Hydrogen bond dynamics at the air/water interface
Hydrogen bond dynamics at the air/water interface
Understanding hydrogen bond dynamics of water at interfaces is of essential importance for elucidating water-matter interactions. Because it is known that bulk water dynamics is extremely faster than other liquids, femtosecond time-resolution is required for studying the water dynamics. We are investigating the hydrogen bond dynamics of water at the air/water interface using time-resolved HD-VSFG and two-dimensional HD-VSFG spectroscopies which were developed in our laboratory, This study will reveal how the hydrogen bond dynamics differs from that of bulk phase.
Mohammed, Sung (Singh, Inoue)
Fig.1. Schematic drawing of vibrational dynamics at the air/water interface. The vibrational excitation energy injected by the pump pulse relaxes through energy transfer, rearrangement of hydrogen bonds by rotation, etc.