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In the title compound, C 27 H 30 N 4 O 6 ·H 2 O, the two dioxolo rings are in envelope conformations, while the pyran ring is in a twisted-boat conformation. The pyradizine ring is oriented at dihedral angles of 9.23 (6) and 12.98 (9)° with respect to the pyridine rings, while the dihedral angle between the two pyridine rings is 13.45 (10)°. In the crystal, O-H water ⋯O pyran , O-H water ⋯O meth-oxy-meth-yl and O-H water ⋯N pyridazine hydrogen bonds link the mol-ecules into chains along [010]. In addition, weak C-H dioxolo ⋯O dioxolo hydrogen bonds and a weak C -H meth-oxy-meth-yl ⋯π inter-action complete the three-dimensional structure. The Hirshfeld surface analysis of the crystal structure indicates that the most important contributions for the crystal packing are from H⋯H (55.7%), H⋯C/C⋯H (14.6%), H⋯O/O⋯H (14.5%) and H⋯N/N⋯H (9.6%) inter-actions. Hydrogen-bonding and van der Waals inter-actions are the dominant inter-actions in the crystal packing. Electrochemical measurements are also reported.

acta crystallographica. section e, crystallographic communications

Crystal structure, Hirshfeld surface analysis and corrosion inhibition study of 3,6-bis(pyridin-2-yl)-4-{[(3aS,5S,5aR,8aR,8bS)-2,2,7,7-tetramethyltetrahydro-5H-bis[1,3]dioxolo[4,5-b:4′,5′-d]pyran-5-yl)methoxy]methyl}pyridazine monohydrate