| Tris(2-pyridyl)phosphine (PPy3) and tris(2-pyridyl)phosphine oxide (OPPy3) reacted with late first row transition metal(II) nitrates (M = Ni, Cu, Zn) and lanthanide(III) nitrates (Ln = Y, Ce, Pr, Nd, Sm, Eu, Yb) in simple one-pot procedures. All metal complexes were characterized by IR spectroscopy, X-ray diffraction, and 1H/31P NMR spectroscopy.;The facial N,N',N''-coordinated metal complexes: [Ni(PPy 3)(H2O)3](NO3)2, Cu(PPy 3)(NO3)2, [Zn(PPy3)(H2O) 3](NO3)2(H2O), [Ni(OPPy3)(H 2O)3](NO3)2(H2O), [Cu(OPPy 3)(NO3)2(H2O)], [Zn(OPPy3)(H 2O)3](NO3)2(H2O), [Ln(PPy 3)(NO3)3](CH2Cl2) (Ln = Nd(III), Sm(III), Yb(III)), were isolated in yields from 44-97%. The N,N',N''-coordination leaves the phosphorus of PPy3 open to other potential bonding interactions.;Anti-bis-bidentate O,N-chelate complexes of the type [Ln(OPPy3)2(NO3)3](CH 3CHOCH3)1.5 (Ln = Y, Ce, Pr, Nd, Sm, Eu, Yb) were isolated in yields from 25-87%. The O,N-coordination mode in these complexes leaves two pyridyl nitrogens free for potential binding to another metal. The ability of these free pyridyl nitrogens to bind another M(II) metal nitrate is under investigation. |
