Abstract
The title compound, C17H19NO4, which is a non-toxic insect growth regulator with the common name fenoxycarb, contains two independent and conformationally different molecules in the asymmetric unit. Although the inter-ring dihedral angles are similar [62.21 (15) and 63.00 (14)°], the side-chain orientations differ. In the crystal, the molecules are linked through N—H⋯O hydrogen-bonding associations, giving chains which extend along [110], while intra- and intermolecular aromatic C—H⋯π interactions give sheet structures parallel to [110].
Highlights
The title compound, C17H19NO4, which is a non-toxic insect growth regulator with the common name fenoxycarb, contains two independent and conformationally different molecules in the asymmetric unit
The molecules are linked through N—H O hydrogen-bonding associations, giving chains which extend along [110], while intra- and intermolecular aromatic C—H interactions give sheet structures parallel to [110]
The onedimensional chains are built into two-dimensional sheets by further C—H···π contacts involving H19···Cg1, H22···Cg1, H2···Cg3 and H5···Cg3 are 2.92, 2.84, 2.85 and 2.85 Å respectively (Fig. 4)
Summary
R factor = 0.063; wR factor = 0.126; data-to-parameter ratio = 14.4. The title compound, C17H19NO4, which is a non-toxic insect growth regulator with the common name fenoxycarb, contains two independent and conformationally different molecules in the asymmetric unit. The inter-ring dihedral angles are similar [62.21 (15) and 63.00 (14) ], the side-chain orientations differ. The molecules are linked through N—H O hydrogen-bonding associations, giving chains which extend along [110], while intra- and intermolecular aromatic C—H interactions give sheet structures parallel to [110]
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