\begin{table}%[htb]%t8
%\centering
\par
\caption{Geometric properties for the two dimers using the
B3LYP/6-311++G* (Numbers 1 and 2 in parentheses
represent two CO$_2$ molecules).\label{co2_bonds}}
\begin{tabular}{c c c}\hline\hline
 	& "Slipped"	& "Constrained linear" \\
\hline
Distances (\AA):		 \\
C-O (1)	& 1.1613	& 1.1606 \\
C-O (1)	& 1.1602	& 1.1606 \\
C-O (2)	& 1.1616	& 1.1608 \\
C-O (2)	& 1.1598	& 1.1608 \\
Intermolecular	& 3.1828	& 3.1884 \\
\hline 
Angles (degrees):		 \\
O(1)C(1)O(2)	& 84.1	& 90.0 \\
C(2)O(2)C(1)	& 138.5	& 180.0 \\
\hline 
{\it HF} Energies	& --377.2947	& --377.2946 \\
(Atomic Units)		 \\
\hline
\end{tabular}
\end{table}