Organic molecules for use in organic optoelectronic devices

An organic molecule, comprising a structure of Formula I

• with
• X═CN and
• D=
• wherein
• # is the point of attachment of unit D to a phenyl ring of the structure according to Formula I;
• Z is a direct bond or is selected from the group consisting of CR3R4, C═CR3R4, C═O, C═NR3, NR3, O, SiR3R4, S, S(O) and S(O)2;
• in each occurrence R1 and R2 are the same or different and are selected from the group consisting of:
• H, deuterium;
• a linear alkyl group having 1 to 5 C atoms, wherein one or more H atoms can be replaced by deuterium;
• a linear alkenyl or alkynyl group having 2 to 8 C atoms, wherein one or more H atoms can be replaced by deuterium;
• a branched or cyclic alkyl, alkenyl or alkynyl group having 3 to 10 C atoms, wherein one or more H atoms can be replaced by deuterium;
• and
• an aromatic ring system having 5 to 15 aromatic ring atoms, which can in each case be substituted with one or more radicals R6;
• in each occurrence Ra, R3 and R4 is the same or different and is selected from the group consisting of:
• H, deuterium, N(R5)2, OH, Si(R5)3, B(OR5)2, OSO2R5, CF3, CN, F, Br, I;
• a linear alkyl, alkoxy or thioalkoxy group having 1 to 40 C atoms, which can in each case be substituted with one or more radicals R5, wherein one or more non-adjacent CH2 groups can be replaced by R5C═CR5, C≡C, Si(R5)2, Ge(R5)2, Sn(R5)2, C═O, C═S, C═Se, C═NR5, P(═O)(R5), SO, SO2, NR5, O, S or CONR5 and wherein one or more H atoms can be replaced by deuterium, CN, CF3 or NO2;
• a linear alkenyl or alkynyl group having 2 to 40 C atoms, which can in each case be substituted with one or more radicals R5, wherein one or more non-adjacent CH2 groups can be replaced by R5C═CR5, C≡C, Si(R5)2, Ge(R5)2, Sn(R5)2, C═O, C═S, C═Se, C═NR5, P(═O)(R5), SO, SO2, NR5, O, S or CONR5 and wherein one or more H atoms can be replaced by deuterium, CN, CF3 or NO2;
• a branched or cyclic alkyl, alkenyl, alkynyl, alkoxy or thioalkoxy group having 3 to 40 C atoms, which can in each case be substituted with one or more radicals R5, wherein one or more non-adjacent CH2 groups can be replaced by R5C═CR5, C≡C, Si(R5)2, Ge(R5)2, Sn(R5)2, C═O, C═S, C═Se, C═NR5, P(═O)(R5), SO, SO2, NR5, O, S or CONR5 and wherein one or more H atoms can be replaced by deuterium, CN, CF3 or NO2;
• an aromatic or heteroaromatic ring system having 5 to 60 aromatic ring atoms, which can in each case be substituted with one or more radicals R5;
• an aryloxy or heteroaryloxy group having 5 to 60 aromatic ring atoms, which can be substituted with one or more radicals R5;
• and
• a diarylamino group, diheteroarylamino group or arylheteroarylamino group having 10 to 40 aromatic ring atoms, which can be substituted with one or more radicals R5;
• in each occurrence R5 is the same or different and is selected from the group consisting of:
• H, deuterium, N(R6)2, OH, Si(R6)3, B(OR6)2, OSO2R6, CF3, CN, F, Br, I;
• a linear alkyl, alkoxy or thioalkoxy group having 1 to 40 C atoms, which can in each case be substituted with one or more radicals R6, wherein one or more non-adjacent CH2 groups can be replaced by R6C═CR6, C≡C, Si(R6)2, Ge(R6)2, Sn(R6)2, C═O, C═S, C═Se, C═NR6, P(═O)(R6), SO, SO2, NR6, O, S or CONR6 and wherein one or more H atoms can be replaced by deuterium, CN, CF3 or NO2;
• a linear alkenyl or alkynyl group having 2 to 40 C atoms, which can in each case be substituted with one or more radicals R6, wherein one or more non-adjacent CH2 groups can be replaced by R6C═CR6, C≡C, Si(R6)2, Ge(R6)2, Sn(R6)2, C═O, C═S, C═Se, C═NR6, P(═O)(R6), SO, SO2, NR6, O, S or CONR6 and wherein one or more H atoms can be replaced by deuterium, CN, CF3 or NO2;
• a branched or cyclic alkyl, alkenyl, alkynyl, alkoxy or thioalkoxy group having 3 to 40 C atoms, which can in each case be substituted with one or more radicals R6, wherein one or more non-adjacent CH2 groups can be replaced by R6C═CR6, C≡C, Si(R6)2, Ge(R6)2, Sn(R6)2, C═O, C═S, C═Se, C═NR6, P(═O)(R6), SO, SO2, NR6, O, S or CONR6 and wherein one or more H atoms can be replaced by deuterium, CN, CF3 or NO2;
• an aromatic or heteroaromatic ring system having 5 to 60 aromatic ring atoms, which can in each case be substituted with one or more radicals R6;
• an aryloxy or heteroaryloxy group having 5 to 60 aromatic ring atoms, which can be substituted with one or more radicals R6;
• and
• a diarylamino group, diheteroarylamino group or arylheteroarylamino group having 10 to 40 aromatic ring atoms, which can be substituted with one or more radicals R6;
• in each occurrence R6 is the same or different and is selected from the group consisting of:
• H, deuterium, OH, CF3, CN, F, Br, I;
• a linear alkyl, alkoxy or thioalkoxy group having 1 to 5 C atoms, wherein one or more H atoms can be replaced by deuterium, CN, CF3 or NO2;
• a linear alkenyl or alkynyl group having 2 to 5 C atoms, wherein one or more H atoms can be replaced by deuterium, CN, CF3 or NO2;
• a branched or cyclic alkyl, alkenyl, alkynyl, alkoxy or thioalkoxy group having 3 to 5 C atoms, wherein one or more H atoms can be replaced by deuterium, CN, CF3 or NO2;
• an aromatic or heteroaromatic ring system having 5 to 60 aromatic ring atoms;
• an aryloxy or heteroaryloxy group having 5 to 60 aromatic ring atoms;
• and
• a diarylamino group, diheteroarylamino group or arylheteroarylamino group having 10 to 40 aromatic ring atoms;
• wherein each of the radicals Ra, R3, R4 or R5 can also form a mono- or polycyclic, aliphatic, aromatic and/or benzoannelated ring system with one or more further radicals Ra, R3, R4 or R5;
• and
• wherein at least one Ra is not H, and
• wherein at least one R2 is H.