Acta Cryst. (2013). E69, o1859-o1860 [ doi:10.1107/S1600536813032212 ]
Abstract: In the title compound, C21H24N2O2Si, the carbonyl group of the heterocyclic ring and the O atom of the silyl ether group are placed toward opposite sides and the tert-butyl and pyridazinone moieties are anti-oriented across the Si-O bond [torsion angle = -168.44 (19)°]. In the crystal, molecules are assembled into inversion dimers through co-operative N-HO hydrogen bonds between the NH groups and O atoms of the pyridazinone rings of neighbouring molecules. The dimers are linked by - interactions involving adjacent pyridazinone rings [centroid-centroid distance = 3.8095 (19) Å], generating ladder-like chains along the b-axis direction. The chains are further linked into a two-dimensional network parallel to the ab plane through weak C-H interactions.
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