| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fffd824e7ae31c44a631f7ef6e1dcaf3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2211-1092
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2211-1088
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2211-1044
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2211-1029
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2211-1011
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2211-1007 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D519-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D473-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10K50-11
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10K85-6572
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10K85-657
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10K85-6576
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10K85-6574 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D473-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D519-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L51-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L51-50 |
| filingDate |
2018-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6a7f3a4d6e0bd257d20b619daf6b8f7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5f8a97993b6a6b2a62ebb5ecbbb46794 |
| publicationDate |
2018-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-108690054-A |
| titleOfInvention |
A purine derivative and its organic electroluminescent device |
| abstract |
The invention provides a purine derivative and an organic electroluminescence device thereof, belonging to the technical field of organic photoelectric materials. The compound has a structure shown in formula (I). The heterocyclic compound in the present invention introduces heteroatoms. The heteroatoms in the molecule have factors that determine the HOMO/LUMO level of the nucleus, band gap energy and T1 value; in the specific position of the heterocyclic compound The introduction of an electron-deficient group purine structure is more conducive to accepting electrons, making it have good transport properties; the introduction of a bridging structure can increase the molecular weight of the derivative on the one hand, so that the obtained material has a high glass transition temperature and can prevent crystallization On the other hand, this kind of derivatives have a certain distortion in the three-dimensional structure, which improves their film-forming properties. The organic electroluminescent device made by using the derivative as the host material in the light-emitting layer has the advantages of low driving voltage and high luminous efficiency, and is an organic light-emitting material with excellent performance. |
| priorityDate |
2018-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |