195Pt NMR isotopologue and isotopomer distributions of [PtCln(H2O)6 − n]4 − n (n = 6,5,4) species as a fingerprint for unambiguous assignment of isotopic stereoisomers

Wilhelmus J. Gerber; Pieter Murray; Klaus R. Koch

doi:10.1039/B807831A

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¹⁹⁵Pt NMR isotopologue and isotopomer distributions of [PtCl_n(H₂O)_{6 − n}]⁴⁻n (n = 6,5,4) species as a fingerprint for unambiguous assignment of isotopic stereoisomers†

Wilhelmus J. Gerber,^a Pieter Murray^a and Klaus R. Koch*^a

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* Corresponding authors

^a Department of Chemistry and Polymer Science, University of Stellenbosch, P Bag X1, Matieland, South Africa
E-mail: krk@sun.ac.za
Fax: +27 21 808 2344
Tel: +27 21 8083020

Abstract

A detailed analysis of the ³⁵Cl/³⁷Cl isotope shifts induced in the 128.8 MHz ¹⁹⁵Pt NMR resonances of [PtCl_n(H₂O)_{6 − n}]⁴⁻n complexes (n = 6,5,4) in acidic solution at 293 K, shows that the unique isotopologue and isotopomer distribution displayed by the resolved ¹⁹⁵Pt resonances, serve as a fingerprint for the unambiguous identification and assignment of the isotopic stereoisomers of [PtCl₅(H₂O)]⁻ and cis/trans-[PtCl₄(H₂O)₂].

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Supplementary files

Fig. S1 illustrating the temperature dependence of theresolution obtained for [PtCl₆]²⁻ isotopologues in solution (II) PDF (179K)

Article information

DOI: https://doi.org/10.1039/B807831A
Article type: Paper
Submitted: 07 May 2008
Accepted: 12 May 2008
First published: 18 Jun 2008

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Dalton Trans., 2008, 4113-4117

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¹⁹⁵Pt NMR isotopologue and isotopomer distributions of [PtCl_n(H₂O)_{6 − n}]⁴⁻n (n = 6,5,4) species as a fingerprint for unambiguous assignment of isotopic stereoisomers

W. J. Gerber, P. Murray and K. R. Koch, Dalton Trans., 2008, 4113 DOI: 10.1039/B807831A

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Dalton Transactions