PHOTOCHEMICALLY INDUCED C-H BOND ACTIVATION AND LIGAND TRANSFER IN THE REACTION OF [CP2RH2(CO)(CF3C2CF3)] WITH [(CP')MN(CO)2(THF)] - STRUCTURAL CHARACTERIZATION OF THE RH4 PRODUCT

A room-temperature single-crystal X-ray diffraction study carried out on a product of a sunlight-induced reaction between [Cp2Rh2(CO)(CF3C2C F3)] and [(Cp')Mn(CO)2(thf)] in 2:1 ratio in hydrocarbon solution esta blishes it to be tetranuclear [(Cp4Rh4)(CF3C=CHCF3)2(CH3C5H3)]; Crysta ls of the latter are triclinic, P1BAR, a 15.803(9), b 13.445(8), c 8.9 66(6) angstrom, alpha 75.92(5), beta 80.68(5), gamma 65-46(4)-degrees, Z=2. Full-matrix refinement for 3431 'observed' (I > 3sigma(I)], abso rption-corrected data converged at R 0.056. The structure comprises a pair of enantiomeric [(CP2Rh2)(CF3C=CHCF3)] binuclear units unsymmetri cally linked by the central CH3C5H3 ring, by way of the eta1,eta2-C=CH and eta1,eta2-C=CMe functionalities.