The structure of water — Extra material

Video clips in YouTube

“Structure of water” —short animation that illustrates the structure of water— by SamuelHammer (2006) 3min 34s

“Water simulation” —computer simulation of water molecules— by kafuitay (2006) 0min 33s

“Molecular motion in water” —dynamic hydrogen bond rearrangement— by vitroid0 (2007) 0min 29s + -

Hydrogen bond rearrangement dynamics in liquid water. Microscopic potential energy fluctuation, which is typical 1/f noise, is converted to sound. It sounds like a water fall.

“Water structure” —the simulation box and structure of water predicted by molecular dynamics— by science4all (2007) 0min 29s

“Bulk water” —molecular dynamics of water — by cornycoww (2007) 2min 05s

“Freezing dynamics of water” —water freezing into ice, by simulation— by vitroid0 (2007) 0min 33s

“Hydration shell dynamics of a hydrophobic particle” —simulation of a Xenon particle in liquid water, showing the water hydration shell and the hydrogen bond network— by hexawater (2007) 0min 50s + -

Molecular dynamics simulation of a hydrophobic Xenon particle dissolved in liquid water at 275 K and ambient pressure conditions. Shown are the water molecules in the hydration shell, as well as the fluctuating hydrogen bond network. Note the volatility of the hydrogen bond network, and the preferential straddling geometry adopted by the first shell water molecules, trying to keep the hydrogen bond network intact. The position of the "camera" is rotating around the hydrophobic particle and moving with the freely diffusing Xenon particle.

Video clips from other sites

Computer simulation of ice melting after it is heated with a short light pulse — by C. Caleman and D. van der Spoel, Uppsala University (Sweden). 9.21 MB; 0min 24s;   + -

Simulation of the melting of ice by a laser pulse. The laser deposits energy which first causes the OH bonds to oscillate; after a few picoseconds, the energy is converted into rotational and translational energy, which causes the crystal to melt, though crystalline domains remain visible for quite a while.
Ref.: C. Caleman and D. van der Spoel. Picosecond melting of ice by an infrared laser pulse: a simulation study. Angewandte Chemie International Edition, doi: 10.1002/anie.200703987   [MPG movie] [website]
Reported in: Slow motion melting ice crystals in a computer animation. ScienceDaily (10 January 2008), Wiley-Blackwell. Accessed 15 January 2008. [link]
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