Abstract
The title compound, C22H29N3O2Si·0.5CHCl3, crystallizes in the the triclinic space group P with two host mol-ecules and one chloro-form mol-ecule in the asymmetric unit. The core of the mol-ecule consists of a urea unit bound to a 3-amino-acryloyl group. These units are almost planar in both mol-ecules [average deviation from plane of 0.05 (6) Å in mol-ecule A and 0.04 (5) Å in mol-ecule B]. The main difference between mol-ecules A and B involves the dihedral angles of the phenyl groups. One phenyl ring makes dihedral angles of 71.14 (6)° (mol-ecule A) and 82.81 (7)° (mol-ecule B) with respect to the core (C4N3O2) of the mol-ecule [14.56 (9)° (mol-ecule A) and 5.7 (1)° (mol-ecule B) for the other phenyl ring]. Another prominent feature is the intra-molecular N-H⋯O hydrogen bond present in both crystallographically independent mol-ecules.
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