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1. A compound of the formula (1),
M(L)n(L′)m formula (1)containing a moiety M(L)n of the formula (2) or formula (3): where the following applies to the symbols and indices used: M is a metal; X is selected on each occurrence, identically or differently, from the group consisting of C and N; all X here together represent a 14 π electron system; R1 to R7 is on each occurrence, identically or differently, a polymerisable group PG or H, D, F, Cl, Br, I, N(R8)2, CN, NO2, Si(R8)3, B(OR8)2, C(═O)R8, P(═O)(R8)2, S(═O)R8, S(═O)2R8, OSO2R8, a straight-chain alkyl, alkoxy or thioalkoxy group having 1 to 40 C atoms or an alkenyl, alkynyl or imine group having 2 to 40 C atoms or a branched or cyclic alkyl, alkoxy or thioalkoxy group having 3 to 40 C atoms, where the above-mentioned alkyl, alkoxy, thioalkoxy, alkenyl, alkynyl and imine groups may each be substituted by one or more radicals R8, where one or more non-adjacent CH2 groups is optionally replaced by R8C═CR8, Si(R8)2, Ge(R8)2, Sn(R8)2, C═O, C═S, C═Se, C═NR8, P(═O)(R8), SO, SO2, NR8, O, S or CONR8 and where one or more H atoms is optionally replaced by D, F, Cl, Br, I, CN or NO2, or an aromatic or heteroaromatic ring system having 5 to 60 aromatic ring atoms, which is optionally in each case be substituted by one or more radicals R8, or an aryloxy or heteroaryloxy group having 5 to 60 aromatic ring atoms, which is optionally substituted by one or more radicals R8, or an aralkyl or heteroaralkyl group having 5 to 60 aromatic ring atoms, which is optionally substituted by one or more radicals R8, or a diarylamino group, diheteroarylamino group or arylheteroarylamino group having 10 to 40 aromatic ring atoms, which is optionally substituted by one or more radicals R8; R1 and R2 and/or R2 and R3 and/or R4 and R5 and/or R5 and R6 and/or R6 and R7 here may also form a mono- or polycyclic, aliphatic, aromatic and/or benzo-fused ring system with one another; furthermore, R3 and R4 may form a mono- or polycyclic, in each case aliphatic ring system with one another; with the proviso that R1, R2, R3, R4, R5, R6 or R7 represents a free electron pair if the group X to which this radical R1, R2, R3, R4, R5, R6 or R7 is bonded is a nitrogen atom having a saturated valence;R8 is on each occurrence, identically or differently, H, D, F, Cl, Br, I, N(R9)2, CN, NO2, Si(R9)3, B(OR9)2, C(═O)R9, P(═O)(R9)2, S(═O)R9, S(═O)2R9, OSO2R9, a straight-chain alkyl, alkoxy or thioalkoxy group having 1 to 40 C atoms or an alkenyl or alkynyl group having 2 to 40 C atoms or a branched or cyclic alkyl, alkoxy or thioalkoxy group having 3 to 40 C atoms, each of which is optionally substituted by one or more radicals R9, where one or more non-adjacent CH2 groups is optionally replaced by R9C═CR9, C≡C, Si(R9)2, Ge(R9)2, Sn(R9)2, C═O, C═S, C═Se, C═NR9, P(═O)(R9), SO, SO2, NR9, O, S or CONR9 and where one or more H atoms is optionally replaced by D, F, Cl, Br, I, CN or NO2, or an aromatic or heteroaromatic ring system having 5 to 60 aromatic ring atoms, which is optionally in each case be substituted by one or more radicals R9, or an aryloxy or heteroaryloxy group having 5 to 60 aromatic ring atoms, which is optionally substituted by one or more radicals R9, or an aralkyl or heteroaralkyl group having 5 to 60 aromatic ring atoms, which is optionally substituted by one or more radicals R8, or a diarylamino group, diheteroarylamino group or arylheteroarylamino group having 10 to 40 aromatic ring atoms, which is optionally substituted by one or more radicals R9; two or more adjacent radicals R8 here may form a mono- or polycyclic, aliphatic or aromatic ring system with one another;R9 is on each occurrence, identically or differently, H, D, F, CN or an aliphatic, aromatic and/or heteroaromatic hydrocarbon radical having 1 to 20 C atoms, in which, in addition, one or more H atoms is optionally replaced by D or F; two or more substituents R9 here optionally forms a mono- or polycyclic, aliphatic or aromatic ring system with one another;PG is a polymerisable group, with the proviso that the polymerisable group is not selected from Cl, Br, I and B(OR8)2; and furthermore with the proviso that, if one or more of the radicals R1 to R7 as polymerisable group PG are selected from an alkenyl or an alkynyl group, it is a terminal alkenyl or alkynyl group having 3 to 40 C atoms, where individual CH2 groups or individual H atoms may also be replaced by the groups mentioned above in the case of R1 to R7; and furthermore with the proviso that, if one or more of the radicals R1 to R7 as polymerisable group PG is selected from a group Si(R8)3, R8 stands either for Cl or for an alkoxy group having 1 to 40 C atoms;
L′ is, identically or differently on each occurrence, a co-ligand; n is 1, 2 or 3; m is 0, 1, 2, 3 or 4;a plurality of ligands L here may also be linked to one another or L is optionally linked to L′ via a single bond or a bridge V and thus form a tridentate, tetradentate, pentadentate or hexadentate ligand system;
wherein at least one of the radicals R1 to R7 and/or at least one radical on the ligand stands for a polymerisable group PG. |
