Acta Cryst. (2007). C63, o723-o725  [ doi:10.1107/S0108270107052535 ]

Weak C-HNC hydrogen bonds in the structures of two poly(cyano)-substituted ring systems

P. G. Jones, H. Hopf, C. Mlynek and V. N. Swaminathan

Formula: C₉H₃N₃ and C₂₀H₁₂N₄

Online 14 November 2007

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