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Updated: Mar 29, 2026

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
Crystal structure of tetra-kis-(1-oxidopyridin-2-yl)methane methanol tetra-solvate
Kouzou Matsumoto1, Kazuaki Kawashita2, Masaki Kannami2
1Institute of Natural Sciences, Senshu University, Higashimita 2-1-1, Kawasaki, Kanagawa 214-8580, Japan.
Abstract:
The asymmetric unit of the title compound, C21H16N4O4·4CH3OH, consists of a quarter mol-ecule of tetra-kis-(1-oxidopyridin-2-yl)methane and one methanol solvent mol-ecule. In the crystal, the pyridine N-oxide derivative is located about a fourfold rotoinversion axis and exhibits S 4 symmetry along the c axis. An inter-molecular O-H⋯O hydrogen bond is observed between the O atom of the pyridine N-oxide and the OH group of the methanol. An inter-molecular C-H⋯O bond is also observed between adjacent pyridine N-oxide rings.
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