2CP(O)R 2] -, (R?= Ph, CH 2Ph) in organometallic Lead(IV) and Mercury(II) compounds]]>

摘要

AbstractA series of phosphinoyldithioformate compounds were synthesized from metathesis reactions of K[R2P(O)CS2], and R'nPbCl4-nand R’HgCl. The compounds isolated were characterized using infrared, UV and multinuclear NMR (1H,13C, and31P) spectroscopy. Structural diversity of these compounds is revealed through analysis of the infrared and NMR spectroscopy, where variable temperature31P NMR spectroscopy data of6reveals non-rigid coordination behavior and an equilibrium ofanisobonded S,S 4-membered ring, and S,O bonded 5-membered ring bonding modes in [MeHg{S2CP(O)(Ph)2}], (6–6′). The crystal structure of6′shows the mercury atom in a T-shape geometry with S,O-bidentate coordinated ligand although room temperature NMR indicated the coordination to the mercury in6is non rigid in solution. Variable temperature31P NMR spectroscopy yielded an average value of ΔG#6-6′?=?45.7?±?1.7?kJ?mol?1for the temperature range of 190?K–283?K. The crystal structure of [Ph2Pb{S2CP(O)(Ph)2}2(H2O)],1, reve