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RESEARCH PRODUCT

Dioxomolybdenum(VI) complexes with tri- and tetradentate aminobis(phenolate)s

Reijo SillanpääAri Lehtonen

subject

ChemistryStereochemistryMethylamineCrystal structureMedicinal chemistryInorganic Chemistrychemistry.chemical_compoundMonomerBenzoinMaterials ChemistryMethanolPhysical and Theoretical ChemistryAcetonitrilePhosphineNorbornene

description

Abstract The reactions of tridentate ligands, bis(2-hydroxy-3,5-dimethylbenzyl)methylamine (H2ONOMe) and bis(2-hydroxy-3-tert-butyl-5-methylbenzyl)methylamine (H2ONOtBu) with [MoO2(acac)2] (1) in methanol lead to the precipitation of monomeric dioxomolybdenum(VI) complexes [MoO2(ONOMe)(MeOH)] · MeOH (2a) and [MoO2(ONOtBu)(MeOH)] · MeOH (2b), respectively. Identical reactions in acetonitrile provide dimeric complexes [Mo2O2(μ-O)2(ONOMe)2] (3a) and [Mo2O2(μ-O)2(ONOtBu)2] (3b). The reactions of 1 with tetradentate ligands, N,N′-bis(2-hydroxy-3,5-dimethylbenzyl)-N,N′-dimethylethane-1,2-diamine (H2ONNOMe) and N,N′-bis(2-hydroxy-3,5-di-tert-butylbenzyl)-N,N′-dimethylethane-1,2-diamine (H2ONNOtBu) yield monomeric complexes [MoO2(ONNOMe)] (4a) and [MoO2(ONNOtBu)] (4b), respectively. All studied complexes catalyse oxotransfer reactions between DMSO and benzoin or triphenyl phosphine. Complexes can also be activated by Et2AlCl to polymerise norbornene.

yearjournalcountryeditionlanguage
2005-01-01Polyhedron
https://doi.org/10.1016/j.poly.2004.11.003