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LASER SPECTROSCOPY OF NICKEL CYANIDE, NiCN, IN THE VISIBLE REGION

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/20005

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Title: LASER SPECTROSCOPY OF NICKEL CYANIDE, NiCN, IN THE VISIBLE REGION
Creators: Kingston, C. T.; Merer, A. J.; Varberg, Thomas D.
Issue Date: 2001
Abstract: The electronic spectrum of NiCN has been observed in the visible region following the reaction of laser-ablated nickel with either $(CN)_{2}$ or $CH_{3}CN$ under supersonic jet-cooled conditions. High resolution LIF experiments have shown that the ground state is $^{2}\Delta_{5/2}$, with $B_{0} = 0.1444334(30) cm^{-1}$; using data taken with $CH_{3}C^{15}N$, the bond lengths are found to be $r_{0} (Ni-C) = 1.8292(37) \AA$ and $r_{0} (C-N) = 1.1591(52) \AA$. The vibrational structure of the ground state is an excellent example of strong Fermi resonance. Four excited electronic states have been identified. They are assigned as $\tilde{A}^{2}\Delta_{5/2}$ at $16607 cm^{-1}$, $\tilde{B}^{2}\Pi_{3/2}$ at $16686 cm^{-1}$, $\tilde{C}^{2}\Phi_{7/2}$ at $17813 cm^{-1}$ and $\tilde{D}^{2}\Phi_{5/2}$ at $19129 cm^{-1}$. The electronic structure of NiCN turns out to be remarkably similar to that of $NiH^{a}$.
URI: http://hdl.handle.net/1811/20005
Other Identifiers: 2001-FC-01
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