Unusual chemical reactivity in the reactions of Re2(CO)8(μ-H)(μ-η1,η2-CHCHBu) with 2,3-bis(diphenylphosphino)maleic anhydride (bma) and Re2(CO)8(bma) with Ni(cod)2: X-ray diffraction structures of Re2(CO)8(bma), zwitterionic Re(CO)4[Re(CO)4(bma)], and the phosphido-bridged complex Re2(CO)8[μ-η1,η1-(O)](μ-PPh2)

PC Bond Cleavage of (silox)3NbPMe3 (silox = tBu3SiO) under Dihydrogen Leads to (silox)3NbCH2, (silox)3NbPH or (silox)3NbP(H)Nb(silox)3, and CH4

“…Phosphorus−carbon bond cleavage, which is potentially useful with regard to the destruction of toxic agents, is often deleterious to transformations catalyzed by ((R/R‘) 3 P) n ML m X o . Substantial precedent exists for PR cleavage when R = aryl, − yet only a limited number of phosphorus−alkyl bond scissions are known, − and the majority involve chelating ligands (e.g., Ph 2 PCH 2 Ph 2 ). , While investigating the stability of (silox) 3 NbPMe 3 ( 1 ) under dihydrogen, we discovered that the PC bonds of PMe 3 were thermally severed, and that ambient light assisted the degradation. Herein we report our initial investigation of the thermal and light-dependent hydrogenation of PMe bonds.…”