Acta Crystallographica Section C

Crystal Structure Communications

Volume 60, Part 5 (May 2004)

fg1742 scheme

Acta Cryst. (2004). C60, o321-o324 [doi:10.1107/S0108270104006687]

Two oxazane macrocycles

P. J. Cox and P. Lin

Abstract: The 20-membered ring in 1,7,11,17-tetraoxa-2,6,12,16-tetraazacycloeicosane tetrahydrochloride, C₁₂H₃₂N₄O₄⁴⁺·4Cl^-, adopts an endo conformation, while the 18-membered ring in 1,6,10,15-tetraoxa-2,5,11,14-tetraazacyclooctadecane tetrahydrochloride, C₁₀H₂₈N₄O₄⁴⁺·4Cl^-, lies about an inversion centre and adopts a symmetrical conformation. In the crystal structures of both compounds, the cations and chloride anions are linked by N-HCl hydrogen bonds into planar sheets of molecules; the sheets are linked into three-dimensional networks via C-HCl hydrogen bonds.

Formula: C₁₂H₃₂N₄O₄⁴⁺·4Cl^- and C₁₀H₂₈N₄O₄⁴⁺·4Cl^-

Online 9 April 2004


	Structure factor file (CIF format) (239.5 kbytes) Contains datablock I

	Structure factor file (CIF format) (102.8 kbytes) Contains datablock II

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