Titanium and vanadium complexes with tetraphenylimidodiphosphinate

Tetravalent Titanium, Zirconium, and Cerium Oxo and Peroxo Complexes Containing an Imidodiphosphinate Ligand

“…9−17 Metal−tpip complexes have been used as NMR shift agents, 10 luminescent materials, 11−13 and catalysts for organic oxidations. 14,15 By contrast, very few studies have been made on the more soluble isopropyl substituted analogue, [N(i-Pr 2 PO) 2 ] − . 16 Previously, we reported the synthesis of cis-Ti(tpip) 2 Cl 2 and [V(O)(μ-tpip)(μ-O)] 3 and their use in catalytic oxidation of organic sulfides with tert-butyl hydroperoxide.…”

Hydrogen bis(tetraphenylimidodiphospinic acid) triiodide

“…For related literature, see: Bassett et al (2005); Bernstein et al (1995); Garcia-Montalvo et al (2001); Ghesner et al (2005); Godfrey et al (1996); Haiduc (2004); Noth (1982); Rietzel et al (1990); ; ; Yi et al (2006). 2= 108.696 (2) V = 1236.8 (3) Å 3 Z = 1 Mo K radiation = 2.07 mm À1 T = 297 (2) K 0.23 Â 0.17 Â 0.14 mm…”

“…We also thank the National Center for X-ray Diffraction in Cluj-Napoca for support in the solid-state structure determination. The tetraphenylimidodiphosphinato ligand [(OPPh 2 ) 2 N]is extensively used in coordination chemistry due to its ability to form stable complexes with a variety of main group and transition metals, Garcia-Montalvo et al, 2001;Ghesner et al, 2005;Haiduc, 2004;Yi et al, 2006. In metal complexes the O,O′monometallic biconnective pattern of this ligand is the most common, with an angular P-N-P fragment ). Due to its ideal framework structure for minimization of radiationless decay pathways of NIR f-f luminescence, [(OPPh 2 ) 2 N]is also an efficient sensitizer for NIR light emitting complexes of Nd III , Er III and Yb III (Bassett et al, 2005).…”

Vanadium, niobium and tantalum

“…9 It was found that the trinuclear complex [{V (2), containing a similar trinuclear structure to that described above. 10 Both monoand tri-nuclear tpip compounds performed as a sulfoxidation catalysts in the conversion of phenyl methyl sulfides to the corresponding sulfoxides and sulfones in the presence of peroxides.…”