Organic electroluminescence element and silicon compound
View Patent ↗An organic electroluminescence element, which contains at least one organic layer that includes a luminescent layer between a pair of electrodes, wherein the organic layer contains at least one compound represented by formula (1): wherein R 11 and R 12 each independently represent an aryl or heteroaryl group; when R 11 or R 12 is a phenyl group, it has no nitrogen-containing heterocyclic group on R 11 or R 12 as a substituent; Ar 11 and Ar 12 each independently represent a group represented by formula (2): wherein Ar 21 represents an arylene or heteroarylene group; R 21 , R 22 , R 23 , and R 24 each independently represent a substituent or a hydrogen atom; L 2 represents a substituted or unsubstituted o-arylene or vinylene group, —NR— (R represents a substituent), —O—, or —S—; and m is 0 or 1.
1. An organic electroluminescence element, comprising at least one organic layer that includes a luminescent layer between a pair of electrodes, wherein said organic layer contains at least one compound represented by formula (3) or (4):
wherein R 31 , R 32 , R 33 , R 34 , R 35 , R 36 , R 41 , R 42 , R 43 , R 44 , R 45 , and R 46 each independently represents an alkyl group, an aryl group, or a substituent bonding with each other to form an aromatic ring; a, b, g, and h each independently represents an integer from 0 to 4; c and d each independently represents an integer from 0 to 8; i and j each independently represents an integer from 0 to 2; and e, f, k, and l each independently represents an integer from 0 to 5.
2. The organic electroluminescence element according to claim 1 , wherein in formula (3), R 31 , R 32 , R 33 , R 34 , R 35 , and R 36 each independently represents an aryl group; c and d each independently represents an integer from 0 to 4; and a, b, e and f each independently represents an integer from 0 to 1.
3. The organic electroluminescence element according to claim 1 , wherein in formula (4), R 41 , R 42 , R 45 , and R 46 each independently represents an aryl group; R 43 and R 44 each independently represents a substituent bonding with each other to form an aromatic ring; i and j each independently represents an integer from 1 to 2; and g, h, k, and l each independently represents an integer from 0 to 1.
4. A compound represented by formula (3) or (4):
wherein R 31 , R 32 , R 33 , R 34 , R 35 , R 36 , R 41 , R 42 , R 43 , R 44 , R 45 , and R 46 each independently represents an alkyl group, an aryl group, or a substituent bonding with each other to form an aromatic ring; a, b, g, and h each independently represents an integer from 0 to 4; c and d each independently represents an integer from 0 to 8; i and j each independently represents an integer from 0 to 2; and e, f, k, and l each independently represents an integer from 0 to 5.
5. The compound according to claim 4 , wherein the compound is a compound represented by formula (3), wherein R 31 , R 32 , R 33 , R 34 , R 35 , and R 36 each independently represents an aryl group; c and d each independently represents an integer from 0 to 4; and a, b, e and f each independently represents an integer from 0 to 1.
6. The compound according to claim 4 , wherein the compound is a compound represented by formula (4), wherein R 41 , R 42 , R 45 and R 46 each independently represents an aryl group; R 43 and R 44 each independently represents a substituent bonding with each other to form an aromatic ring; i and j each independently represents an integer from 1 to 2; and g, h, k, and l each independently represents an integer from 0 to 1.
7. The organic electroluminescence element according to claim 1 , wherein R 43 and R 44 each independently represents a substituent forming a condensed benzene ring; and wherein each of a, b, c, d, e, f, g, h, k, and l is 0.