METAL COMPLEX COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE CONTAINING THE SAME

摘要

A metal complex compound having a partial structure represented by the general formula: (I) [wherein the moiety B is a benzene ring residue having groups R<1> to R<4> which each independently represent H, etc. provided that at least one of the groups R<1> to R<4> is CN; R<1> may be bonded with R<2>, R<2> with R<3> and R<3> with R<4> to thereby form a ring structure; the moiety A represents a C3-C20 cyclic structure having at least one C=N bond which may have a substituent and may form a ring structure with the above R4 included therein; and M is Ir, Rh, Pt or Pd]. There is further provided an organic electroluminescence device comprising a pair of electrodes and, interposed therebetween, one or multiple organic thin-film layers having at least a light emitting layer, wherein at least one of the organic thin-film layers contains the above metal complex compound. The organic electroluminescence device emits light when voltage is applied between the electrodes with high luminous efficiency, and the service life of the organic electroluminescence device is prolonged.