η³-Allylmetall-Schwefel-Komplexe, IV/ η³-Allyl-hydrogensulfidopalladium- und -platin-Komplexe/ η³-Allylmetal-Sulfur Complexes, IV. η³-Allyl-hydrogensulfidopalladium and -platinum Complexes

Abstract

Abstract η 3 -Allyl- or η 3 -methallyl-η 5 -cyclopentadienylpalladium react with hydrogensulfide at - 78 °C with selective cleavage of the cyclopentadienyl group to give the dimeric, thermolabile η 3 -allyl- or η 3 -methallylhydrogensulfidopalladium (2, 2a), which decompose above ≈ - 60 °C to palladiumsulfide and propene or isobutene. The new compounds have been characterised by 1 H NMR, IR and Raman spectroscopy. Similarly, η 3 -allyl- and η 3 - methallylhydrogensulfidoplatinum (6, 6 a) have been prepared from hydrogensulfide and η 3 -allyl- and η 3 -methallyl-?75-cyclopentadienylplatinum, respectively. From bis(??3-allyl)- or bis(?y3-methallyl)palladium and H2S rj3-allyl- or ??3-methallylhydrogensulfidopalladium (2', 2a') have been obtained and their IR spectra and physical properties found to differ from those of 2 or 2a.