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
Open Access Status Not yet assessed
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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