| 摘要 |
PROBLEM TO BE SOLVED: To provide a metal coordination compound exhibiting blue phosphorescence of excellent color purity, a polymer composition, and an organoelectroluminescent element using the same. SOLUTION: The metal coordination compound is represented by either one of formulae (1)-(6) (wherein M is Ir, Rh, Ru, Os, Pd or Pt; n is 2 or 3; when M is Ir, Rh, Ru or Os and n is 2, another bidentate ligand is bonded to M; the ring A is a cyclic compound containing a nitrogen atom bonded to M; X<SB>1</SB>-X<SB>7</SB>are each a hydrogen atom, a halogen atom, a cyano group, a nitro group, a straight chain, cyclic or branched alkyl or halogen-substituted alkyl group, an aryl group, a heteroaryl group, an aralkyl group, a halogen-substituted aryl group, a halogen-substituted heteroaryl group or a halogen-substituted aralkyl group; and the ring A may bear the same substituent group as the groups defined for X<SB>1</SB>-X<SB>7</SB>). COPYRIGHT: (C)2005,JPO&NCIPI
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