All Figures

$\begin{figure} \par\includegraphics[width=7.3cm,clip]{bending_co2.eps}\end{figure}$ Figure 1: Observed splitting of the CO₂ bending mode at 15.2 $\mu$ m (Dartois et al. 1999b).
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In the text

$\begin{figure} \includegraphics[width=\columnwidth,clip]{conformations.eps}\end{figure}$ Figure 2: Stick representation of the four possible conformations of the complex: top-left: "vertical staggered", top-right: "vertical Eclipsed", bottom-left: "horizontal staggered", bottom-right: "horizontal eclipsed". The staggered/eclipsed conformations are defined relative to methanol hydrogens. Eclipsed means that the alcoholic hydrogen lies in the plane defined by the methanol CO and one of the three methylic hydrogens. Staggered conformations occur after rotations of $\pi$ /3 from the eclipsed conformations of the methyl group.
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In the text

$\begin{figure} \par\includegraphics[width=8cm,clip]{vdx1.eps}\end{figure}$ Figure 3: Ball representation of the most stable conformer of CO₂:CH₃OH complex (face on and edge on views).
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In the text

$\begin{figure} \par\includegraphics[width=\columnwidth,clip]{comp1.eps}\par\end{figure}$ Figure 4: A comparison between the computed spectra of the methanol monomer ( top panel) and the complex CO₂:CH₃OH ( middle panel). Bottom panel is a close up of the middle one, for the very low frequencies, showing the five complex specific bands and especialy the strongests near 24 and 75 cm^-1.
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In the text

$\begin{figure} \par\includegraphics[width=\columnwidth,clip]{bending1.eps}\end{figure}$ Figure 5: The in-plane ( top) and OOP ( bottom) bending modes of CO₂ complexed verticaly to the staggered methanol at B3LYP/6-311++G** level (see Fig. 2 for conformation definitions). Dotted lines show direction atoms move when vibrating. IR intensities are indicated in parenthesis.
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In the text

$\begin{figure} \par\includegraphics[width=8cm,clip]{vdx2.eps}\end{figure}$ Figure 6: Ball representation of the most stable conformer of CH₃OH:CO₂:CH₃OH complex. Different views of two methanols complexing to a central CO₂ molecule.
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In the text

$\begin{figure} \par\includegraphics[width=8.5cm,clip]{vd2.eps}\end{figure}$ Figure 7: A close-up of the calculated CO₂ splitting at B3LYP/6-311++G** level and comparison with an experimental ice analogue. It shows the maximum splitting of the trimer as well as the dimer.
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In the text

$\begin{figure} \par\includegraphics[width=\columnwidth]{meoh1.eps}\end{figure}$ Figure 8: Computed methanol spectra (monomer and dimer) and comparison with experimental gas and solid phase spectra.
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In the text

$\begin{figure} \par\includegraphics[width=7.3cm,clip]{bending_co2.eps}\end{figure}$	Figure 1: Observed splitting of the CO₂ bending mode at 15.2 $\mu$ m (Dartois et al. 1999b).
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$\begin{figure} \par\includegraphics[width=8cm,clip]{vdx1.eps}\end{figure}$	Figure 3: Ball representation of the most stable conformer of CO₂:CH₃OH complex (face on and edge on views).
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$\begin{figure} \par\includegraphics[width=\columnwidth,clip]{comp1.eps}\par\end{figure}$	Figure 4: A comparison between the computed spectra of the methanol monomer ( top panel) and the complex CO₂:CH₃OH ( middle panel). Bottom panel is a close up of the middle one, for the very low frequencies, showing the five complex specific bands and especialy the strongests near 24 and 75 cm^-1.
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$\begin{figure} \par\includegraphics[width=\columnwidth,clip]{bending1.eps}\end{figure}$	Figure 5: The in-plane ( top) and OOP ( bottom) bending modes of CO₂ complexed verticaly to the staggered methanol at B3LYP/6-311++G** level (see Fig. 2 for conformation definitions). Dotted lines show direction atoms move when vibrating. IR intensities are indicated in parenthesis.
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$\begin{figure} \par\includegraphics[width=8cm,clip]{vdx2.eps}\end{figure}$	Figure 6: Ball representation of the most stable conformer of CH₃OH:CO₂:CH₃OH complex. Different views of two methanols complexing to a central CO₂ molecule.
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$\begin{figure} \par\includegraphics[width=8.5cm,clip]{vd2.eps}\end{figure}$	Figure 7: A close-up of the calculated CO₂ splitting at B3LYP/6-311++G** level and comparison with an experimental ice analogue. It shows the maximum splitting of the trimer as well as the dimer.
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$\begin{figure} \par\includegraphics[width=\columnwidth]{meoh1.eps}\end{figure}$	Figure 8: Computed methanol spectra (monomer and dimer) and comparison with experimental gas and solid phase spectra.
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