Addition of N(SiMe 3 ) 2 anion equivalents to i PrNdCdN i Pr followed by reaction with YCl 3 generated the dimeric complex {[(Me 3 Si) 2 NC(N i Pr) 2 ] 2 Y(µ-Cl)} 2 (2). Complex 2 has proven to be an excellent starting material for preparation of a series of hydrocarbyl and amido products, 5), and [(Me 3 Si) 2 NC(N i Pr) 2 ] 2 YC(CH 3 ) 3 ( 6). Definitive evidence for the molecular structures of 2, 3, 5, and 6 is provided through singlecrystal X-ray analyses, which are presented. These results provide the first reported examples of organoyttrium complexes supported by a guanidinate ligand.
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