ISSN:
0749-1581
Keywords:
Platinum complexes
;
195Pt NMR
;
1H NMR
;
13C NMR
;
Ethylenediamine
;
Dimethylethylenediamine
;
Tetramethylethylenediamine
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Complexes of the types Pt(L)Cl2, [Pt(L)(D2O)2](NO3)2, [Pt(L)(D2O)(NO3)](NO3), Pt(L)(OD)2, [Pt(L)(D2O)Cl]+ and Pt(L)(OD)Cl, where L = ethylenediamine, N,N-dimethylethylenediamine, N,N′-dimethylethylenediamine and N,N,N′,N′-tetramethylethylenediamine, were characterized mainly by 195Pt and 1H (high- and low-field) nuclear magnetic resonance. The NMR spectra were measured in D2O. The dichloro complexes showed a 195Pt resonance between -2355 and -2433 ppm (relative to Na2PtCl6) whereas the diaqua compounds absorbed at lower field from -1821 to -1977 ppm. The signals of the monoaqua-monochloro species were observed at intermediate field between -2030 and -2173 ppm. The dihydroxo complexes showed a resonance at lower field (about 100 ppm) than the diaqua compounds, whereas the monochloro-monohydroxo species absorbed at about 50 ppm from the monoaqua-monochloro species. The monoaqua-mononitrato compounds with only two ligands absorbed at about -20 ppm from the diaqua species. The high-field proton NMR spectra of the complexes were also measured. The 195Pt-1H coupling constants were obtained from the low-field proton NMR spectra.
Additional Material:
3 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1260290205
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