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Structures of two sterically crowded molecular propeller systems

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Abstract

The crystal structures of two molecular propellers are described. Enol phosphate 1 is triclinic P 1¯ with a = 10.1110(4), b = 12.0647(6), c = 14.2112(7) Å; α = 96.421(3), β = 98.633(3), γ = 108.594(2)° and Z = 2. Enol phosphinate 2 is monoclinic P21/n with a = 13.527(3), b = 11.980(2), c = 17.326(3) Å, β = 98.616(9),° and Z = 4. Data from dynamic NMR investigations are in agreement with the size of the aryl torsion angles in the two enol propellers.

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Authors and Affiliations

  1. Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074, Würzburg, Germany

    Armin Burghart & Michael Schmittel

  2. Institute of Organic Chemistry and Biochemistry, University of Freiburg, Albertstr. 21, 79104, Freiburg, Germany

    Manfred Keller

Authors
  1. Armin Burghart
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  2. Michael Schmittel
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  3. Manfred Keller
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Burghart, A., Schmittel, M. & Keller, M. Structures of two sterically crowded molecular propeller systems. Journal of Chemical Crystallography 29, 421–427 (1999). https://doi.org/10.1023/A:1009563026959

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