Abstract
The title compound, C24H18N2O, was been described previously in the space group P21/c with Z = 4 [Kawashima & Okuno (2017). IUCrData, 2, x170277]. The current P\overline{1} polymorph was obtained from a chloroform–ethanol solution. The molecular structure in this polymorph is slightly different from the previously reported structure, with different dihedral angles of the two N-phenyl groups to the ynamine plane; these are 79.99 (11) and 12.09 (11)° in the polymorph reported here. The molecules form dimers through four C—H...π interactions. Furthermore, in this polymorph, the molecules stack along the a axis to form a molecular arrangement that would be suitable to promote the solid-state polymerization of diacetylenes.
Highlights
The title compound, C24H18N2O, was been described previously in the space group P21/c with Z = 4 [Kawashima & Okuno (2017)
The molecules form dimers through four C—HÁ Á Á interactions. In this polymorph, the molecules stack along the a axis to form a molecular arrangement that would be suitable to promote the solid-state polymerization of diacetylenes
The title compound (Fig. 1) is a diacetylene derivative that has potential solid-state polymerization reactivity. It was isolated in a monoclinic P21/c polymorph with Z = 4 (Kawashima & Okuno, 2017)
Summary
The title compound, C24H18N2O, was been described previously in the space group P21/c with Z = 4 [Kawashima & Okuno (2017). The current P1 polymorph was obtained from a chloroform–ethanol solution. The molecular structure in this polymorph is slightly different from the previously reported structure, with different dihedral angles of the two N-phenyl groups to the ynamine plane; these are 79.99 (11) and 12.09 (11) in the polymorph reported here. The molecules form dimers through four C—HÁ Á Á interactions. In this polymorph, the molecules stack along the a axis to form a molecular arrangement that would be suitable to promote the solid-state polymerization of diacetylenes
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