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Acta Cryst. (2013). C69, 1563-1566  [ doi:10.1107/S010827011303196X ]

Inter­molecular C-H...O, Cl...Cl and [pi]-[pi] inter­actions in the 2-di­chloro­methyl derivative of vitamin K3

R. Soave and P. Colombo

Synopsis: The title 1,4-naphtho­quinone is a chlorinated derivative of vitamin K3, which is a synthetic compound also known as menadione. Mol­ecules are planar, lie on a crystallographic mirror plane (Z' = 0.5) and are connected to each other by C-H...O hydrogen bonds, forming two-dimensional layers parallel to the ac plane.

Formula: C12H8Cl2O2

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