Premium
Elektronenspinresonanz‐Untersuchungen von VO 2+ ‐Komplexverbindungen in wässeriger Lösung II
Author(s) -
Wüthrich K.
Publication year - 1965
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19650480504
Subject(s) - chemistry , hyperfine structure , electron paramagnetic resonance , paramagnetism , vanadium , absorption spectroscopy , ion , crystallography , nuclear magnetic resonance , inorganic chemistry , atomic physics , physics , organic chemistry , quantum mechanics
Complex formation between vanadyl(IV) ion and Tiron, and sulfosalicylic acid respectively, has been investigated by means of electron paramagnetic resonance (e.p.r.) and optical spectroscopy. The 1:1‐ and 1:2‐complexes are distinguishable by the position of the absorption maxima in the optical absorption spectrum as well as by the parameters of the e.p.r. spectrum. There is no evidence for the existence of stable hydroxo‐complexes. The influence of the ligands on the vanadium nuclear hyperfine splitting constant in the e.p.r. spectrum is discussed in terms of spin polarization.