Electroluminescent device

A triazine compound of formula I

• W is a group of formula
• X and Y are independently of each other an aryl group or a heteroaryl group, wherein
• R11, R11′, R12, R12′, R13, R13′, R15, R15′, R16, R16′, R17, and are independently of each other H, E, C6-C18aryl;
• C6-C18aryl which is substituted by G;
• C1-C18alkyl;
• C1-C18alkyl which is substituted by E and/or interrupted by D;
• C7-C18aralkyl;
• or C7-C18aralkyl which is substituted by G;
• and
• R14 is H, C2-C30heteroaryl, C2-C30heteroaryl, which is substituted by G, C6-C30aryl, or C6-C30aryl, which is substituted by G, C1-C18alkyl;
• or C1-C18alkyl which is substituted by E and/or interrupted by D;
• or
• R11′ and R12, R12′ and R13, R15′ and R16, and/or R16′ and R17, are each a divalent group L1 selected from an oxygen atom, an sulfur atom, >CR18R19>SiR18R19, or
• R18 and R19 are independently of each other C1-C18alkyl;
• C1-C18alkoxy, C6-C18aryl;
• C7-C18aralkyl;
• R11 and R11′, R12 and R12′, R13 and R13′, R13′ and R14, R14 and R15, R15 and R15′, R16 and R16′, and/or R17′ and R17, are each a divalent group
• R30, R31, R32, R33, R49 and R50 are independently of each other H, C1l-C18alkyl;
• C1l-C18alkyl, which is substituted by E and/or interrupted by D;
• E;
• C6-C,8aryl;
• C6-C18aryl, which is substituted by E;
• D is —CO—;
• —COO—;
• —OCOO—;
• —S—;
• —SO—;
• —SO2—;
• —O—;
• —NR5—;
• SiR61R62—;
• —POR5—;
• —CR63═CR64—;
• or —C≡C—;
• E is —OR5;
• —SR5;
• —NR5R6;
• —COR8;
• —COOR7;
• —OCOOR7, —CONR5R6;
• —CN;
• or halogen;
• G is E, or C1-C18alkyl,
• wherein R5 and R6 are independently of each other C6-C18aryl;
• C6-C18aryl which is substituted by C1-C18alkyl, C1-C18alkoxy;
• or C1-C18alkyl which is interrupted by —O—;
• or R5 and R6 together
• form a five or six membered ring,
• R7 is C6-C18aryl;
• C6-C18aryl which is substituted by C1-C18alkyl, C1-C18alkoxy;
• or C1-C18alkyl which is interrupted by —O—;
• R8 is C7-C12alkylaryl;
• C1-C18alkyl;
• or C1-C18alkyl which is interrupted by —O—;
• R61 and R62 are independently of each other C6-C18aryl;
• C6-C18aryl which is substituted by C1-C18alkyl, C1-C18alkoxy;
• or C1-C18alkyl which is interrupted by —O—, and
• R63 and R64 are independently of each other H, C6-C18aryl;
• C6-C18aryl which is substituted by C1-C18alkyl, C1-C18alkoxy;
• or C1-C18alkyl which is interrupted by —O—.