Search

In the title compound, C12H11NO3, the mol­ecules have two intra­molecular C—H⋯O hydrogen bonds that define an S(6) S(5) pattern. The mol­ecules are linked by N—H⋯O hydrogen bonds into a centrosymmetric dimer. These dimers are linked by further C—H⋯O hydrogen bonds, so forming a [100] ribbon of R22(8) R44(18)[ R44(20)] rings, a [1 ] chain of alternating R22(8) and R22(22) rings, and an [010] complex chain of R42(18) rings. The combination of the [100] ribbon, the [1 ] chain and the [010] chain results in the formation of a three-dimensional network structure. [ABSTRACT FROM AUTHOR]

In the title compound, C19H24N2O42+·2Cl−, the cation has mirror symmetry. The ions are linked by N—H⋯Cl and C—H⋯Cl hydrogen bonds into a [01 ] chain with an S21(7) S21(7) R42(14)[ R42(24)] motif, and into a [011] chain with an S21(7) R42(14)[ R42(18)] motif. [ABSTRACT FROM AUTHOR]

In the title compound, C10H9NO4, the 2-oxo-3,4-dihydro-1,4-benzoxazine unit is not planar. Adjacent molecules are linked together to form a two-dimensional supramolecular structure through C—H...O and O—H...O hydrogen bonding. [ABSTRACT FROM AUTHOR]