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ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE, vol.64, 2008 (SCI-Expanded)
In the molecule of the title compound, C13H16N2O2, the phthalide ring system is virtually planar, with a dihedral angle between the fused five- and six-membered rings of 1.17 (4)degrees. The methylpiperazine ring adopts a chair conformation. In the crystal structure, intermolecular C-H center dot center dot center dot O and C-H center dot center dot center dot N hydrogen bonds link the molecules, generating edge-fused R-3(3)( 17) ring motifs, to form a three-dimensional network.