dc.creator Hayashi, Masato en_US dc.creator Hikida, Toshihide en_US dc.creator Harada, Kensuke en_US dc.creator Tanaka, Keiichi en_US dc.creator Tanaka, Takehiko en_US dc.date.accessioned 2006-06-15T20:44:49Z dc.date.available 2006-06-15T20:44:49Z dc.date.issued 2003 en_US dc.identifier 2003-WH-13 en_US dc.identifier.uri http://hdl.handle.net/1811/21116 dc.description Author Institution: Department of Chemistry, Faculty of Science, Kyushu University 33 en_US dc.description.abstract Rotational spectrum of the CoCO radical generated by ultraviolet photolysis of $Co(CO)_{3}NO$ was measured in the millimeter wave region to determine rotational and hyperfine interaction constants. Rotational transitions ranging from J = 29.5 - 28.5 to 34.5 - 33.5 were assigned in the $\Omega = 3/2$ and $\Omega = 5/2$ spin substates of the $X^{2}\Delta_{i}$ ground vibronic state as well as in the vibrationally excited states $\nu_{2}, \nu_{3}$, and $2\nu_{2}$ of the $\Omega = 5/2$ spin substate. Each rotational transition was split into 8 hyperfine components due to the $^{59}Co$ nucleus. Molecular constants, including the rotational constant B, centrifugal distortion constant D, nuclear spin-orbit interaction constant a, Fermi contact interaction constant $b_{F}$, magnetic dipolar interaction constant c, and nuclear quadrupole interaction constant eQq, were determined for the vibrationally ground state by least squares fitting of the observed spectrum. The equilibrium rotational constant $B_{e}$ was determined to be 4435.7510(18) MHz and the internuclear distance between Co and C was evaluated to be $1.688 \AA$. The a and c values are consistent with the values estimated from the hyperfine constants of the $^{59}Co$ atom. The $b_{F}$ value is nearly equal to zero. en_US dc.format.extent 248828 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title MILLIMETER WAVE SPECTRUM OF $CoCO(X^{2}\Delta_{i})$ IN THE GROUND AND VIBRATIONALLY EXCITED STATES en_US dc.type article en_US
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