K. Iijima, Mayu Matsuoka, Takeshi Sakaizumi
Sep 15, 1996
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0
Influential Citations
9
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Journal
Bulletin of the Chemical Society of Japan
Abstract
The molecular structures of two rotational isomers (anticlinal and synperiplanar forms) of gaseous (E)-propionaldehyde oxime have been determined from electron diffraction and microwave spectroscopic data. The anticlinal form is more stable by 0.15 ± 0.10 kcal mol−1 than the synperiplanar form. The molecular parameters of the anticlinal form are rg(C1–C2) = 1.552(3) A, rg(C2–C3) = 1.493(2) A, rg(C3=N) = 1.284(2) A, rg(N–O) = 1.429(2) A, ∠C1C2C3 = 111.5(1)°, ∠C2C3N = 119.0(3)°, and ∠C3NO = 109.4(2)°. The ∠C2C3N, ∠C1C2C3, and rg(C3–N) values of the synperiplanar form (122.6(6)°, 112.6(6)°, and 1.291(3) A, respectively) are not equal to those of the anticlinal form.