Knowledge Bank

This work deals with the modeling of line intensities of cold and hot bands of $\mathrm{<mrow\; data-mjx-texclass="ORD">13</mrow>}$C$\mathrm{<mrow\; data-mjx-texclass="ORD">16</mrow>}$O$2$ corresponding to $\Delta P=5$ transitions ($P=2V1+V2+3V3$), using the effective operators approach.}, 785--801 (1998); J.-L. Teffo, O.M. Lyulin, V.I. Perevalov, and E.I. Lobodenko, J. Mol. Spectrosc. \underline{187}, 28--41 (1998).} In Brussels, 5 unapodized absorption spectra of $\mathrm{<mrow\; data-mjx-texclass="ORD">13</mrow>}$C$\mathrm{<mrow\; data-mjx-texclass="ORD">16</mrow>}$O$2$ (98% purity, $P\times \ell =7.43-538$ mbar$\times$m, room temperature) were recorded at a resolution of $0.0035$ cm$\mathrm{<mrow\; data-mjx-texclass="ORD">-1</mrow>}$ (MOPD $=257.1$ cm) using a Bruker IFS120HR. $382$ absolute line intensities were measured in 9 bands observed between $3090$ and $3920$ cm$\mathrm{<mrow\; data-mjx-texclass="ORD">-1</mrow>}$. In Paris, 2 apodized absorption spectra of an $\mathrm{<mrow\; data-mjx-texclass="ORD">18</mrow>}$O--enriched CO$2$ sample (297.0 K, $\ell =$ 8.07(2) and 36.07(4) m, $P$ = 1.685(8) torr) containing 0.5% of $\mathrm{<mrow\; data-mjx-texclass="ORD">13</mrow>}$C$\mathrm{<mrow\; data-mjx-texclass="ORD">16</mrow>}$O$2$ were recorded at a resolution of 0.0043 cm$\mathrm{<mrow\; data-mjx-texclass="ORD">-1</mrow>}$ using a home--made FTS. 90 absolute line intensities were measured for 5 bands observed from 3400 to 3700 cm$\mathrm{<mrow\; data-mjx-texclass="ORD">-1</mrow>}$. A least squares fit of 479 observed line intensities, including those measured in this work and published for the 21102-00001 band,}, 146--160 (2004).} allowed determination of 12 effective dipole moment parameters corresponding to the $\Delta P=5$ series of transitions (weighted standard deviation $\chi$ = 0.855, RMS deviation = 4.69%). The new set of effective dipole moment parameters will soon be used to update the \emph{Carbon Dioxide Spectroscopic Databank} (CDSD--1000).}, 165--196 (2003); http://cdsd.iao.ru, http://cdsd.lpma.jussieu.fr, ftp://ftp.iao.ru/pub/CDSD-1000.} Results will be presented and discussed.