# Towards ab initio rovibrational energy structure of HOCO

Abstract : Hydrocarboxyl radical, HOCO, plays an important role in the reaction between hydroxyl radical and carbon monoxid, HO+CO$\rightarrow$H+CO$_2$, which is considered to be the most common source for atmospheric depletion of OH. Our primary interest in HOCO arises from the new spectroscopic information [J. Chem. Phys. 134, 174303 (2011)], providing gas phase spectra of the cis-conformer for the first time. In the present work, the potential energy surface (PES) for HOCO for the ground electronic state (X$^2A^{\prime}$) was explored by means of the partially spin adapted coupled cluster RCCSD(T) method using the cc-pVQZ basis set. Ab initio calculations were designed such to cover the range of spectroscopic interest.The PES will be used in the vibrational and rovibrational calculations.
Document type :
Poster communications
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https://hal-upec-upem.archives-ouvertes.fr/hal-00839991
Contributor : Mirjana Mladenovic <>
Submitted on : Monday, July 1, 2013 - 12:37:59 PM
Last modification on : Thursday, July 18, 2019 - 4:36:05 PM

### Identifiers

• HAL Id : hal-00839991, version 1

### Citation

M. Mladenovic. Towards ab initio rovibrational energy structure of HOCO. AMOC 2012, Anharmonicity in medium-sized molecules and clusters, Apr 2012, Champs sur Marne, France. pp.1, 2012. ⟨hal-00839991⟩

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