Oxidative Addition Reactions of Low?Valent Gallium Compounds with Primary Phosphanes

Cooperative bimetallic oxidative addition reactions*

The factors that control the oxidation of metals in bimetallic complexes are investigated in relation to the possibility of developing one-site addition two-metal oxidation reactions such as those that occur in the respiratory protein, hemerythrin. It is shown that the behavior of bimetallic complexes is not represented by the sum of the analogous monometallic parts because of metal and ligand ...

Oxidation reactions of an anionic gallium(I) N-heterocyclic carbene analogue with group 16 compounds.

The reactivity of an anionic gallium(I) heterocycle, [K(tmeda)][:Ga([N(Ar)C(H)]2)], Ar = C6H3Pr(i)2-2,6, towards sources of elemental chalcogens and diorgano-dichalcogenides has been investigated and comparisons drawn with the reactivity of the valence isoelectronic N-heterocyclic carbene class of ligand. The reactions of the heterocycle with N2O or (Te)PEt3 yielded the dimeric, dianionic galli...

Air-Stable, Highly Fluorescent Primary Phosphanes**

Light without fright: a synthetic route to fluorescent primary phosphanes (RPH(2)) that are resistant to air oxidation both in the solid state and in chloroform solution is described. These versatile precursors undergo hydrophosphination to give tripodal ligands and subsequently fluorescent transition-metal complexes.

Catalytic asymmetric conjugate addition/oxidative dearomatization towards multifunctional spirocyclic compounds.

NMR spectral properties of phosphanes and related compounds in solutionw

Selected theoretical methods, basis sets and solvation models have been tested in their ability to predict P NMR chemical shifts of large phosphorous-containing molecular systems in solution. The most efficient strategy was found to involve NMR shift calculations at the GIAO-MPW1K/ 6-311++G(2d,2p)//MPW1K/6-31G(d) level in combination with a dual solvation model including the explicit considerat...