Transition metal complex and light-emitting device
View Patent ↗A light-emitting device comprising a pair of electrodes and one or more organic layers disposed between the electrodes, the one or more organic layers comprising a light-emitting layer. At least one of the organic layers comprises a transition metal complex containing a moiety represented by the following formula (1): wherein M 11 represents a transition metal ion; and R 11 , R 12 , R 13 , R 14 , R 5 , R 16 and R 17 represent a substituent or a single bond, respectively, or a tautomer thereof.
1. A light-emitting device comprising a pair of electrodes and one or more organic layers disposed between said electrodes, said one or more organic layers comprising a light-emitting layer, wherein at least one of said one or more organic layers comprises a transition metal complex containing a moiety represented by the following formula (3):
wherein M 31 represents a transition metal ion; Y 31 represents a nitrogen atom or a substituted or unsubstituted carbon atom; Q 31 and Q 32 represent an atomic group forming a nitrogen-containing heterocyclic ring, respectively; L 31 represents a ligand; X 31 represents a counter ion; m31 represents an integer of 1 to 4; m32 represents an integer of 0 to 3; and m33 represents an integer of 0 to 4.
2. The light-emitting device according to claim 1 , wherein said transition metal complex is represented by the following formula (6):
wherein R 61 and R 62 represent a hydrogen atom or a substituent, respectively; R 63 , R 64 and R 65 represent a substituent, respectively; and n61, n62 and n63 represent an integer of 0 to 4, respectively.
3. The light-emitting device according to claim 1 , wherein said transition metal complex is represented by the following formula (13):
wherein R 301 , R 302 , R 303 , R 304 , R 305 , R 306 , R 307 , R 308 , R 311 , R 312 , R 313 , R 314 , R 315 and R 316 represent a hydrogen atom or a substituent, respectively.
4. The light-emitting device according to claim 1 , wherein said transition metal complex is represented by the following formula (19):
wherein R 901 , R 902 , R 903 , R 904 , R 905 , R 906 , R 907 , R 908 , R 912 , R 913 , R 914 , R 915 and R 916 represent a hydrogen atom or a substituent, respectively, R 901 , R 902 , R 903 , R 904 , R 905 , R 906 , R 907 , R 908 , R 912 , R 913 , R 914 , R 915 , and R 916 being free of a transition metal ion or a transition metal atom.
5. The light-emitting device according to claim 1 , wherein said transition metal complex is represented by the following formula (20):
wherein Y 921 and Y 922 represent a nitrogen atom or a substituted or unsubstituted carbon atom, respectively; and R 922 , R 923 , R 924 , R 925 and R 926 represent a hydrogen atom or a substituent, respectively.