1.
Acta Crystallogr E Crystallogr Commun
; 72(Pt 12): 1751-1753, 2016 Dec 01.
Artículo
en Inglés
| MEDLINE
| ID: mdl-27980822
RESUMEN
In the title compound, C15H18N2O3, the coumarin ring is essentially planar, with an r.m.s. deviation of 0.012â Å. An intra-molecular O-Hâ¯N hydrogen bond forms an S(6) ring motif. The piperazine ring adopts a chair conformation. In the crystal, a C-Hâ¯O hydrogen bond generates a C(4) chain motif running along the c axis. The chain structure is stabilized by a C-Hâ¯π inter-action. The chains are linked by π-π inter-actions [centroid-centroid distance of 3.5745â (11)â Å], forming a sheet structure parallel to the bc plane.