Abstract: | Compounds of Germanium and Tin. 17 1]. Alkylarylstannylene Complexes of Chromium and Molybdenum without Donor Stabilization Reaction of the complexes (OC)5M(THF)], M = Cr, Mo, with the alkylarylstannylene RR′Sn: R = 2,4,6-tBu3C6H2, R′ = CH2C(CH3)2-3,5-tBu2C6H2, provides the donor-free stannylene complexes (OC)5Cr?SnRR′] ( 6 ) and (OC)5Mo?SnRR′] ( 8 ), respectively. The X-ray structure analyses of the isotypic compounds 6 and 8 reveal the three coordinate tin atoms in strictly planar environments and acute CSnC angles of 91.2° ( 6 ) and 91.3° ( 8 ). |