Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2012 May 1;68(Pt 5):o1569.
doi: 10.1107/S1600536812018211. Epub 2012 Apr 28.

25,26-Bis(propan-2-yl-idene)hepta-cyclo[20.2.1.1(10,13).0(2,21).0(3,8).0(9,14).0(15,20)]hexa-cosa-2(21),3,5,7,9(14),11,15,17,19,23-deca-ene

Stefan M Cooper  1 , Tamara R Schaller Nauman, Frank R Fronczek, Steven F Watkins
Affiliations

25,26-Bis(propan-2-yl-idene)hepta-cyclo[20.2.1.1(10,13).0(2,21).0(3,8).0(9,14).0(15,20)]hexa-cosa-2(21),3,5,7,9(14),11,15,17,19,23-deca-ene

Stefan M Cooper et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

In the title compound, C(32)H(28), the central cyclo-octa-tetra-ene ring has a boat conformation, and the mol-ecule is saddle shaped. The seat is defined by the mean plane of the four-atom attachment points (r.m.s. deviation = 0.014 Å) of the two bicyclo-heptenyl substituents. These substituents comprise the pommel and cantle, with each mean plane defined by four atoms proximate to the seat (r.m.s. deviations = 0.002 and 0.004 Å). Relative to the seat, the pommel and cantle bend up 31.16 (4) and 29.40 (5)°, while the benzo units (flaps, r.m.s. deviations = 0.006 and 0.009 Å) bend down 36.75 (4) and 38.46 (4)°. The mean planes of the dimethyl-ethyl-idene units are almost perpendicular to the saddle seat, making dihedral angles 86.89 (4) and 88.01 (4)°.

PubMed Disclaimer

Figures

Fig. 1.
Fig. 1.
View of (I) (50% probability displacement ellipsoids)
See this image and copyright information in PMC

References

    1. Durr, H., Klauck, G., Peters, K. & von Schnering, H. G. (1983). Angew. Chem. 95, 321–323.
    1. Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565.
    1. Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838.
    1. Nonius (2000). COLLECT Nonius BV, Delft, The Netherlands.
    1. Otwinowski, Z. & Minor, W. (1997). Methods in Enzymology, Vol. 276, Macromolecular Crystallography, Part A, edited by C. W. Carter Jr & R. M. Sweet, pp. 307–326. New York: Academic Press.