Determination of the rotational diffusion by a picosecond phase fluorometer
โ Scribed by H.-P. Haar; U.K.A. Klein; F.W. Hafner; M. Hauser
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 374 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
โฆ Synopsis
The rotational diffusion of the o\ypyrenetrisulphonate .mion (OPS) in aqueous solution has been studied by measuring the time dependent fluorescence depolarization with .I phase fluorometer. In the temperature region from 10 to 95ยฐC the relaxation times vary between 136 and 26 ps. Comparison with the theory shows that the rotating volume IS ;1 sphere containing the OPS molecule and about 10 water molecules.
๐ SIMILAR VOLUMES
The rotational diffusion time of ruthenium( II)-bis( 2,2'-bipyridine) (2,2'-biquinoleine) has been measured in polar solvents of different viscosity. The rotational dynamics can be explained in terms of the Stokes-Einstein-Debye hydrodynamics theory under stick boundary condition by considering the
A simple batch sorption method is examined for diffusivity determinations of binary solutions of low molecular weight organic compounds in amorphous polymers. The method is based on solute uptake from a stirred liquid solution by a polymer sheet sample submerged in the liquid solution and measuremen