The microwave spectrum of trans 1-nitropropene |
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Authors: | Robert G Ford |
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Institution: | Department of Chemistry, Memphis State University, Memphis, Tennessee 38152 USA |
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Abstract: | Rotational transitions of 1-nitropropene arising from the ground vibrational state and from three excited states of the nitro torsional vibration have been assigned. The values of the rotational constants in MHz are: A0=10 650B0=2028.56C01722.16A110 615 B1=2028.47 C1=1725.11 A210 570 B2 2028.31 C2= 1727.32 A3= 10 512 B32028.11 C3=1729.37The dipole moment components are μa = 4.52 D, μb = 0.42 D and μtotal = 4.54 D. From the lack of observable internal rotation splittings the barrier to internal rotation of the methyl group is shown to be greater than 2250 cal/mole. |
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