Matsumoto K, Kawashita K, Kannami M, Oda M. Crystal structure of tetra-kis-(1-oxidopyridin-2-yl)methane methanol tetra-solvate.
Acta Crystallogr E Crystallogr Commun 2015;
71:o754-5. [PMID:
26594459 PMCID:
PMC4647381 DOI:
10.1107/s2056989015016862]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 09/09/2015] [Indexed: 11/25/2022]
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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