A series of allyl molybdenum [(η3-C3H5) Mo (CO) 2L2Cl],[(η3-C3H4COOMe) Mo (CO) 2L2Br], cyclopentadienyl molybdenum [(η5-C5H4R) Mo (CO) 2L2][BF4](R= H, 4- MeOC6H4CH2, 3, 4, 5-(MeO) 3C6H2CH2), indenyl molybdenum [(η5-C9H6R) Mo (CO) 2L2][BF4](R= H, 4-MeOC6H4CH2) and cyclopentadienyl tungsten compounds [(η5-C5H5) W (CO) 2L2][BF4], where L2 is N, N′-chelating ligand, were synthesized and ...