ISSN:
0749-1581
Schlagwort(e):
Multinuclear NMR;
;
Platinum-Amine complexes
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
Reaction of the platinum complex K[PtCl3(NH3)] with NH3 or NH2(CH2)nNH2 in the presence of I- gives the mixed chloroiodoamine complexes cis-[PtCl3(NH3)2] and [{cis-Pt(Cl)3(I)(NH3)2}2μNH2(CH2)nNH2], respectively. These findings prompted an examination of the nature of the reaction of K[PtCl3(NH3)] with I- in detail. Rapid displacement of two chlorides to give the trans-[Pt(I)2Cl(NH3)]- anion is observed with a subsequent slow displacement of the third chloride to give the [PtI3(NH3)]- anion. Concomitant with the formation of the triiodo anion, dimerization occurs, giving the iodo-bridged compound [PtI2(NH3)]2. Correlation of δ(195Pt) and δ(15N) chemical shifts and 1J(195Pt,15N) coupling constants was made with literature values, allowing a complete set of data for the series [PtXn(NH3)4 - n](2 - n)+ with systematic variation of X (Cl,I) to be presented.
Zusätzliches Material:
2 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/mrc.1260311009
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