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Bis(bidentate) complexes of iminobis(diphenylphosphine chalcogenides)[M{N(XPPh 2 ) 2 -X,X′} 2 ](X = S or Se; M = Ni, Pd or Pt)

1995; Royal Society of Chemistry; Issue: 10 Linguagem: Inglês

10.1039/dt9950001607

2050-5671

Pravat Bhattacharyya, Josef Novosad, Julian R. Phillips, Alexandra M. Z. Slawin, David J. Williams, J. Derek Woollins,

Organometallic Compounds Synthesis and Characterization

The compound NH(SePPh2)2 has been synthesised from NH(PPh2)2 and selenium in refluxing toluene. A range of complexes [M{N(XPPh2)2-X, X′}2](X = Se, M = Pt 1 or Pd 2; X = S, M = Pt 3, Pd 4 or Ni 5) of the monoanions derived from NH(SePPh2)2 and its sulfur analogue have been prepared. The new compounds have been characterised by microanalysis, NMR and IR spectroscopy. The crystal structures of NH(SePPh2)2, 1, 2 and 5 were determined. The neutral NH(SePPh2)2 crystallised as H-bonded dimer pairs with a noticeable difference in the hydrogen bonded and non-hydrogen bonded PSe bond lengths. The PSe groups are approximately anti. On complexation the anionic ligands are bidentate and in all cases the resulting MX2P2N rings are distinctly puckered.