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Electron spin resonance spectroscopy studies of 99Tc(IV) in aqueous solutions

✍ Scribed by Walter R. Benson; George C. Yang; Martin W. Heitzmann; Leonard A. Ford

Publisher
John Wiley and Sons
Year
1978
Tongue
French
Weight
333 KB
Volume
15
Category
Article
ISSN
0022-2135

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✦ Synopsis

The ear spectra of Tc(1V) in acidic, aqueous solutions were observed at ambient temperatures when various reducing agents were added to pertechnetate solutions. the 4d3 electrons of Tc(IV) and its nucleus (I = 9/2) gave 10 hyperfine lines with an average splitting of about 140 gauss.

Relative to the rapid reduction rate of Tc04-(VII) to Tc(V) using ascorbic acid, the reduction rate of Tc(V) to Tc(1V) as monitored by esr is slow.

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Electronic transitions of the manganate(
Electronic transitions of the manganate(V) ion in aqueous solution: a resonance Raman study
✍ L. K. Noda; M. C. C. Ribeiro; N. S. GonΓ§alves; A. H. Jubert; O. Sala πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 140 KB πŸ‘ 2 views

The resonance Raman spectra of manganate(V) ion in aqueous solution in the visible and near-UV regions were studied. The maximum in the Raman excitation profile (REP) of the totally symmetric vibrational mode (n 1 ) at ca 600 nm is assigned to a charge-transfer transition with appreciable d-d charac