According to Scheme 11, after the 17-electron CpMo (CO) Lz complex transfers an electron to Cp2MOz (C0) 6, the resulting CpMo (CO) Lz+ intermediate acquires a CO ligand to form the product C~ MO (CO)~ L~+. In the presence of L, one might also expect some CpMo (CO) L3+ complex to form (eq 2). To test for