Electroluminescent device

An electroluminescent device comprising:

• a) an anode
• b) a hole injecting layer and/or hole transporting layer
• c) a light emitting layer
• d) an electron transporting layer and
• e) a cathode,
• wherein c) comprises an organic compound of formula I
• wherein V is H, X is C1-C18alkyl or
• W is
• and Y is
• wherein one of the groups W1 to W5 or Y1 to Y5 is naphthyl or pyridyl, or naphthyl or pyridyl substituted by —OR5, halogen, —NR5R6, C1-C18alkyl, C1-C18alkyl substituted by halogen or C1-C18alkyl interrupted by —O—;
• and the remaining groups W1 to W5 and Y1 to Y5 and the groups X1 to X5 are independently of each other H, phenyl, biphenyl, naphthyl or pyridyl, or phenyl, biphenyl, naphthyl or pyridyl substituted by —OR5, —NR5R6, halogen, C1-C18alkyl, C1-C18alkyl substituted by halogen or C1-C18alkyl interrupted by —O—;
• wherein R5 and R6 are independently of each other H, C6-C18aryl, C6-C18aryl which is substituted by C1-C18alkyl, C1-C18alkyl or C1-C18alkyl which is interrupted by —O—;
• or R5 and R6 together form a five or six membered ring.