SYNTHESIS OF HETEROBIMETALLIC PHOSPHIDO-BRIDGED W-MO COMPLEXES WITH CHELATING DONE AND DPPM LIGANDS

Reactions between CpW(CO)(2)(mu-PPh(2))Mo(CO)(5) (1) and bidentate pho sphines (dppm and dppe) produced complexes CpW(CO)(2)(mu-PPh(2)) Mo(CO )(3)(dppm) (2a) and CpW(CO)(2)(mu-PPh(2))Mo(CO)(3) (dppe) (2b) with ch elating dppm and dppe ligands as only products. No bridging bidentate phosphine complex was observed. Both complexes were spectroscopically characterized.