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1H and 13C NMR structural studies in solution of oxotechnetium(V) complexes with N,N-bis(2-mercaptoethyl)-N′,N′-diethylethylenediamine and N,N-bis(2-mercaptoethyl)-2-ethylthioethylamine

✍ Scribed by C. I. Stassinopoulou; M. Pelecanou; S. Mastrostamatis; E. Chiotellis

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
357 KB
Volume
32
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The complete assignments of the ^1^H and ^13^C resonances of three TcOLX complexes of oxotechnetium(V)‐99 with H~2~L=N,N‐bis(2‐mercaptoethyl)‐N′,N′‐diethylethylenediamine or N,N‐bis(2‐mercaptoethyl)‐2‐ethylthioethylamine and X=p‐methoxythiophenolate or chloride ions are reported. Chemical shifts are influenced by the proximity of protons and carbons to the coordinated heteroatoms and by their orientation with respect to the TcO core. The NMR spectra at room temperature are the result of motionally averaged conformations.

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