Infrared spectroscopy and quantum chemical calculations of OH-(H2O)n complexes.
Infrared spectra of OH-(H2O)n (n = 1, 2) isolated in solid Ne were measured by FT-IR spectroscopy. Complexes of OH-(H2O)n were prepared by vacuum ultraviolet (VUV) photolysis of water clusters, and the OH radical stretch and HOH bending vibrations of OH-H2O and OH-(H2O)2 complexes were identified with the aid of quantum chemical calculations. Observation of the recombination reaction OH-H2O + H --> (H2O)2 under dark conditions provides undisputed evidence for our spectroscopic assignment. Quantum chemical calculations predict the cyclic structure to be the most stable for OH-(H2O)2 and OH-(H2O)3. The strength of the hydrogen bond within OH-(H2O)n depends on cluster size.
Tsuji
Kazuhide
K
Gunma National College of Technology, Maebashi 371-8530, Japan. ktsuji@nat.gunma-ct.ac.jp
Shibuya
Kazuhiko
K
D006860:Hydrogen Bonding; D017665:Hydroxyl Radical / Q000737:chemistry*; D008956:Models, Chemical; D011789:Quantum Theory; D017550:Spectroscopy, Fourier Transform Infrared; D014732:Vibration; D014867:Water / Q000737:chemistry*
D014867:Water; D017665:Hydroxyl Radical