Latent low-coordinate titanium imides supported by a sterically encumbering β-diketiminate ligand†
Abstract
Addition of an equal molar quantity of R−
(R = Me, SiMe3) to complex (Nacnac)TiNAr(OTf)
(Nacnac−
=
[ArNC(tBu)]2CH, Ar = 2,6-iPr2C6H3) forms the imido alkyl (Nacnac)Ti
NAr(R), which can be readily protonated to afford [(Nacnac)Ti
NAr(L)]+
(L = THF, Et2O, η1-C6H5NMe2), or treated with B(C6F5)3 to afford the zwitterion (Nacnac)Ti
NAr(μ-CH3)B(C6F5)3.