Seidler Tomasz, Gryl Marlena, Trzewik Bartosz, Stadnicka Katarzyna
Faculty of Chemistry, Jagiellonian University, R. Ingardena 3, 30-060 Kraków, Poland.
Acta Crystallogr Sect E Struct Rep Online. 2011 Jun 1;67(Pt 6):o1507. doi: 10.1107/S1600536811018629. Epub 2011 May 25.
The title compound, C(19)H(13)N(5)O(3), can be obtained from the corresponding α-amido-α-amino-nitrone in a reaction with biphenyl-2,2'-diamine. The amido-amidine core has distinctive geometrical parameters including: an outstandingly long Csp(2)-Csp(2) single bond of 1.5276 (13) Å and an amidine N-C-N angle of 130.55 (9)°. Intra-molecular N-H⋯O, N-H⋯N and C-H⋯O hydrogen bonds occur. In the crystal, mol-ecules form layers parallel to (001) via weak inter-molecular C-H⋯N inter-actions. The layers are linked via N-H⋯O hydrogen bonds and π-π inter-actions along [001] [benzene-pyridine centroid-centroid distance = 3.672 (2) Å].
标题化合物C(19)H(13)N(5)O(3)可通过相应的α-酰胺基-α-氨基硝酮与联苯-2,2'-二胺反应得到。酰胺基脒核心具有独特的几何参数,包括:一条异常长的1.5276 (13) Å的Csp(2)-Csp(2)单键以及一个130.55 (9)°的脒N-C-N角。分子内存在N-H⋯O、N-H⋯N和C-H⋯O氢键。在晶体中,分子通过弱的分子间C-H⋯N相互作用形成平行于(001)的层。这些层通过N-H⋯O氢键和沿[001]的π-π相互作用相连[苯-吡啶质心-质心距离 = 3.672 (2) Å]。