| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a composition affording devices having good light emission characteristics or photoelectric characteristics, and excellent life characteristics. <P>SOLUTION: The composition comprises a metal complex containing a partial structure represented by formula (1) (wherein, M represents a transition metal atom; ring A represents a 5- or a 6-membered ring, or a condensed ring thereof; and R<SP>1</SP>to R<SP>6</SP>represent each an alkyl group, an alkoxy group or the like). <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
