Iodosylbenzene and iodylbenzene adducts of cerium(iv) complexes bearing chelating oxygen ligands†
Abstract
Reactions of [CeIV(LOEt)2Cl2] (LOEt− = [Co(η5-C5H5){P(O)(OEt)2}3]−) and [CeIV2(μ-O){N(Pri2PO)2}4Cl2] with PhIO afford the λ3-iodane complexes [CeIV(LOEt)2{OI(Cl)Ph}2] and [CeIV2{N(Pri2PO)2}3{OI(Cl)Ph}], respectively, whereas that between [CeIV(LOEt)2Cl2] and PhIO2 or excess PhIO yields the λ5-iodane adduct [CeIV(LOEt)2{OI(O)ClPh}2]. The crystal structures of the CeIV λ3- and λ5-iodane complexes have been determined and their oxo transfer reactivities have been investigated.