Thermal Reorientation Kinetics of I       2    −     in RbI | Zendy

Delbecq C. J. | Zendy; Stokes J. P. | Zendy; Yuster P. H. | Zendy

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Thermal Reorientation Kinetics of I 2 − in RbI

Author(s) -

Delbecq C. J.,

Stokes J. P.,

Yuster P. H.

Publication year - 1977

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2220800208

Subject(s) - anisotropy , activation energy , jump , kinetics , orientation (vector space) , atmospheric temperature range , materials science , range (aeronautics) , thermal , ion , crystallography , molecule , condensed matter physics , chemical physics , chemistry , thermodynamics , optics , physics , geometry , composite material , mathematics , classical mechanics , organic chemistry , quantum mechanics

Experimental studies of the thermally activated reorientation of I 2 −in RbI: AgI single crystals are carried out by measuring the decay of the optical anisotropy of preferentially oriented I 2 −at fixed temperatures. These studies show that in the temperature range investigated, contrary to previous results by others, thermally induced changes in orientation of I 2 −in RbI result almost totally from elementary jumps in which the orientation of the I 2 −molecule ion changes by 60°. The activation energy for this 60° jump is determined to be (0.306 ± 0.005) eV.

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