Syntheses of Group 7 Metal Carbonyl Complexes with a Stable N-Heterocyclic Chlorosilylene

Two structurally characterized manganese [L2Mn(CO)4]+[Mn(CO)5]− (1) and rhenium [L3Re(CO)3]+[ReCO)5]− (2) silylene complexes were prepared in one pot syntheses by reacting 1 equivalent of Mn2(CO)10 with 2 equivalents of stable N-heterocyclic chlorosilylene L {L = PhC(NtBu)2SiCl} and 1 equivalent of Re2(CO)10 with 3 equivalents of L in toluene at room temperature. Both complexes 1 and 2 were characterized by single-crystal X-ray structural analysis, NMR and IR spectroscopy, EI-MS spectrometry, and elemental analysis.