Synthesis of highly soluble yttrium–salen complexes and the X-ray structure of N,N′-bis(3,5-di-tert-butylsalicylidene)ethylenediamine-[bis(dimethylsily)amido]yttrium

N,N′-Bis(3,5-di-tert-butylsalicylidene)ethylenediamine H2L reacts with [Y{N(SiHMe2)2}3(thf)2] in thf–hexane at ambient conditions to afford monomeric [YL{N(SiHMe2)2}(thf)], the X-ray structure determination of which reveals a strongly bent coordination mode of the anionic salen derived ligand.