Abstract
In the title compound, C17H17N3O3 .0.5H2O, the indazole system makes a dihedral angle of 46.19 (8)° with the plane through the benzene ring and is nearly perpendicular to the allyl group, as indicated by the dihedral angle of 81.2 (3)°. In the crystal, the water molecule, disordered over two sites related by an inversion center, forms O—H⋯N bridges between indazole N atoms of two sulfonamide molecules. It is also connected via N—H⋯O interaction to the third sulfonamide molecule; however, due to the water molecule disorder, only every second molecule of sulfonamide participates in this interaction. This missing interaction results in a slight disorder of the sulfonamide S,O and N atoms which are split over two sites with half occupancy. With the help of C–H⋯O hydrogen bonds, the molecules are further connected into a three-dimensional network.
Highlights
In the title compound, C17H17N3O3.0.5H2O, the indazole system makes a dihedral angle of 46.19 (8) with the plane through the benzene ring and is nearly perpendicular to the allyl group, as indicated by the dihedral angle of 81.2 (3)
The water molecule, disordered over two sites related by an inversion center, forms O—H N bridges between indazole N atoms of two sulfonamide molecules
It is connected via N—H O interaction to the third sulfonamide molecule; due to the water molecule disorder, only every second molecule of sulfonamide participates in this interaction. This missing interaction results in a slight disorder of the sulfonamide S,O and N atoms which are split over two sites with half occupancy
Summary
The water molecule, disordered over two sites related by an inversion center, forms O—H N bridges between indazole N atoms of two sulfonamide molecules. It is connected via N—H O interaction to the third sulfonamide molecule; due to the water molecule disorder, only every second molecule of sulfonamide participates in this interaction. This missing interaction results in a slight disorder of the sulfonamide S,O and N atoms which are split over two sites with half occupancy. H O hydrogen bonds, the molecules are further connected into a three-dimensional network
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