%0 Journal Article %T 1,1′-[(5-Hydroxymethyl-1,3-phenylene)bis(methylene)]dipyridin-4(1H)-one monohydrate %A José %A A. Fernandes %A Manuela E. L. Lago %A Sandrina Silva %A Joã %A o P. C. Tomé %J Acta Crystallographica Section E %D 2011 %I International Union of Crystallography %R 10.1107/s1600536811024809 %X The asymmetric unit of the title compound, C19H18N2O3, comprises a whole organic dipyridinone molecule plus a water molecule of crystallization. The planes of the pyridinone rings are approximately perpendicular with the plane of the central aromatic ring [dihedral angles = 80.68 (8) and 83.65 (8)¡ã]. The C¡ªO bond of the hydroxy group subtends an angle of 31.71 (10)¡ã with the plane through the central aromatic ring. The crystal packing is mediated by the presence of several O¡ªH...O hydrogen-bonding interactions and while the water molecules form a C21(4) chain parallel to the c axis of the unit cell, the pendant hydroxy groups are engaged in O¡ªH...O=C hydrogen bonds described by a C11(12) graph-set motif which runs parallel to the a axis. %U http://scripts.iucr.org/cgi-bin/paper?S1600536811024809