Abstract:
본 발명에 따른 플루오렌 기를 함유하고 그 플루오렌 기의 양단에 황 원자를 포함하는 화합물로서 고체 및 용액 상태에서 청색 발광을 하여 유기 전자발광 장치에 사용되는 발광 화합물은 하기의 구조식 1로 표시된다: [구조식 1]
상기 식에서, R 1 및 R 2 는 각각 독립된 탄소수 1 내지 20의 알킬기 또는 탄소수 1 내지 20의 알콕시기이고, R 3 은 같거나 다른 알릴기, 헤테로사이클기 또는 알리파틱 탄화수소기이며, 그리고 R 4 는 탄소수 1 내지 20의 알킬기, 탄소수 6 내지 20의 아릴기, 탄소수 1 내지 20의 알킬기를 갖는 탄소수 6 내지 20의 아릴기, 또는 탄소수 1 내지 20의 알콕시기를 갖는 탄소수 6 내지 20의 알릴기이고, n은 0 내지 2의 정수이고, m은 1 내지 3의 정수이다.
Abstract:
PURPOSE: Quinoline compounds showing excited-state intramolecular proton transfer(ESIPT) are provided. The compounds show various colors in electroluminescence as insertion of a functional group into a quinoline structure, improve the luminescence efficient and increase the luminescence period. CONSTITUTION: A quinoline monomer represented by the formula(2) is provided, wherein X is -OH or -OCH3. A quinoline dendrimer represented by the formula(3a) is provided, wherein X is selected from a compound of the formulas(3b to 3d); and Y is -H or a compound of the formula(3b). A quinoline polymer represented by the formula(4) is provided, wherein X and Y are independently -H or -OH. A method for producing the quinoline monomer of the formula(2) comprises the steps of: mixing metacresol and P2O5; and adding bisaminoketone and 2-hydroxy-4-methoxyacetophenone.
Abstract:
PURPOSE: An iridium complex is provided to enable use as excellent red emitting material with ELmax in 600~660 nm wavelength area and to ensure excellent property. CONSTITUTION: An iridium complex is represented by chemical formula 1. In chemical formula 1, R1, R2, and R3 are C1~10 aliphatic or aromatic hydrocarbon; and R4 and R5 are independently selected from hydrogen, halogen, cyano, C1-20 alkyl, alkoxy, alkylthio, alkylamino, heteroalkyl, C2-20 alkenyl and alkynyl, C6-30 aryl, arylthio, aryloxy, arylamino, C3-30 heteroaryl, heteroaryloxy, heteroarylthio, and heteroaryl amino group; and X is oxygen(O) or sulfur(S).
Abstract:
디브로모벤젠을 -78℃ THF 용액에서 n -BuLi으로 리튬처리한 후 실온의 THF 용액에서 디메시틸보론 플루오라이드로 처리하여 보릴 페닐 브롬마이드를 생성하고, 이를 다시 2-(tributylstannyl)pyridine과 Pd(PPh 3 ) 4 와 함께 톨루엔에 용해시켜 환류시키면서 Pd-촉매 Stille 반응을 통하여 킬레이트 리간드로 변형하고, 이를 다시 아르곤(Ar) 포화 상태에서 140 ℃의 2-EtOEtOH:H 2 O 용액에서 리간드와 IrCl 3 ·xH 2 O와의 Nonoyama 반응을 통하여 μ -클로라이드-브릿지 Ir(Ⅲ) 다이머(dimer)를 생성한 후, 아르곤(Ar) 포화 상태에서 140 ℃의 2-EtOEtOH 용액에서 탄산나트륨의 도움으로 염소를 2,4-펜탄디온으로 치환시켜 보릴 기-함유 헤테로렙틱(heteroleptic) Ir(Ⅲ) 착체(1)를 얻는다. 본 발명의 이리듐(Ⅲ) 착체(1)는 톨루엔, 이염화클로로포름(CH 2 Cl 2 ), 디옥산, 아세토니트릴과 같은 일반 유기 용매에 상당히 높은 용해도를 나타낸다. 플루오르 이온 검출, 인광성 이리듐 착체, 음이온 센싱
Abstract:
An organic fluorescent compound is provided to improve the fluorescence by external stimulus such as pressure, heat and light or to diversify the fluorescence color by changing only the molecular arrangement. An organic fluorescent compound is indicated as the following chemical formula (I) and is improved by the external stimulus, or is indicated as the following chemical formula (II) and is changed with the external stimulus. In the chemical formula (I), R is C-CF3, R1 is CN, R2 is H; or R is C-CF3, R1 is H, R2 is CN; or R is N, R1 is H, R2 is CN. In the chemical formula (II), R is O-(CH2)4, R1 is CN, R2 is H; or R is O-(CH2)4, R1 is H, R2 is CN.
Abstract:
The iridium(Ir)(III)-based high degree phosphorescent fluoride receptor is provided to increase solubility in organic solvent such as toluene, methylene chloride(CH2Cl2), dioxane and acetonitrile, and detect fluoride with high selectivity and sensitivity in the solution state at room temperature. A method for manufacturing the iridium(Ir)(III)-based high degree phosphorescent fluoride receptor comprises the steps of: lithium-treating dibromobenzene in THF(tetrahydrofuran) solution at -78 deg. C with n-BuLi and treating it in THF at room temperature with dimethyl boron fluoride to create boryl phenyl bromide; dissolving the boryl phenyl bromide together with 2-(tributylstenyl)pyridine and Pd(PPh3)4 in toluene, and converting it into chelate ligand through Pd-catalyst Stille reaction; reacting the chelate ligand with IrCl3.xH2O through Nonoyama in 2-EtOEtOH:H2O solution at 140 deg. C under argon(Ar) saturated condition to create mu-chloride-bridge Ir(III) dimer; and substituting chloride by 2,4- pentanedione by aid of sodium carbonate in 2-EtOEtOH solution at 140 deg. C under argon(Ar) saturated condition.
Abstract:
A rewritable fluorescence memory film, and a non-destructive writing/reading/erasing method using the same are provided to repeat data recording and erasing on a fluorescence memory film of polymer composite containing fluorescent material with high Stokes' shift and BTE photochromic compound. A rewritable fluorescence memory film is formed by applying coating material on a substrate, wherein the coating material contains 10 to 30wt.% composite of fluorescent material and photochromic compound and 90 to 70wt.% matrix polymer dissolved. The fluorescent material, which is excited-state intramolecular proton transfer compound, has a maximum absorption wavelength in a range of 410 to 430nm, a maximum fluorescence emission wavelength in a range of 450 to 700nm, and a difference between the maximum absorption wavelength and maximum fluorescence emission wavelength(Stokes' Shift) in a range of 20 to 290nm. The photochromic compound emits color under irradiation of ultraviolet rays having a wavelength of 400nm or less.
Abstract:
Provided are an iridium complex compound, which is capable of color control over the full luminescence region and has an excellent luminous efficiency, and an organic electrophosphorescent device using the same, which embodies full visible colors and white color through a photophysical process system. The iridium complex compound having a structure of a formula 1 follows a photophysical process luminescence mechanism in which an excitation from an iridium to a singlet state(MLCT^1, metal to ligand charge transfer) of the ligand(L) in the formula 1 occurs, inter-system crossing from the singlet state to a triplet state(MLCT^3) is generated by strong spin-orbit coupling, and inter-ligand energy transfer(ILET) to an energy level of an ancillary ligand(A) lower than the triplet state occurs.