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4,4′-(4,5-Dimethyl-1,2-phenyl-ene)bis-(2-methyl-but-3-yn-2-ol): Structural variation in vicinal dialkynols

Acta Crystallographica Section C: Crystal Structure Communications, ISSN: 0108-2701, Vol: 68, Issue: 4, Page: o179-82
2012
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The structure of the title compound, C H O , contains two non-equivalent mol-ecules which differ primarily in the location of the -OH groups on opposite sides or on the same side of the mol-ecular plane. Inversion-symmetric pairs of mol-ecules form inter-molecular O - H⋯O hydrogen-bonded tetra-meric synthons that link non-equivalent mol-ecules into an approximately square double layer parallel to ( 02). Recently reported fluorinated analogues [Kane, Meyers, Yu, Gerken & Etzkorn (2011). Eur. J. Org. Chem. pp. 2969-2980] have significantly different structures of varying complexity that incorporate intra-molecular hydrogen bonding and suggest that further study of structure versus substituents in vicinal dialkynols could be fruitful. © 2012 International Union of Crystallography.

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