Clustering and Micro-immiscibility in Alcohol-Water Mixtures: Evidence   from Molecular Dynamics Simulations
  We have investigated the hydrogen-bonded structures in liquid methanol and a 7:3 mole fraction aqueous solution using classical Molecular Dynamics simulations at 298K and ambient pressure. We find that, in contrast to recent predictions from X-ray emission studies, the hydrogen-bonded structure in liquid methanol is dominated by chain and small ring structures. In the methanol-rich solution, we find evidence of micro-immiscibility, supporting recent conclusions derived from neutron diffraction data. 
Susan K. Allison, Joseph P. Fox, Rowan Hargreaves, Simon P. Bates