P-H and P-P bond activation by Ni(I) and Fe(I) beta-diketiminato-complexes.

Reactions of ((NacNac)Ni)2(mu-eta3-eta3-C6H5Me) (NacNac = HC(CMeNC6H3(i-Pr)2)2) with PH2Ph or PHPh2 proceeds in a facile manner to afford the Ni(I)-phosphine adducts (NacNac)Ni(PH2Ph) and (NacNac)Ni(PHPh2) , respectively. The related reactions of the Fe(I) complex (NacNac)Fe(eta2-CH2CPh2) with PH2Ph resulted in the formation of [(NacNac)Fe(mu2-PPh)]2. Alternatively was also obtained from the reaction of [(NacNac)Fe(mu-Cl)]2 with PHPh2 and Na/K. The Ni(II) di-phosphosphine bridged compound [((NacNac)Ni)2(mu4-(PPh)2)] was prepared via reaction of ((NacNac)Ni)2(mu-eta3-eta3-C6H5Me) with P5Ph5. Crystallographic data are reported for compounds .