Phenylanthracene derivative and organic EL element
AssigneeTDK Corporation
InventorsTetsushi Inoue, Kenji Nakaya
Life of this patent
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Abstract
Phenylanthracene derivatives of the formula: A.sub.1 --L--A.sub.2 wherein A.sub.1 and A.sub.2 each are a monophenylanthryl or diphenylanthryl group and L is a valence bond or a divalent linkage group, typically arylene are novel opto-electronic functional materials. They are used as an organic compound layer of organic EL device, especially a light emitting layer for blue light emission.
Claims12
An organic electroluminescent element comprising at least one organic compound layer, said layer comprising a phenylanthracene derivative of formula (1):
- A.sub.1 --L--A.sub.2 ( 1)
- wherein each of A.sub.1 and A.sub.2, which may be identical or different, is a monophenylanthryl or diphenylanthryl group, and L is a valence bond or a divalent linkage group.
A phenylanthracene derivative which is of the following formula (2):
- ##STR103## wherein each of R.sub.1 and R.sub.2, which may be identical or different, is selected from the group consisting of an alkyl, cycloalkyl, aryl, alkenyl, alkoxy, aryloxy, amino and heterocyclic group,
- each of r.sub.1 and r.sub.2 is 0 or an integer of 1 to 5,
- wherein when r.sub.1 is an integer of at least 2, the R.sub.1 groups may be identical or different or the R.sub.1 groups, taken together, may form a ring, and
- wherein when r.sub.2 is an integer of at least 2, the R.sub.2 groups may be identical or different or the R.sub.2 groups, taken together, may form a ring, and
- L.sub.1 is a valence bond or an arylene group which may have an intervening group in the form of an alkylene group, --O--, --S--, or --NR-- wherein R is an alkyl or aryl group.
A phenylanthracene derivative which is of the following formula (3):
- ##STR104## wherein each of R.sub.3 and R.sub.4, which may be identical or different, is selected from the group consisting of an alkyl, cycloalkyl, aryl, alkenyl, alkoxy, aryloxy, amino and heterocyclic group,
- each of r3 and r4 is 0 or an integer of 1 to 5, r3+r4 being at least 1, and
- wherein when r3 is an integer of at least 2, the R.sub.3 groups may be identical or different or the R.sub.3 groups taken together, may form a ring, and
- wherein when r.sub.4 is an integer of at least 2, the R.sub.4 groups may be identical or different or the R.sub.4 groups, taken together, may form a ring, and
- L.sub.2 is a valence bond or an arylene group which may have an intervening group in the form of an alkylene group, --O--, --S--, or --NR-- wherein R is an alkyl or aryl group.
A phenylanthracene derivative which is of the following formula (3):
- ##STR105## wherein each of R.sub.3 and R.sub.4, which may be identical or different, is selected from the group consisting of an alkyl, cycloalkyl, aryl, alkenyl, alkoxy, aryloxy, amino and heterocyclic group,
- each of r.sub.3 and r.sub.4 is 0 or an integer of 1 to 5,
- wherein when r.sub.3 is an integer of at least 2, the R.sub.3 groups may be identical or different or the R.sub.3 groups, taken together, may form a ring, and
- wherein when r.sub.4 is an integer of at least 2, the R.sub.4 groups may be identical or different or the R.sub.4 groups, taken together, may form a ring, and
- L.sub.2 is or an arylene group which may have an intervening group in the form of an alkylene group, --O--, --S--, or --NR-- wherein R is an alkyl or aryl group.
A phenylanthracene derivative which is of the following formula (3):
- ##STR106## wherein each of R.sub.3 and R.sub.4, which may be identical or different, is selected from the group consisting of an alkyl, cycloalkyl, aryl, alkenyl, alkoxy, aryloxy, amino and heterocyclic group,
- each of r.sub.3 and r4 is an integer of 1 to 5,
- wherein when r.sub.3 is an integer of at least 2, the R.sub.3 groups, may be identical or different or the R.sub.3 groups, taken together, may form a ring, and
- wherein when r.sub.4 is an integer of at least 2, the R.sub.4 groups, may be identical or different or the R.sub.4 groups, taken together, may form a ring, and
- L.sub.2 is a valence bond or an arylene group which may have an intervening group in the form of an alkylene group, --O--, --S--, or --NR-- wherein R is an alkyl or aryl group.
Dependencies are inferred from the claim text.