Issue 8, 1976

Crystal and molecular structure of 6,7,9,10,12,13,20,21,23,24,26,27-dodecahydrodibenzo[b,n][1,4,7,10,13,16,19,22]octaoxacyclotetracosin (dibenzo-24-crown-8)

Abstract

The crystal structure of the title compound (I) has been determined from 1 080 diffractometer observations by direct methods. There are two centrosymmetric molecules in a monoclinic unit cell having a= 9.187(2). b= 4.913(2). c= 26.462(5)Å, β= 104.93°, and space group P21/c. Full-matrix refinement of the parameters of all atoms gave R 0.11.

Dimensions of the molecule are compared with those of other macrocyclic ethers and of the complexes of dibenzo-24-crown-8 with a sodium and with a potassium salt. Significant differences are found in the torsion angles, the unusual ones in the uncomplexed molecule are correlated with packing interactions.

Article information

Article type
Paper

J. Chem. Soc., Perkin Trans. 2, 1976, 972-976

Crystal and molecular structure of 6,7,9,10,12,13,20,21,23,24,26,27-dodecahydrodibenzo[b,n][1,4,7,10,13,16,19,22]octaoxacyclotetracosin (dibenzo-24-crown-8)

I. R. Hanson, D. L. Hughes and M. R. Truter, J. Chem. Soc., Perkin Trans. 2, 1976, 972 DOI: 10.1039/P29760000972

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