Fluorescent compounds
AssigneeAmersham International plc
InventorsColin D. Bell, John H. C. Howse
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Abstract
Novel compounds obtainable by reacting together an imido-reagent such as diphenylphosphonimidotriphenylphosphorane) with a chelate of a transition or lanthanide or actinide metal, such as tris(dibenzoylmethide) europium III, has the property of fluorescing in UV radiation. The invention includes solid polymer bodies containing such compounds, or chelates of transition or lanthanide or actinide metals generally, the bodies having the property of emitting light by virtue of internally generated, e.g. by tritium ionising radiation. The body is preferably of polystyrene formed by polymerising the monomer in the presence of the compound or metal chelate.
Claims28
A compound that results from reacting together an imido-reactant of the formula ##STR18## where Q is P or As, R is aromatic or heterocyclic, and Z is QR.sub.3 or an oligophosphoranyl group, with a chelate of a lanthanide or actinide metal ion selected from the group consisting of Tb, Eu, Sm, Dy, U and UO.sub.2 to produce a product which has the property of fluorescing in UV radiation.
A compound that results from reacting an imido-reactant of formula ##STR22## where Q is P or As, one of the R substituents is a copolymerizable group, while
- the other R substituent is aromatic or heterocyclic,
- and Z is QR.sub.3 or an oligophosphoranyl group, with a chelate of a lanthanide or actinide metal ion selected from the group consisting of Tb, Eu, Sm, Dy, U and UO.sub.2 to produce a product which has the property of fluorescing in UV radiation.
A compound that results from reacting an imido-reactant of formula ##STR23## where Q is P or As, one of the R substituents is a copolymerizable group, while
- the other R substituent is aromatic or heterocyclic,
- and Z is QR.sub.3 or an oligophosphoranyl group, with a chelate of a lanthanide or actinide metal ion selected from the group consisting of Tb, Eu, Sm, Dy, U and UO.sub.2 to produce a product which has the property of fluorescing in UV radiation;
- wherein the chelate comprises a chelating moiety of the formula ##STR24## where each R' is a hydrocarbon or fluorocarbon, and R" is fluorocarbon, hydrocarbon or hydrogen.
Dependencies are inferred from the claim text.