Four 7-ar­yl-substituted pyrido[2,3-d]pyrimidine-2,4(1H,3H)-diones: similar mol­ecular structures but different crystal structures

Trilleras, J.; Quiroga, J.; Cobo, J.; Hursthouse, M.B.; Glidewell, C.

doi:10.1107/S0108270109005514

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 10
A stereoview of part of the crystal structure of XEBCUD (Wang et al., 2006

), showing the formation of a chain of hydrogen-bonded R₂²(8) and R₂²(16) rings. The original atom coordinates have been employed and, for the sake of clarity, H atoms not involved in the motifs shown have been omitted, as have the dimethylformamide molecules.

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 65| Part 4| March 2009| Pages o134-o139

doi:10.1107/S0108270109005514

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