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\newcommand { \LCPQ } { Laboratoire de Chimie et Physique Quantiques (UMR 5626), Universit\' e de Toulouse, CNRS, UPS, France}
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\begin { document}
\title { G2 Atomization Energies With Chemical Accuracy}
\author { Bath\' elemy Pradines}
\affiliation { \LCPQ }
\author { Anthony Scemama}
\affiliation { \LCPQ }
\author { Julien Toulouse}
\affiliation { \LCT }
\author { Pierre-Fran\c { c} ois Loos}
\email [Corresponding author: ] { loos@irsamc.ups-tlse.fr}
\affiliation { \LCPQ }
\author { Emmanuel Giner}
\affiliation { \LCT }
\begin { abstract}
\end { abstract}
\maketitle
%%%%%%%%%%%%%%%%%%%%%%%%
\section { Introduction}
%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%
\section { Results}
%%%%%%%%%%%%%%%%%%%%%%%%
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\subsection { The case of C$ _ 2 $ and the comparison with the F$ _ { 12 } $ methods.}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin { table*}
\caption { Dissociation energy ($ D _ e $ ) in kcal/mol of the C$ _ 2 $ molecule computed using FCIQMC, CIPSI, FCIQMC+F$ _ { 12 } $ , CIPSI+LDA$ _ { \rm HF } $ and CIPSI+LDA$ _ { \text { HF - FC } } $ (frozen core interaction and density) in the Dunnng cc-pVXZ (VXZ) basis sets.}
\begin { ruledtabular}
\begin { tabular} { lccccc}
%\hline
& FCIQMC & CIPSI & FCIQMC+F$ _ { 12 } $ & CIPSI+LDA$ _ { \text { HF } } $ & CIPSI+LDA$ { _ \text { HF - FC } } $ \\
\hline
V2Z & 130.0 & 132.0 & 142.3 & 141.9 & 140.9 \\
V3Z & 139.9 & 140.3 & 145.3 & 142.8 & 145.1 \\
V4Z & - & 143.6 & - & 145.8 & 146.3 \\
V5Z & - & 144.3 & - & 145.1 & 146.1 \\
%\hline
& \multicolumn { 5} { c} { Estimated exact} \\
& \multicolumn { 5} { c} { 146.9} \\
\end { tabular}
\end { ruledtabular}
\label { conv_ He_ table}
\end { table*}
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%
\bibliography { Ex-srDFT}
\end { document}