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Titolo:
ELECTROCHEMISTRY OF BORON-CAPPED TC-99 DIOXIME COMPLEXES
Autore:
CYR JE; LINDER KE; NOWOTNIK DP;
Indirizzi:
BRISTOL MYERS SQUIBB PHARMACEUT RES INST,POB 191,BLDG 74T NEW BRUNSWICK NJ 08903
Titolo Testata:
Inorganica Chimica Acta
fascicolo: 1, volume: 206, anno: 1993,
pagine: 97 - 104
SICI:
0020-1693(1993)206:1<97:EOBTDC>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
X; STRUCTURAL CHARACTERIZATION; DIOXIME COMPLEXES; TECHNETIUM(III); BR;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
25
Recensione:
Indirizzi per estratti:
Citazione:
J.E. Cyr et al., "ELECTROCHEMISTRY OF BORON-CAPPED TC-99 DIOXIME COMPLEXES", Inorganica Chimica Acta, 206(1), 1993, pp. 97-104

Abstract

Boron-capped technetium dioxime (BATO) compounds (1) have been studied by cyclic voltammetry, d.c. polarography, and controlled-potential coulometry/bulk electrolysis in DMF. Chloro and bromo BATOs undergo an irreversible two-electron reduction at mercury while for hydroxy BATOstwo consecutive one-electron reductions are observed. Rhenium analogsto the BATOs exhibit qualitatively similar reduction behaviour, but at more negative potentials. The uncapped tris-dioxime complexes (2) also show similar electrochemical behaviour. The two-electron peak potential is more sensitive to changes in the axial ligand and the dioxime than to changes in substituents on the boronic acid capping group. BATO reduction apparently leads to axial ligand loss and yields an air-sensitive, purple species. Both BATO reduction and oxidation appear to be biologically inaccessible.

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Documento generato il 08/04/20 alle ore 09:10:10