The molecular and supramolecular structures of the isomeric compounds 5,7-di­methoxy­imidazo­[1,2-c]­pyrimidine and 7-methoxy-1-methyl­imidazo­[1,2-a]­pyrimidin-5(1H)-one

Bueno, J.; Melguizo, M.; Quijano, M.L.; Low, J.N.

doi:10.1107/S0108270103010266

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 4
View of the part of the sheet structure formed in (II

) by two antiparallel C(6) chains linked by centrosymmetric R₂²(10) and R₄⁴(22) rings. Atoms marked with an asterisk (*), hash (#), ampersand (&), dollar sign ($) or `at' sign (@) are at the symmetry positions (x, $[3 \over 2]$ − y, ½ + z), (1 − x, 1 − y, 1 − z), (1 − x, −½ + y, $[3 \over 2]$ − z), (x, y, 1 + z) and (1 − x, 1 − y, 2 − z), respectively.

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 59| Part 7| June 2003| Pages o363-o366

doi:10.1107/S0108270103010266

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