofpolyden… 相似文献
20.
IntroductionMaterialsbasedoncobaltoxideshaveattractedagreatinterestinviewoftheirpotentialapplicationsinscientificandtechnologicalfields .1Theyhavebeenusedfortheproductionofsolid statesensors ,2 heterogeneouscatalysts ,3electrochromicdevices (ECDs) 4andasinte… 相似文献