1H, 13c and 195pt n.m.r. spectra of trimethylplatinwm(iv) tetramers [ptme3z]4: Effects of pt-z-pt and long-range pt-z-pt-c couplings

Appleton T.G. and Hall J.R. (1980) 1H, 13c and 195pt n.m.r. spectra of trimethylplatinwm(iv) tetramers [ptme3z]4: Effects of pt-z-pt and long-range pt-z-pt-c couplings. Australian Journal of Chemistry, 33 11: 2387-2403. doi:10.1071/CH9802387


Author Appleton T.G.
Hall J.R.
Title 1H, 13c and 195pt n.m.r. spectra of trimethylplatinwm(iv) tetramers [ptme3z]4: Effects of pt-z-pt and long-range pt-z-pt-c couplings
Journal name Australian Journal of Chemistry   Check publisher's open access policy
ISSN 1445-0038
Publication date 1980-01-01
Sub-type Article (original research)
DOI 10.1071/CH9802387
Volume 33
Issue 11
Start page 2387
End page 2403
Total pages 17
Subject 1600 Chemistry
Abstract 1H, 13C and 195Pt n.m.r. spectra have been obtained for [PtMe3(μ3-Z)]4 (Z = Cl, Br, I, OH, N3, SMe, SPh, and SCF3). The compounds with Z = SPh and SCF, have not previously been prepared. In those tetramers which contain more than one 195Pt nucleus, and where 195Pt-Z-195Pt coupling is significant, 1H and 13C spectra cannot be interpreted as first order. Values of 2Jpt-z-pt have been calculated from 13C spectra where Z = SMe, SPh, OH, and N3, and upper limits estimated for a number of other Z. When Z = SMe and OH, long-range 195Pt-Z-Pt-13C coupling is resolved. 2J(195Pt-S-13C) when Z = SMe and SCF3, and 3J(195Pt-S-C-19F) when Z = SCF3, are unexpectedly small. The 195Pt resonance frequency decreases in the order Z = OH > SPh > SMe > N3 ≈ C1 > Br ≈ SCF3 > I. To assist in analysing the spectra transition frequencies and intensities have been calculated for the AA′2X spectrum (available as an accessory publication).
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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