Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 11 (November 2012)


organic compounds



bv2212 scheme

Acta Cryst. (2012). E68, o3239    [ doi:10.1107/S1600536812044017 ]

5,7,8,10,11,13,14,16-Octahydro-6,15-(ethanoxyethanoxyethano)-1,4:17,20-dietheno[9,12,6,15]benzodioxadiazacyclodocosine

H. A. Barnett, F. R. Fronczek and S. F. Watkins

Abstract: The title compound, C32H40N2O4, is a 1,10-diaza-18-crown-6 cryptand with an o-terphenyl bridge. In the polyether ring, two adjacent -CH2- groups are disordered with very nearly equal populations of two conformers. The ordered bond lengths are normal, with average C-C = 1.511 (3) Å, C-O = 1.421 (3) Å, and C-N = 1.466 (4) Å. The r.m.s. deviations of the three rings of the terphenyl bridge vary from 0.007 to 0.009 Å and the two rings ortho to one another are twisted by 50.75 (5) and 47.76 (4)° with respect to the third ring. The N...N distance is 5.408 (1) Å.


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