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short communications
The structure of bis((phenyl-O,N,N-azoxy)oxy)methane, CHNO, originally reported as triclinic, space group P1 [Zyuzin et al. (1997). Isz. Akad. Nauk SSSR Ser. Khim. pp. 1486-1492; CSD refcode NIXQAM] was recently revised to monoclinic, space group C2 [Marsh (1999). Acta Cryst. B55, 931-936]. It is properly described as orthorhombic, space group Fdd2.