# THE $A {^{2}}\Pi - X {^{2}}\Sigma^{+}$ NEAR INFRARED ABSORPTION SPECTRUM OF $HC_{2}$ ISOLATED IN SOLID ARGON

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/16943

Files Size Format View
1986-MG'-04.jpg 120.3Kb JPEG image

 Title: THE $A {^{2}}\Pi - X {^{2}}\Sigma^{+}$ NEAR INFRARED ABSORPTION SPECTRUM OF $HC_{2}$ ISOLATED IN SOLID ARGON Creators: Jacox, Marilyn E. Issue Date: 1986 Publisher: Ohio State University Abstract: A consistently good yield of the $HC_{2}$ free radical has been obtained when an $Ar: C_{2}H_{2}$ mixture is codeposited at 12-14 K with a beam of argon atoms excited in a microwave discharge. Using these conditions and the DA3.002 interferometer operated at $0.2 cm^{-1}$ resolution, the $A {^{2}}\Pi - X {^{2}}\Sigma^{+}$ band system of $HC_{2}{^{1,2}}$ has been observed in absorption between 3800 and $7500 cm^{-1}$. Detailed observations of the carbon-13 and deuterium-substituted species of $HC_{2}$, which have yielded information on the position of the band origin and on the vibrational energy levels of both the ground and the excited electronic state, will be considered. Description: $^{1}$ P. G. Carrick, A. J. Merer, and R. F. Curl, Jr., J. Chem. Phys. 78, 3652 (1983). $^{2}$ R. F. Curl, P. G. Carrick, and A. J. Merer, J. Chem. Phys. 82, 3479 (1985). Address: Molecular Spectroscopy Division, National Bureau of Standards, Gaithersburg, MD 20899. Author Institution: URI: http://hdl.handle.net/1811/16943 Other Identifiers: 1986-MG'-4