Knowledge Bank

Mass selected resonance enhanced photodissociation spectroscopy is utilized to rotationally resolve the $(2,0,0)\leftarrow (0,0,0)$ vibronic member of the $\mathrm{<mrow\; data-mjx-texclass="ORD">2</mrow>}\Pi \leftarrow X \mathrm{<mrow\; data-mjx-texclass="ORD">2</mrow>}\Sigma$ electronic transition in $Ca+-NN$. The $Ca+-NN$ molecule is formed in a pulsed nozzle/laser vaporization cluster source, and rotationally resolved spectra are recorded by monitoring the $Ca+$ channel as a function of photodissociation laser wavelength. Spectra are recorded for the molecules $Ca+-\mathrm{<mrow\; data-mjx-texclass="ORD">14</mrow>}N\mathrm{<mrow\; data-mjx-texclass="ORD">14</mrow>}N$ and $Ca+-\mathrm{<mrow\; data-mjx-texclass="ORD">15</mrow>}N\mathrm{<mrow\; data-mjx-texclass="ORD">15</mrow>}N$ allowing for determination of both the $Ca+N$ and N-N bond Lengths in the complex. Preliminary results indicate that the and bond length is approximately 2.74 {\AA} in the ground state and 2.48 {\AA} in the excited state, while the N-N bond length remains approximately that of free nitrogen.