Patent application EP20179663A (EP), filed 2020-06-12
Publication number: EP3750901A1
Title: ORGANOMETALLIC COMPOUND, ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME, AND DIAGNOSTIC COMPOSITION INCLUDING THE ORGANOMETALLIC COMPOUND
Abstract: [0001]    Provided are an organometallic compound represented by Formula 1, an organic light-emitting device including the organometallic compound, and a diagnostic composition including the organometallic compound.

         <Formula 1>     M<1>(L<11>)n<11>(L<12>)<n12>
wherein L<11> in Formula 1 is a ligand represented by Formula 1-1, and the descriptions of other substituents are the same as described in the detailed description of the present application:

<img class="EMIRef" id="685359022-ia01" />
IPC codes: C07F  15/    00            A I
C09K  11/    06            A I
H10K  99/    00            A I
H05B  33/    14            A I
Claims: number: 1
text: An organometallic compound represented by Formula 1:
number: 2
text: The organometallic compound of claim 1, wherein M<1> is Pt, Pd, or Au; and/or
wherein A<20> and A<30> are each independently a benzene group, a naphthalene group, an anthracene group, a phenanthrene group, a triphenylene group, a pyrene group, a chrysene group, cyclopentadiene group, a 1,2,3,4-tetrahydronaphthalene group, a furan group, a thiophene group, a silole group, a pyrrole group, an indene group, a fluorene group, an indole group, a carbazole group, a benzofuran group, a dibenzofuran group, a benzothiophene group, a dibenzothiophene group, a benzosilole group, a dibenzosilole group, an azafluorene group, an azacarbazole group, an azadibenzofuran group, an azadibenzothiophene group, an azadibenzosilole group, a pyridine group, a pyrimidine group, a pyrazine group, a pyridazine group, a triazine group, a quinoline group, an isoquinoline group, a quinoxaline group, a quinazoline group, a phenanthroline group, a pyrrole group, a pyrazole group, an imidazole group, a triazole group, a tetrazole group, an oxazole group, an isooxazole group, a thiazole group, an isothiazole group, an oxadiazole group, a thiadiazole group, a benzopyrazole group, a benzimidazole group, an indazole group, a benzoxazole group, a benzothiazole group, a benzoxadiazole group, a benzothiadiazole group, a benzotriazole group, a diazaindene group, a triazaindene group, a 5,6,7,8-tetrahydroisoquinoline group, or a 5,6,7,8-tetrahydroquinoline group; and/or
wherein T<1> is a single bond, *-N[(L<1>)<a1>-(R<6>)<b6>]-*', *-B(R<6>)-*', *-C(R<6>)(R<7>)-*', *-Si(R<6>)(R<7>)-*', *-O-*', or *-S-*', and
T<2> is a single bond, *-N[(L<2>)<a2>-(R<8>)<b8>]-*', *-C(R<8>)(R<9>)-*', *-Si(R<8>)(R<9>)-*', *-O-*', or *-S-*'.
number: 3
text: The organometallic compound of claims 1 or 2, wherein L<1> and L<2> are each independently:
number: 4
text: The organometallic compound of any of claims 1-3, wherein a bond between M<1> and A<20> and a bond between M<1> and A<30> are each a covalent bond.
number: 5
text: The organometallic compound of any of claims 1-4, wherein R<1> to R<9>, R<10>, R<20>, R<30> and R<41> to R<44> are each independently:
number: 6
text: The organometallic compound of any of claims 1-5, wherein R<2> and R<43> are each independently:
number: 7
text: The organometallic compound of any of claims 1-6, wherein R<1> to R<9>, R<10>, R<20>, R<30> and R<41> to R<44> are each independently hydrogen, deuterium, -F, a cyano group, a nitro group, -SF<5>, -CH<3>, -CD<3>, -CD<2>H, -CDH<2>, -CF<3>, -CF<2>H, -CFH<2>, a group represented by one of Formulae 9-1 to 9-19, or a group represented by one of Formulae 10-1 to 10-194:
number: 8
text: The organometallic compound of any of claims 1-7, wherein each of R<41>, R<42>, and R<44> is hydrogen.
number: 9
text: The organometallic compound of any of claims 1-8, wherein the organometallic compound represented by Formula 1 is represented by one of Formulae 2-1 and 2-2:
number: 10
text: The organometallic compound of claim 1, wherein the organometallic compound is selected from compounds 1 to 176.
number: 12
text: The organic light-emitting device of claim 11, wherein the first electrode is an anode,
the second electrode is a cathode,
the organic layer further comprises a hole transport region between the first electrode and the emission layer and an electron transport region between the emission layer and the second electrode,
the hole transport region comprises a hole injection layer, a hole transport layer, an electron blocking layer, or any combination thereof, and
the electron transport region comprises a hole blocking layer, an electron transport layer, an electron injection layer, or any combination thereof.
number: 13
text: The organic light-emitting device of claims 11 or 12, wherein the organometallic compound is included in the emission layer.
number: 14
text: The organic light-emitting device of claim 13, wherein the emission layer further comprises a host and the amount of the host is greater than the amount of the organometallic compound; and/or
wherein the emission layer further comprises a fluorescent dopant; and/or
wherein the emission layer emits blue light having a maximum luminescence wavelength of 410 nm to 490 nm.
number: 15
text: A diagnostic composition comprising at least one organometallic compound of any of claims 1-10.
Office action: search_report, dated 2020-12-16
Prior art cited: ref_id: US2019119312A1
ref_type: patent
severity: background
ref_id: US2019119312
ref_type: patent
severity: background
Final disposition: pending (2020-12-16)