title: 2-[(2-{Bis[2-(2-hy-droxy-5-nitro-benzyl-idene-amino)-eth-yl]amino}-eth-yl)imino-meth-yl]-4-nitro-phenol acetonitrile monosolvate.
abstract: 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.
authors: School of Applied Chemical Engineering, The Research Institute of Catalysis, Chonnam National University, Gwangju 500-757, Republic of Korea.
authors: Kwang
authors: K
authors: Ha
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