[gmx-users] hydrogen bonds in water tutorial

[Sung Hyun Park]

Dear Gmx-users,

This may be a dumb question, but I am wondering about the number of hydrogen
bonds in the "water" tutorial. The system is 216 SPC/E water molecules in a
box, and the number of hydrogen bonds per time frame fluctuates around ~350,
which gives th number of hydrogen bonds per water mlecule to be only ~1.6.
Isn't this too low, compared with the typical number ~3.5 for bulk water
mlecule?

Thanks,
Sung
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