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1 H and 13 C 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
Author(s) -
Stassinopoulou C. I.,
Pelecanou M.,
Mastrostamatis S.,
Chiotellis E.
Publication year - 1994
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260320906
Subject(s) - chemistry , oxygen 17 , nuclear magnetic resonance spectroscopy , crystallography , stereochemistry , nuclear magnetic resonance , physics
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 TcO core. The NMR spectra at room temperature are the result of motionally averaged conformations.