Low Molecular Weights | 合法藥品大搜索

Lowmolecularweightdiscoticliquidcrystalsareknowntohavemanyinterestingmechanical,optical,andelectronicpropertiesthatoriginatefromthehighly ...

Water is such an unusual substance that it has been accorded a special place in the annals of phenomena dealing with intermolecular forces, and two types of “special interactions”—the hydrogen bond and the hydrophobic effect—are particularly relevant to the interactions of water. The literature on the subject is vast (Franks, 1972–1982; Ball, 1999), not only because water is the most important liquid on earth but also because it has so many interesting and anomalous properties.

For a liquid of such a low molecular weight, water has unexpectedly high melting and boiling points and latent heat of vaporization.1 There are, of course, many other substances of low molecular weight and high melting and boiling points, but these are invariably ionic crystals or metals whose atoms are held together by strong...