A first-principles study on the quantum tunneling of methylhydroxycarbene isomerization in various solvents

E. D. Susanti, F. Rusydi, I. Puspitasari, R. N. Fadilla, N. D. Aisyah, A. Ahmad

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

Quantum tunneling phenomenon allows a high-barrier reaction to occur even though thermal energy is not sufficient to surmount the barrier. The phenomenon has been suggested to exist in the isomerization of methylhydroxycarbene which occured at 11 K. Here we study the quantum tunneling that occured in the isomerization of methylhydroxycarbene to acetaldehyde and to vinyl alcohol based on density functional calculations. The isomerization pathways are determined under the effect of various solvents which are modeled by polarizable continuum model (PCM). We use Wentzel-Kramers-Brillouin (WKB) approximation to calculate the tunneling probability (T) and extend the usefulness of T into isomerization rate. The results show that the solvents give a significant effect on the isomerization rate of methylhydroxycarbene to acetaldehyde but an insignificant one on the isomerization rate to vinyl alcohol.

Original languageEnglish
Article number012003
JournalJournal of Physics: Conference Series
Volume1568
Issue number1
DOIs
Publication statusPublished - 3 Jul 2020
Event4th Padjadjaran International Physics Symposium 2019, PIPS 2019 - Bandung, West Jawa, Indonesia
Duration: 13 Nov 201914 Nov 2019

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