The first bridged lanthanide carbene complex formed through reduction of carbodiimide by diamine-bis(phenolate) ytterbium(ii) complex and its reactivity to phenylisocyanate

Abstract

The reaction of YbL(THF)(2) (L = [-OC(6)H(2)(2,4-(t)Bu(2))(6-CH(2))](2)NCH(2)CH(2)NMe(2)) with (i)PrN=C=N(i)Pr led to the bridged carbene ytterbium complex (YbL)(2)(μ-N(i)PrCN(i)Pr) via a two-electron reduction process of carbodiimide, which reacted with PhNCO to afford a dinuclear ytterbium complex and a spiro derivative.