| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic electroluminescent element achieving both enhancement of luminous brightness and durability by using a cyclododecene compound as a host compound for phosphorescence and as an electron transporting material (hole blocker). SOLUTION: The organic electroluminescent element contains at least one kind of compound expressed in a chemical formula [1], in which, R<SB>1</SB>to R<SB>3</SB>independently denote a hydrogen atom or a substituent group, n, m, and p denote an integer of 0 to 4, and R<SB>4</SB>to R<SB>6</SB>independently denote a hydrogen atom or a substituent group. COPYRIGHT: (C)2004,JPO
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