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# MILLIMETER AND SUBMILLIMETER SPECTROSCOPY OF CCH, $CO^{+}, {HN_{2}}^{+}, HCO^{+ \ast}$

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/29043

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 Title: MILLIMETER AND SUBMILLIMETER SPECTROSCOPY OF CCH, $CO^{+}, {HN_{2}}^{+}, HCO^{+ \ast}$ Creators: Sastry, K. V. L. N.; Helminger, Paul; Charo, Arthur A.; Herbst, E.; De Lucia, Frank C. Issue Date: 1982 Abstract: We have observed a number of transitions of the short-lived radical CCH as well as the molecular ions $CO^{+}, {HN_{2}}^{+}$, and $HCO^{+}$ by means of millimeter and submillimeter wave spectroscopic techniques. Accurate spectroscopic parameters have been calculated from these data. CCH was first identified in the gas phase by Tucker, Kutner, and $Thaddeus^{1}$ using radioastronomical techniques. Our work represents the first $reported^{2}$ microwave spectroscopic detection of this species. For the detection of CCH and other elusive laboratory species, we find the spectral region around 300 GHz to be optimum. URI: http://hdl.handle.net/1811/29043 Other Identifiers: 1982-TB-6