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MULTIPLE $n\Pi^{*}$ TRANSITIONS IN TETRAMETHYL–1, 3-CYCLOBUTANEDIONE

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dc.creator Spafford, Ralph en_US
dc.creator Wrobel, Joseph en_US
dc.creator Baiardo, Joseph en_US
dc.creator Vala, Martin en_US
dc.date.accessioned 2006-06-15T13:37:03Z
dc.date.available 2006-06-15T13:37:03Z
dc.date.issued 1975 en_US
dc.identifier 1975-MF-11 en_US
dc.identifier.uri http://hdl.handle.net/1811/9275
dc.description $^{1}$J. R. Swenson and R. Hoffman, Helv. Chim. Acta 53, 2331 (1970). This research was supported by the National Science Foundation."" en_US
dc.description Author Institution: Department of Chemistry, University of Florida en_US
dc.description.abstract The polarized single crystal absorption spectrum of the cyclic diketone tetramethyl-1, 3-cyclobutanedione has been obtained in the near ultraviolet region (3700 -- 2600 \AA) at liquid helium temperatures. Four distinct n-$\Pi^{*}$ transitions are observed in the singlet manifold, experimentally verifying the $predicted^{1}$ strong interaction of the carbonyl groups. Spectral assignments have been made, clearly showing that the excited singlet states are distorted from the planar ground state geometry. The band assignments, excited state geometries, and nature of the ``through-bond” interaction will be discussed. en_US
dc.format.extent 99650 bytes
dc.format.mimetype image/jpeg
dc.language.iso English en_US
dc.title MULTIPLE $n\Pi^{*}$ TRANSITIONS IN TETRAMETHYL–1, 3-CYCLOBUTANEDIONE en_US
dc.type article en_US