Received 8 October 2012
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 NN distance is 5.408 (1) Å.
For the synthesis of the title compound, see: Rossa & Vögtle (1981). For the structure of the NaSCN complex, see: Weber (1981). For a related structure, see: Vögtle et al. (1983). For the synthesis of cryptands, see: Dietrich et al. (1969a,b). For a background to guest-host interactions, see: Dunitz et al. (1974); Cram & Trueblood (1981); Cram (1988).
Data collection: COLLECT (Nonius, 2000); cell refinement: DENZO and SCALEPACK (Otwinowski & Minor, 1997); data reduction: DENZO and SCALEPACK; program(s) used to solve structure: SHELXS86 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BV2212 ).
The purchase of the diffractometer was made possible by grant No. LEQSF(1999-2000)-ENH-TR-13, administered by the Louisiana Board of Regents.
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