Ionic liquid mediated routes to polydentate oxygen-donor adducts of cerium(iii) bromideElectronic supplementary information (ESI) available: Full experimental data and X-ray data tables are provided. CCDC reference numbers 845795845798. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c2dt12333a

The preparation of a series of CeBr 3 molecular adducts supported by the polydentate oxygen donor ligands diglyme, dimethoxyethane and tetraglyme is reported. The new complexes are characterized structurally by X-ray diffraction and optically by photoluminescence studies. Dissolution of CeBr 3 (THF) 4 into polyether solutions in the presence of [BMP][NTf 2 ] results in the high yielding formation of several novel polyetherate adducts of CeBr 3 .