Journal of Molecular Structure p. 145 - 151 (2001)
Update date:2022-08-30
Topics:
Buchanan, Gerald W.
Azad, Mastaneh
Yap, Glenn P. A.
Benzo-11-crown-3 ether trimerizes in the presence of FeCl3 and aqueous H2SO4 to produce tris(11-crown-3)triphenylene. This compound crystallizes, along with a molecule of diethyl ether and CH2Cl2 in the triclinic P1? space group; a = 8.8913(9) ?, b = 13.5790(14) ?, c = 17.5244(17) ?, β = 91.026(2)°, with Z = 2. Two of the three 11-crown-3 ether units of the trimer possess essentially identical geometries, while the third has a significantly different conformation. These stereochemical results are compared to those calculated for benzo-11-crown-3 in the gas phase.
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