Materials for light emitting devices consisting of novel compounds and light emitting devices using the same

A light emitting device comprising a light emitting layer or a plurality of thin organic compound layers containing a light emitting layer formed between a pair of electrodes, wherein at least one layer is a layer containing at least one compound represented by the following formula (IA):

• wherein R11, R12 and R13 each represents a hydrogen atom, an aliphatic hydrocarbon group, an aryl group or a heterocyclic group;
• L1 is selected from the group consisting of a single bond, alkylene, alkenylene, alkynylene, arylene and a divalent aromatic heterocyclic group selected from the group consisting of:
• R11 and R12, R11 and L1 and R12 and L1 may each combine with each other to form a ring when possible;
• R14, R15, R16 and R17 each represents a hydrogen atom or a substituent;
• and R13 to R17 may each combine with each of R11 to R17 or L1 to form a ring when possible.