Zusammenfassung:
<jats:title>Abstract</jats:title>
<jats:p> The mm-wave spectra of <jats:sup>15</jats:sup>N<jats:sup>18</jats:sup> O and <jats:sup>14</jats:sup>N <jats:sup>17</jats:sup> O in both X<jats:sup>2</jats:sup> Π<jats:sub>1/2 </jats:sub>and X<jats:sup>2</jats:sup> Π<jats:sub>3/2</jats:sub> states have been measured and assigned for the first time. Improved rotational and, for the first time, <jats:sup>17</jats:sup>O hyperfine coupling constants have been derived from the analysis. The <jats:sup>14</jats:sup>N<jats:sup>17</jats:sup> O data yield parameters of the unpaired electron spatial distribution near both nuclei. Furthermore, the deviation from the Born-Oppenheimer approximation is confirmed on the basis of the rotational constants of five isotopomers. Finally, when comparing the nuclear spin-rotation constants to the ones of other molecules containing <jats:sup>14</jats:sup>N or <jats:sup>17</jats:sup>O nuclei, a roughly linear proportionality with the rotational constant B is found.</jats:p>
Beschreibung:
<jats:title>Abstract</jats:title>
<jats:p> The mm-wave spectra of <jats:sup>15</jats:sup>N<jats:sup>18</jats:sup> O and <jats:sup>14</jats:sup>N <jats:sup>17</jats:sup> O in both X<jats:sup>2</jats:sup> Π<jats:sub>1/2 </jats:sub>and X<jats:sup>2</jats:sup> Π<jats:sub>3/2</jats:sub> states have been measured and assigned for the first time. Improved rotational and, for the first time, <jats:sup>17</jats:sup>O hyperfine coupling constants have been derived from the analysis. The <jats:sup>14</jats:sup>N<jats:sup>17</jats:sup> O data yield parameters of the unpaired electron spatial distribution near both nuclei. Furthermore, the deviation from the Born-Oppenheimer approximation is confirmed on the basis of the rotational constants of five isotopomers. Finally, when comparing the nuclear spin-rotation constants to the ones of other molecules containing <jats:sup>14</jats:sup>N or <jats:sup>17</jats:sup>O nuclei, a roughly linear proportionality with the rotational constant B is found.</jats:p>