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Acta Cryst. (2013). C69, 642-646  [ doi:10.1107/S0108270113010676 ]

N-H...O and N-H...N inter­actions in three pyran derivatives

R. Vishnupriya, J. Suresh, S. Sivakumar and R. R. Kumar

Formula: C19H15N3O3, C19H14FN3O3 and C19H14ClN3O3


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