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  • 1
    ISSN: 0749-1581
    Keywords: Multinuclear NMR; ; Platinum-Amine complexes ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 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.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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