442655-16-5Relevant academic research and scientific papers
X-ray crystal structures of novel platinum(II) and palladium(II) complexes of dialkyl phosphonated phosphines
Guerrero, Gilles,Mutin, P. Hubert,Dahan, Fran?oise,Vioux, André
, p. 113 - 120 (2007/10/03)
Two diethyl phosphonated phosphine ligands of formula Ph2P(CH2)3PO3Et2 (ligand L) and Ph2P(4-C6H4PO3Et2) (ligand L′) were used to prepare different complexes of platinum(II) (1, cis-PtCl2L2; 2, trans-PtCl2L2·H2O; 3A and 3B, cis- and trans-PtCl2L2′) and palladium(II) (4, [PdCl2L]2; 5, trans-PdCl2L2·H2O; 6, trans-PdCl2L2′·Ch2 Cl2). The single-crystal X-ray structure analyses of complexes 1, 2, 4-6 indicate that complexation involved only the phosphine end, whereas the strong polarization of the P=O bond was highlighted by the formation of hydrogen bonds with a water molecule in 2 and 5, and with a dichloromethane molecule in 6, with an exceptionally short C-H(triple dot sign)O hydrogen bond length (C(triple dot sign)O separation 3.094(3) A?).
