Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Persistent_carbene> ?p ?o }
- Persistent_carbene abstract "A persistent carbene (also known as stable carbene) is a type of carbene demonstrating particular stability. The best-known examples and by far largest subgroup are the N-heterocyclic carbenes (sometimes called Arduengo carbenes), for example diaminocarbenes with the general formula (R2N)2C:, where the 'R's are typically alkyl and aryl groups. The groups can be linked to give heterocyclic carbenes, such as those derived from imidazole, imidazoline, thiazole or triazole.Traditionally carbenes are viewed as so reactive that were only studied indirectly, e.g. by trapping reactions. This situation has changed dramatically with the emergence of persistent carbenes. Although they are fairly reactive substances, i.e., undergoing dimerization, many can be isolated as pure substances.Persistent carbenes can exist in the singlet or the triplet states with the singlet state carbenes being more stable. The relative stability of these compounds is only partly due to steric hindrance by bulky groups. Some singlet carbenes are thermodynamically stable in the absence of moisture and (in most cases) oxygen, and can be isolated and indefinitely stored. Others are not thermodynamically stable and will dimerise slowly over days. The less stable triplet state carbenes have half-lives measured in seconds, and therefore can be observed but not stored.".
- Persistent_carbene thumbnail Imidazol-2-ylidene.jpg?width=300.
- Persistent_carbene wikiPageExternalLink 0159Viewer.html.
- Persistent_carbene wikiPageExternalLink 0161Viewer.html.
- Persistent_carbene wikiPageExternalLink 0165Viewer.html.
- Persistent_carbene wikiPageExternalLink 0173Viewer.html.
- Persistent_carbene wikiPageExternalLink books?id=ElV85eHbubQC&pg=PA153&dq=Alder+Bertrand.
- Persistent_carbene wikiPageExternalLink books?id=wp0C10qO0A8C&pg=PA329&dq=moss+jones+platz+Bertrand&cad=1.
- Persistent_carbene wikiPageID "3434970".
- Persistent_carbene wikiPageLength "58960".
- Persistent_carbene wikiPageOutDegree "279".
- Persistent_carbene wikiPageRevisionID "677026600".
- Persistent_carbene wikiPageWikiLink 1,2,4-Triazole.
- Persistent_carbene wikiPageWikiLink 1,2,4-triazole.
- Persistent_carbene wikiPageWikiLink 1,3-dithiolium.
- Persistent_carbene wikiPageWikiLink 1,4-Cyclohexadiene.
- Persistent_carbene wikiPageWikiLink 1,4-cyclohexadiene.
- Persistent_carbene wikiPageWikiLink 1-Bromohexane.
- Persistent_carbene wikiPageWikiLink 1-bromohexane.
- Persistent_carbene wikiPageWikiLink Acetylene.
- Persistent_carbene wikiPageWikiLink Acid.
- Persistent_carbene wikiPageWikiLink Acid_dissociation_constant.
- Persistent_carbene wikiPageWikiLink Acidity.
- Persistent_carbene wikiPageWikiLink Actinide.
- Persistent_carbene wikiPageWikiLink Actinides.
- Persistent_carbene wikiPageWikiLink Adamantane.
- Persistent_carbene wikiPageWikiLink Adamantyl.
- Persistent_carbene wikiPageWikiLink Addition_reaction.
- Persistent_carbene wikiPageWikiLink Air-free_technique.
- Persistent_carbene wikiPageWikiLink Alkali_metal.
- Persistent_carbene wikiPageWikiLink Alkali_metals.
- Persistent_carbene wikiPageWikiLink Alkane_stereochemistry.
- Persistent_carbene wikiPageWikiLink Alkene.
- Persistent_carbene wikiPageWikiLink Alkyl.
- Persistent_carbene wikiPageWikiLink Alkyllithiums.
- Persistent_carbene wikiPageWikiLink Alkyne.
- Persistent_carbene wikiPageWikiLink Amidinium.
- Persistent_carbene wikiPageWikiLink Ammonia.
- Persistent_carbene wikiPageWikiLink Aromatic.
- Persistent_carbene wikiPageWikiLink Aromaticity.
- Persistent_carbene wikiPageWikiLink Aryl.
- Persistent_carbene wikiPageWikiLink Atomic_orbital.
- Persistent_carbene wikiPageWikiLink Back-donation.
- Persistent_carbene wikiPageWikiLink Base_(chemistry).
- Persistent_carbene wikiPageWikiLink Benzophenone.
- Persistent_carbene wikiPageWikiLink Bidentate.
- Persistent_carbene wikiPageWikiLink Bis(9-anthryl)carbene.
- Persistent_carbene wikiPageWikiLink Bis(diisopropylamino)cyclopropenylidene.
- Persistent_carbene wikiPageWikiLink Bis(trimethylsilyl)amine.
- Persistent_carbene wikiPageWikiLink Bis(trimethylsilyl)mercury.
- Persistent_carbene wikiPageWikiLink Bond_angle.
- Persistent_carbene wikiPageWikiLink Bond_length.
- Persistent_carbene wikiPageWikiLink Bond_rotation_barrier.
- Persistent_carbene wikiPageWikiLink Borazine.
- Persistent_carbene wikiPageWikiLink Boron.
- Persistent_carbene wikiPageWikiLink Bromine.
- Persistent_carbene wikiPageWikiLink Carbene.
- Persistent_carbene wikiPageWikiLink Carbenes.
- Persistent_carbene wikiPageWikiLink Carbon_disulfide.
- Persistent_carbene wikiPageWikiLink Catalysis.
- Persistent_carbene wikiPageWikiLink Catalyst.
- Persistent_carbene wikiPageWikiLink Catalytic_cycle.
- Persistent_carbene wikiPageWikiLink Catalytic_cycles.
- Persistent_carbene wikiPageWikiLink Category:Carbenes.
- Persistent_carbene wikiPageWikiLink Category:Functional_groups.
- Persistent_carbene wikiPageWikiLink Category:Organic_compounds.
- Persistent_carbene wikiPageWikiLink Category:Organometallic_chemistry.
- Persistent_carbene wikiPageWikiLink Chalcogen.
- Persistent_carbene wikiPageWikiLink Chalcogenide.
- Persistent_carbene wikiPageWikiLink Chemical_decomposition.
- Persistent_carbene wikiPageWikiLink Chemical_equilibrium.
- Persistent_carbene wikiPageWikiLink Chirality_(chemistry).
- Persistent_carbene wikiPageWikiLink Chlorine.
- Persistent_carbene wikiPageWikiLink Chloroform.
- Persistent_carbene wikiPageWikiLink Conjugate_acid.
- Persistent_carbene wikiPageWikiLink Coordination_complex.
- Persistent_carbene wikiPageWikiLink Coordination_compound.
- Persistent_carbene wikiPageWikiLink Crown_ether.
- Persistent_carbene wikiPageWikiLink Cryptand.
- Persistent_carbene wikiPageWikiLink Cycloaddition.
- Persistent_carbene wikiPageWikiLink Cyclopropenylidene.
- Persistent_carbene wikiPageWikiLink Denticity.
- Persistent_carbene wikiPageWikiLink Deoxygenation.
- Persistent_carbene wikiPageWikiLink Deprotonating.
- Persistent_carbene wikiPageWikiLink Deprotonation.
- Persistent_carbene wikiPageWikiLink Desulfurisation.
- Persistent_carbene wikiPageWikiLink Deuterium.
- Persistent_carbene wikiPageWikiLink Deuteron.
- Persistent_carbene wikiPageWikiLink Diazomethane.
- Persistent_carbene wikiPageWikiLink Dihedral_angle.
- Persistent_carbene wikiPageWikiLink Dihydroimidazol-2-ylidene.
- Persistent_carbene wikiPageWikiLink Dihydroimidazole.
- Persistent_carbene wikiPageWikiLink Dihydroimidazolium.
- Persistent_carbene wikiPageWikiLink Dimer_(chemistry).
- Persistent_carbene wikiPageWikiLink Dimethyl_sulfoxide.
- Persistent_carbene wikiPageWikiLink Dimsyl_sodium.
- Persistent_carbene wikiPageWikiLink Divalent.
- Persistent_carbene wikiPageWikiLink Double_bond.
- Persistent_carbene wikiPageWikiLink Electron-donating_group.
- Persistent_carbene wikiPageWikiLink Electron-withdrawing_group.