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Water molecule structure
All water molecules demonstrate vibration movements described as stretching and bending vibrations.
Water molecule structure: H2O
Water’s coordination geometry consists of tetrahedron structure.
In liquid water hydrogen bonds between water molecules tend to be very transient (lasting only 10-11 seconds!). Water molecules readily hydrogen bonds between each other. On average each water molecule in liquid water is hydrogen bonded to 3.4 other water molecules. (http://www.mansfield.ohio-state.edu/~sabedon/biol1015.htm#reduction)
Because of the dipole nature of water, H+ and O2－are constantly drawn to each other creating a stretching vibration. When H+ and H+ become closer, they push against each other (because of its + nature) creating a bending vibration. These natural vibrations are constant as long as water exists.
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