ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

The study of the electronic structure of the rhenium(IV) dinuclear complexes by the isotope-exchange method

S. Wajda

Univ. Wroclaw, Polland

Abstract: The kinetics were studied for the isotope exchange in the systems [Re₂OCl₁₀]₄^--36Cl^-, [Re₂O(OH)₆(C₂O₄)₂]^4- -14C₂O₄^2-, and [Re₂O(OH)₂(C₂O₄)₄]₄^--14C₂O₄^2- to det. the structure of dinuclear Re(IV) compds. with anomalous magnetic properties. The Cl in [Re₂OCl_10]^4- in the trans positions with respect to the Obridge are equiv. The reaction order indicated the exchange to take place by a dissocn. mechanism. An equil. may exist between the mono- and dinuclear complexes. For [Re₂O(OH)₆(C₂O₄)_2]^4-, the exchange of the oxalate groups proceeded slowly with a high activation energy. For [Re₂O(OH)₂(C₂O₄)₄]^4- there was no exchange. Space configurations were proposed for both complexes.

Full paper in Portable Document Format: 193a221.pdf (in Russian)

Chemical Papers 19 (3) 221–228 (1965)