Nucleophilicities of the simplest saturated and unsaturated hydrocarbons

Nucleophilicities N of prototype saturated and unsaturated hydrocarbons methane, ethane, cyclopropane, ethyne and ethene when acting as Lewis bases were determined from the dissociation energies D of the hydrogen-bond complexes B…HX calculated ab initio, where B is the hydrocarbon and HX is variousl...

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Detalhes bibliográficos
Autores: Alkorta, Ibon, Legon, A.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/341936
Acesso em linha:http://hdl.handle.net/10261/341936
Access Level:acceso abierto
Palavra-chave:Hydrogen bond
Nucleophilicity
Inductive effect
Simple hydrocarbons as H-bond acceptors
Descrição
Resumo:Nucleophilicities N of prototype saturated and unsaturated hydrocarbons methane, ethane, cyclopropane, ethyne and ethene when acting as Lewis bases were determined from the dissociation energies D of the hydrogen-bond complexes B…HX calculated ab initio, where B is the hydrocarbon and HX is variously HF, HCl, HBr, HI, HCN, HCCH and HCP. The values of N obtained were 0.712(31), 0.736(32), 0.283(44), 2.561(73), 2.604(51) for methane, ethane, cyclopropane, ethyne and ethene, respectively. The inductive effect of the methyl group when ethyne is methylated was also investigated.