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class除了班级,居然还有这层意思! class除了表示“班级”的意思,还会有“等级、阶级、阶层、类别、等级制度”等意思。 最开始的时候指的古罗马打仗期间召集起来的一群一群士兵,在军队里有各种各样的等级,它后来指古罗马社会里把人分成的6个等级,再后来就是现在的用法。...
There is no η2-olefin intermediate on the reaction path. DFT calculations seeking the energy and structure of the two carbenes Cp2ZrHCl[CF(CH3)] and Cp2ZrFCl[CH(CH3)] are also described. 展开 DOI: 10.1021/ja0024340 被引量: 1 年份: 2001 ...
SecTrust2 ClassReference Feedback DefinitionNamespace: Security Assembly: Xamarin.iOS.dll C# Copia [ObjCRuntime.TV(12, 0)] public class SecTrust2 : CoreFoundation.NativeObjectInheritance Object NativeObject SecTrust2 Attributes TVAttribute ...
By employing Pd(OAc)2, Cs2CO3, or NaOH, and the new ligand (t-Bu)2PNP(i-BuNCH2CH2)3N (3a), an electronically diverse array of aryl bromides and chlorides possessing base-sensitive substituents (nitro, ester, and keto) provide coupling products with bulky aryl amines in good to excellent...
X-ray Crystal Structure of Ru(CH CH[BOC 6 H 4 O])Cl(CO)(PPh ... Ethyne inserts readily into the Ru−B bond of the five-coordinate boryl complex Ru(BOCH)Cl(CO)(PPh)() to form the borylalkenyl (). Complex has been chara... GR Clark,GJ Irvine,WR Roper,... - 《...
The reactions of the alkynes [Ar(CCH)3], [Ar'(CCH)2], and ToCCH (To = 4-MeC6H4) with the appropriate amounts of PPN[Au(acac)2] (acac = acetylacetonato) allow the syntheses of the anionic complexes PPN[Au{CCAr(CCH)2}2] (9), PPN[Au{CCAr'CCH}2] (10), PPN[Au{CCTo}2...
AcceptMergeNamespaceConflictRequiresDestinationException Class AcceptMergeVersionConflictRequiresDestinationException Class AcceptYoursRenameTheirsRequiresDestinationException Class AccessEntry Class Admin Class AdminRepositoryInfo Class Annotation Class ArtifactIdentifierRequiredException Class ArtifactProvider Class Authentication...