Preferred Label : rotational relaxation time;
Detailed label : rotational relaxation time, ρ;
IUPAC definition : Parameter describing the time-dependence of the tumbling of a molecular entity in
a medium of viscosity η as originally defined by Debye, and used by Perrin in the
original development of the theories of rotational motion of fluorophores.;
Scope note : related to the rotational correlation time, tc, by ? 3 tc .thus, in
the case of a spherically emitting species reorienting itself in a homogeneous fluid,
? 1 6 dr , withdrthe rotational diffusion coefficient.;
Origin ID : RT07475;
See also
Parameter describing the time-dependence of the tumbling of a molecular entity in
a medium of viscosity η as originally defined by Debye, and used by Perrin in the
original development of the theories of rotational motion of fluorophores.
