Ha Kwang
School of Applied Chemical Engineering, The Research Institute of Catalysis, Chonnam National University, Gwangju 500-757, Republic of Korea.
Acta Crystallogr Sect E Struct Rep Online. 2010 Nov 20;66(Pt 12):o3222-3. doi: 10.1107/S1600536810047185.
In the title compound, C(27)H(27)N(7)O(9)·CH(3)CN, the three nitro groups of the polydentate tripodal Schiff base are located approximately parallel to their respective carrier benzene rings, making dihedral angles of 3.9 (4), 5.0 (4) and 6.3 (4)°. Intra-molecular O-H⋯N hydrogen bonds between the hy-droxy O atoms and the imine N atoms, with O⋯N distances in the range 2.607 (3)-2.665 (3) Å, form nearly planar six-membered rings. In the crystal, weak inter-molecular C-H⋯O and C-H⋯N hydrogen bonds occur and several intra- and inter-molecular π-π inter-actions are present between adjacent benzene rings, with a shortest centroid-centroid distance of 3.507 (2) Å.
在标题化合物C(27)H(27)N(7)O(9)·CH(3)CN中，多齿三脚架席夫碱的三个硝基与其各自的载体苯环大致平行，二面角分别为3.9 (4)°、5.0 (4)°和6.3 (4)°。羟基O原子与亚胺N原子之间形成分子内O-H⋯N氢键，O⋯N距离在2.607 (3)-2.665 (3) Å范围内，形成近乎平面的六元环。在晶体中，存在弱的分子间C-H⋯O和C-H⋯N氢键，相邻苯环之间存在若干分子内和分子间的π-π相互作用，最短质心-质心距离为3.507 (2) Å。
