Rotation of water molecules within a CNT

Computer simulation studies reveal that the reorientational dynamics of water inside a CNT is anisotropic [11] and the average orientational relaxation time of the dipole 

Due to the tetrahedral arrangement of water its rotational freedom is limited. Also such bound hydrogen and free hydrogen can exchange their positions by the well-known large-amplitude rotational jump mechanism with a time interval of 100 fs [13]. In bulk water the dipole, OH, and HH vector relaxation timescales are 2.05, 2.3, and 2 ps, respectively. But in confined water such relaxation times 

Water in a carbon nanotube nature abhors a vacuum 

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