| Abstract: | LiE(SiMe3)2 (E = P, As) as Building Unit of Molybdenum Complexes with EH Ligands The complex [{CpMo(CO)2}2(μ‐H)(μ‐PH2)] ( 1 ) can be obtained in a one‐pot reaction using [CpMo(CO)2]2, LiP(SiMe3)2, MeOH and HBF4. Experiments to synthesize [{CpMo(CO)2}2(μ‐H)(μ‐AsH2)] in an analogous reaction sequence using [CpMo(CO)2]2 and LiAs(SiMe3)2 failed. However, the products ‐[{CpMo(CO)2}2(μ, η2‐As2)] and [{CpMo(CO)2}2(μ‐H)(μ4‐As){CpMo(CO)2}2(μ4, η1:η1‐As2H){CpMo(CO)2}2(μ‐H)] ( 3 ) could be obtained via this reaction. The deprotonated derivative of 1 , K[{CpMo(CO)2}2(μ‐PH2)] ( 2 ), which can be obtained by reaction of 1 with KH, doesn't react with GaCl3 under KCl elimination as expected. Instead, the Lewis acid/base adduct K[{CpMo(CO)2}2(μ‐PH2)(GaCl3)] ( 4 ) is formed, which adopts a polymeric chain structure in the solid state. The structural and the spectroscopic data of the products are discussed. |
