A theoretical study on the mechanism of the addition reaction between cyclopropenylidene and ethylene

• XIAO JUN TAN ^[1] ; ZHEN LI ^[3] ; QIAO SUN ^[3] ; PING LI ^[2] ; WEIHUA WANG ^[2] ; GUORONG WANG ^[1]
  1. [1] University of Jinan

     University of Jinan

     China

     
  2. [2] Qufu Normal University

     Qufu Normal University

     China

     
  3. [3] The University of Queensland Australian Institute for Bioengineering and Nanotechnology

  Mostrar afiliaciones +
• Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 57, Nº. 2, 2012, págs. 1174-1177
• Idioma: inglés
• Enlaces
  • Texto completo
• Resumen

  • The reaction mechanism between cyclopropenylidene and ethylene has been systematically investigated employing the MP2/6-311+G* level of theory to better understand the cyclopropenylidene reactivity with unsaturated hydrocarbons. Geometry optimization, vibrational analysis, and energy property for the involved stationary points on the potential energy surface have been calculated. Energies of all the species are also further refined by the CCSD(T)/6-311+G* single-point calculations. Firstly, one important reaction intermediate (INTa) has been located via a transition state (TSa). After that, the common intermediate (INTb) for the two pathways (1) and (2) has been formed via TSb. At last, two different products possessing three- and four-membered ring characters have been obtained through two reaction pathways. In the reaction pathway (1), a three-membered ring alkyne compound has been obtained. As for the reaction pathway (2), a four-membered ring conjugated diene compound has been formed, which is the most favorable reaction to occur from the kinetic and thermodynamic viewpoints.