| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic electroluminescent element having high brightness and high light-emitting efficiency. SOLUTION: On organic layer such as a light-emitting layer includes a polynuclear metal complex represented by formula (1). In formula (1), M is Pt, etc., Y is a nonmetallic element of a periodic table 14 group, etc., X<SB>1</SB>and X<SB>2</SB>are ring-like organic groups and R<SB>1</SB>-R<SB>16</SB>are alkyl groups, etc,. COPYRIGHT: (C)2005,JPO&NCIPI
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