Tetrahedral manganese(II) complexes having formulae [MnX2{O = PR(NMe2)(2)}(2)] (X = Br, I; R = NMe2, Ph) were isolated and characterized, and in the case of [MnBr2{O = PPh(NMe2)(2)}(2)] the structure was ascertained by means of single crystal X-ray diffraction. All the complexes showed intense green emission assigned to the Mn(II) T-4(1)((4)G) -> (6)A(1)(S-6) transition upon excitation with UV light, with photoluminescence lifetimes in the range 100-1000 mu s. Bromo-complexes maintain their luminescence features once dispersed in polycaprolactone matrix.

Green-emitting manganese ({II}) complexes with phosphoramide and phenylphosphonic diamide ligands

Francesco Enrichi;
2018

Abstract

Tetrahedral manganese(II) complexes having formulae [MnX2{O = PR(NMe2)(2)}(2)] (X = Br, I; R = NMe2, Ph) were isolated and characterized, and in the case of [MnBr2{O = PPh(NMe2)(2)}(2)] the structure was ascertained by means of single crystal X-ray diffraction. All the complexes showed intense green emission assigned to the Mn(II) T-4(1)((4)G) -> (6)A(1)(S-6) transition upon excitation with UV light, with photoluminescence lifetimes in the range 100-1000 mu s. Bromo-complexes maintain their luminescence features once dispersed in polycaprolactone matrix.
Manganese (II)
Tetrahedral complexes
Photoluminescence
Phosphoramide ligands
Phenylphosphonic diamide ligands
Doped polycaprolactone
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11562/1064524
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