Yttrium beta-diketonate complexes with triglyme: ionic and neutral isomers and outer-sphere co-ordination of triglyme

摘要

While monoglyme and diglyme reacted with Y-III(hfac)(3) to give eight-and nine-co-ordinate neutral complexes Y(hfac)(3)(glyme), 1 and 2 respectively, reactions with triglyme or tetraglyme resulted in disproportionation giving the ionic complexes Y(hfac)(2)(glyme)(+)Y(hfac)(4)(-), 3a and 4 respectively; sublimation of 3a with adventitious water gave the outer-sphere glyme complex Y(hfac)(3)(OH2)(2). MeO(CH2CH2O)(3)Me which has an infinite chain helical structure. References: 15