Coordination Sites: (OC)4Re(OEt2)FBF3 and (OC)2(PPh3)2Ru(FBF3)2The ally1 transfer reaction between Re(C0); and [(q3-replace the diethyl ether in 5 to give [(OC),Re(solvent),]BF4 allyl)PdClj2 complexes leads to (ally1)rhenium complexes (q3-(6, ?). The reaction of (OC)z(PPh3)zRuC1z with AgBF4 yields the HzCCR1CRZR3)Re(C0)4 (1: R1, RZ, R3 = H; 2: RZ, R3 = H, R1 = complex (OC)z(PPh3)zRu (FBF3)