# MICROWAVE SPECTRUM OF TRANS-BUTADIENE MONOXIDE

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 Title: MICROWAVE SPECTRUM OF TRANS-BUTADIENE MONOXIDE Creators: Ikeda, Tatsuya; Sastry, K. V. L. N.; Curl, R. F., Jr. Issue Date: 1974 Publisher: Ohio State University Abstract: Th emicrowave spectrum of butadiene monoxide has been studied in the region 26.5 - 40.0 GHz. About 200 transitions of the types$^{(a)}$R, $^{(b)} Q$ $^{(b)}$R, $^{(b)}$P, $^{(c)}$Q, and $^{(c)} R$ have been assigned up to $J = 35$. From these the rotational constants and the centrifugal distortion constants (4th and 6th order) were determined. The rotational constants are (in MHz); $A = 17367.28$, $B = 3128.22$, $C = 3043.69$. Stark effect measurements gave $\mu_{a} = 0.99D$, $\mu_{b} = 1.58D$, $\mu_{c}=0.73D$, $\mu = 2.00D$. The rotational constants and the components of the dipole moment clearly indicate that the assigned conformer is the trans form, and this seems to be the predominant species at dry ice temperature. Description: Author Institution: Department of Chemistry, Rice University URI: http://hdl.handle.net/1811/16273 Other Identifiers: 1974-MF-11