sl~ows nearly Gaussian contours, complete absence of shoulders, and a single lnaximun~ a t a frequency i~ltermediate betlveen those of HDO iri ice and in vapor. Illcrease of temperature causes a grnd~tal shift of each band in the direction of the f r e q~~e n c y in vapor. 'I'hese obscrvations fully support the "conti~li~urn" modcls of the structure of liql~id water and present strong cvidet~ce against the "rnizt~~re" rllotlels. It is concluded that hydrogeti bonds it1 liqliid \\.atcr have a broad, smooth, sing-le-pealced distributior~ of strengths. whicl~ gl-ad~ially shifts with temperatllre. 'l'he h\.drogen bonds a t one end of this distribution have strengths cornparable to thosc in ice, \vhere;~s those a t the other end are very wealc. These extremes do not correspond to disti~ict mo1ccul;ir species. Every description of licl~~id water ill terms of "bro1;en" a~l d "~~nbrolccn" bonds, or "monomers" and "clusters", is thcrcforc arbitrary. ISTI

No abstract

The absorption bands due to the OH and O D stretching vibrations of HDO in ice were measured between 0 and -182" and compared with the corresponding bands in liquid water. Their frequencies were correlated with the intermolecular potential energies of H 2 0 and D 2 0 . The distributions of the intermolecular energies in ice and in water at different temperatures were derived from the profilcs of the bands.

No abstract

No abstract