Rotational relaxation of water
Rotational relaxation of water:
| symbol | explanation | experimental value, and method |
| HH | H-H axis | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \tau_2=2.0} ps (H-H dipolar relaxation NMR) |
| OH | O-H axis | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \tau_2=1.95} ps (Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle ^{17}} O-H dipolar relaxation NMR) |
| Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \mu} | dipolar axis | not measurable, but related to bulk dielectric relaxation |
| normal to the molecule plane | not measurable |