| 摘要 |
PROBLEM TO BE SOLVED: To provide an organometallic complex emitting phosphorescence. SOLUTION: The invention relates to the organometallic complex having a structure represented by general formula (1). In the general formula (1) each of R<SP>1</SP>and R<SP>2</SP>represents any one of hydrogen, an alkyl group, a halogen group, -CF<SB>3</SB>, an alkoxy group, and an aryl group. M represents an element that belongs to Group 9 or Group 10. An alkyl group having 1 to 4 carbon atoms is preferable in the alkyl group, especially a group selected from a methyl group, an ethyl group, an isopropyl group, sec-butyl, t-butyl group, is preferred. A fluoro group is particularly preferable in the halogen group. An alkoxy group having 1 to 4 carbon atoms is preferable in the alkoxy group, especially a methoxy group is preferred. A phenyl group is particularly preferable in the aryl group. Iridium is particularly preferable among the elements that belong to Group 9, and platinum is particularly preferable among the elements that belong to Group 10. COPYRIGHT: (C)2007,JPO&INPIT
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