3-[5-(Pyridin-4-yl)-1,3,4-oxa-diazol-2-yl]-4H-chromen-4-one

摘要

In the title mol-ecule, C16H9N3O3, the plane of oxa-diazole ring is almost coplanar with attached pyridine ring and chromenyl ring system, forming dihedral angles of 2.37?(3) and 6.71?(2)°, respectively. In the crystal, a pair of C—H?O and C—H?N hydrogen-bond inter-actions lead to the formation of dimers, which are linked together into [100] chains.