TY - JOUR
T1 - STEADY‐STATE OPTICAL POLARIZATION ANISOTROPY OF RODLIKE MOLECULES UNDERGOING TORSIONAL TWISTING MOTIONS
AU - Ludescher, Richard D.
AU - Ludescher, William H.
PY - 1993/12
Y1 - 1993/12
N2 - Abstract An analytical expression was derived for the steady‐state optical polarization anisotropy expected for a rodlike molecule undergoing torsional twisting motions about its long molecular axis. This expression is parameterized in terms of the ratio τ/φ where τ is the excited‐state lifetime of the chromophore and Φ is a characteristic time for rotational twisting (Yoshimura et al., J. Mol. Biol. 179, 453–467, 1984) that is proportional to the torsional rigidity of the flexible rodlike molecule; the amplitude at any given value of τ/φ is also determined by the angle between the chromophore transition dipole and the long molecular axis of the molecule.
AB - Abstract An analytical expression was derived for the steady‐state optical polarization anisotropy expected for a rodlike molecule undergoing torsional twisting motions about its long molecular axis. This expression is parameterized in terms of the ratio τ/φ where τ is the excited‐state lifetime of the chromophore and Φ is a characteristic time for rotational twisting (Yoshimura et al., J. Mol. Biol. 179, 453–467, 1984) that is proportional to the torsional rigidity of the flexible rodlike molecule; the amplitude at any given value of τ/φ is also determined by the angle between the chromophore transition dipole and the long molecular axis of the molecule.
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U2 - 10.1111/j.1751-1097.1993.tb04987.x
DO - 10.1111/j.1751-1097.1993.tb04987.x
M3 - Article
AN - SCOPUS:84989715145
SN - 0031-8655
VL - 58
SP - 881
EP - 883
JO - Photochemistry and Photobiology
JF - Photochemistry and Photobiology
IS - 6
ER -