NMR spectra of platinum(III) complexes with sulfato- and phosphato-bridges

Appleton T.G., Hall J.R. and Neale D.W. (1985) NMR spectra of platinum(III) complexes with sulfato- and phosphato-bridges. Inorganica Chimica Acta, 104 1: 19-31. doi:10.1016/S0020-1693(00)83781-0

Author Appleton T.G.
Hall J.R.
Neale D.W.
Title NMR spectra of platinum(III) complexes with sulfato- and phosphato-bridges
Journal name Inorganica Chimica Acta   Check publisher's open access policy
ISSN 0020-1693
Publication date 1985-10-01
Sub-type Article (original research)
DOI 10.1016/S0020-1693(00)83781-0
Volume 104
Issue 1
Start page 19
End page 31
Total pages 13
Subject 1303 Specialist Studies in Education
1604 Human Geography
1606 Political Science
2505 Materials Chemistry
Abstract 195Pt NMR data are reported for Pt(III) dimeric anions Pt2(Z)4XYn-, where Z = SO4 or PO4H, and X, Y are anionic or neutral ligands. 13CN-, 15NO2- , and 15NH3 were included among these, and couplings between 195Pt and 13C or 15N allowed unambiguous assignments to be made in the 195Pt spectra of their compounds. Substitution of one water molecule in Pt2(Z)4(H2O)22- frequently causes large shifts of the Pt atom not directly involved in the substitution. Where X and Y are different, 1J(PtPt) has been measured directly from the 195Pt spectrum, and this coupling constant has also been obtained for Pt2(Z)2(13CN)24- by analysis of the spectrum. For corresponding compounds, 1J(PtPt) is always larger in magnitude for Z = PO4H than for Z = SO4, although v(PtPt) from Raman spectra and PtPt bond lengths do not indicate a stronger PtPt bond. In a series Pt2(Z)4XYn- where X is kept constant (e.g., X = H2O, CN-), J(PtPt) decreases with increasing trans influence of Y. For Pt2(SO4)4(13CN)Yn- , 1J(PtC) and 2J(PtPtC), both decrease as the trans influence of Y increases, and δC becomes more positive. These and other observations are interpreted in terms of rehybridization of both Pt-atoms when one of them is substituted.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
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