- 1,8-Naphthalimide-based hybrids for efficient red thermally activated delayed fluorescence organic light-emitting diodes
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The connection of an electron deficient 1,8-naphthalimide acceptor moiety with a phenoxazine or phenothiazine donor moiety afforded 6-(10H-phenoxazin-10-yl)-2-phenyl-1H-benzo[de]isoquinoline-1,3(2H)-dione (PXZ-NAI) and 6-(10H-phenothiazin-10-yl)-2-phenyl-
- Ma, Dongge,Wang, Binyan,Wang, Qiang,Wang, Tao,Zheng, Yuanyuan
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Read Online
- High-contrast colourimetric probes for fluoride and trace water based on tautomerization of naphthalimide and application in fingerprint imaging
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Three probes for fluoride ion and trace water based on naphthalimide were designed and synthesized. A new sensing mechanism based on naphthalimide tautomerization induced by fluoride ion and water was explored in the aprotic organic solvent. In the fluori
- Yan, Xia,Lan, Haichuang,Li, Yang,Yan, Xiaojing,Xing, Qilin,Wang, Wen,Zhang, Jiayu,Xiao, Shuzhang
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Read Online
- Persistent Radical Pairs between N-Substituted Naphthalimide and Carbanion Exhibit pKa-Dependent UV/Vis Absorption
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A new strategy was devised for estimating and screening pKa values among different carbon acids under ambient conditions by using the UV/Vis absorption spectrum of persistent radical pairs (PRPs), which are generated from an N-substituted naphthalimide (NNI) derivative in the presence of various carbanions in organic solutions. The electron paramagnetic resonance (EPR) spectroscopy was used to examine the presence of radicals. Unexpectedly, it was discovered that the UV/Vis spectrum of PRPs reveals a distinct linear relationship between the PRP absorption and the pKa value of a corresponding carbon acid, which is likely due to the energy difference among different RPRs. The finding may offer organic chemists an alternative reference to conduct carbanion-mediated reactions in various organic solutions.
- Nie, Xiancheng,Su, Hao,Chen, Xiaoyu,Huang, Wenhuan,Huang, Linkun,Chen, Biao,Miao, Hui,Jiang, Jun,Wang, Tao,Zhang, Guoqing
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Read Online
- Benzoisoquinoline-1,3-dione acceptor based red thermally activated delayed fluorescent emitters
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A strong electron deficient moiety, benzoisoquinoline-1,3-dione, was applied as an electron acceptor of donor-acceptor type thermally activated delayed fluorescent (TADF) emitters. The connection of the benzoisoquinoline-1,3-dione acceptor moiety with a d
- Yun, Ju Hui,Lee, Jun Yeob
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Read Online
- Dual Naked-Eye Optical Sensor Based on Imidazolium Cation and Napthalamide for Specific Detection of Fluoride
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A novel naked eye fluorescence sensor (ANI) based on naphthalimide and imidazolium moieties for fluoride detection has been designed and synthesized by multiple step synthesis. The fluorescence response of ANI sensor was significantly quenched in the pres
- Kongwutthivech, Jaturong,Tuntulani, Thawatchai,Promarak, Vinich,Tomapatanaget, Boosayarat
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Read Online
- Synthesis and Investigation of Derivatives of 1,8-Naphthalimide with a Red Emission via an Aromatic Nucleophilic Substitution Reaction
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1,8-Napthalimides (NIs) have been widely used as fluorescent molecules in biological, chemical, and medical fields because NIs shows high stability and various fluorescence properties under different conditions. However, NIs typically display a fluorescen
- Ahmad, Aatiya,Cao, Haishi,Jeong, Chul-Hyun,Schmitz, Hannah C.
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- Aggregation-induced emission or aggregation-caused quenching? Impact of covalent bridge between tetraphenylethene and naphthalimide
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Understanding the physical mechanisms governing aggregation-induced-emission (AIE) and aggregation-caused-quenching plays a vital role in developing functional AIE materials. In this work, tetraphenylethene (TPE, a classical AIEgen) and naphthalimide (NI, a popular fluorophore with ACQ characteristics) were connected through non-conjugated linkages and conjugated linkages. We showed that the nonconjugated-linkage of TPE to NI fragments leads to substantial PET in molecular aggregates and ACQ. In contrast, the conjugated connection between TPE and NI moieties results in the AIE phenomenon by suppressing twisted intramolecular charge transfer. This work provides an important guideline for the rational design of AIE materials.
- Ma, Xiaoxie,Chi, Weijie,Han, Xie,Wang, Chao,Liu, Shenghua,Liu, Xiaogang,Yin, Jun
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supporting information
p. 1790 - 1794
(2021/03/08)
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- Fluorescent molecular probe for detecting mercury ions as well as preparation method and application thereof
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The invention discloses a fluorescent molecular probe for detecting mercury ions as well as a preparation method and application thereof, and belongs to the technical field of fluorescent probes. N-phenyl-4-(di(ethylthio ethyl)amino)-1,8-naphthalimide is
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Paragraph 0051-0052
(2020/08/25)
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- ORGANIC LIGHT-EMITTING DISPLAY APPARATUS
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An organic light-emitting display apparatus includes a substrate, an organic light-emitting device disposed above the substrate, and an encapsulation unit disposed above the organic light-emitting device and sealing the organic light-emitting device, wherein the encapsulation unit includes a compound represented by Formula 1. [in-line-formulae][R1-(L1)a1]b1-(Ar1)c1-[(L2)a2-R2]b2.??Formula 1[/in-line-formulae]
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Paragraph 0243
(2019/02/25)
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- Substituted naphthalimide derivatives as well as preparation method and application thereof
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The invention discloses substituted naphthalimide derivatives as well as a preparation method and application thereof. The substituted naphthalimide derivatives have a structure of a general formula D, wherein R1 is selected from n-butyl, phenyl, p-methyl
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Paragraph 0049; 0051; 0052; 0053
(2019/01/21)
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- Naphthalimide derivative containing 4-(alkylbicyclohexyl) substitute, and preparation method and application thereof
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The invention discloses a naphthalimide derivative containing a 4-(alkylbicyclohexyl) substitute, and a preparation method and application thereof. The naphthalimide derivative is of a structure represented by the general formula B, wherein R1 is one of a
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Paragraph 0049; 0051; 0052; 0053
(2019/02/26)
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- Synthesis and photophysical properties of blue-emitting fluorescence dyes derived from naphthalimide derivatives containing a diacetylene linkage group
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Four naphthalimide-based dyes with a diacetylene linkage at the 3- or 4-position were synthesized to improve the thermal stability of the fluorescence dye as well as the efficiency of fluorescent emission at blue region. The absorption and fluorescence properties of the synthesized dyes were also investigated. The geometries and molecular orbitals of the dyes prepared were simulated using by density functional theory and time-dependent density functional theory using Gaussian 09. Furthermore, the suitability of the dyes for application in light-conversion films was examined. N-Phenyl groups were found to have a greater effect on the fluorescence of naphthalimide-based dyes than analogue containing an N-alkyl group. In addition, investigation of the effect of diacetylene linkages at the 3- or 4-positions of naphthalimide-based dyes showed that the fluorescence was influenced by the electron-donating effect of the diacetylene linkage which could afford more conjugation of π orbitals of the dyes. Four blue fluorescence dyes derived from 1,8-naphthalimide containing a diacetylene linkage were synthesized and then coated in PE film. The photophysical properties were analyzed using density functional theory (DFT) calculations, and excitations from the highest occupied molecular orbitals (HOMOs) to the lowest unoccupied molecular orbitals (LUMOs) of the dyes were simulated at the B3LYP/6-31G level of theory via the Gaussian 09 suite of programs. Using these methods, the influences of the position of the ethynyl linkages, alkyl groups, and phenyl groups on the electronic and fluorescence properties of the dyes were also clarified.
- Kim, Kyung-Won,Kim, Geun-Hyeong,Kwon, Su-Hyeon,Yoon, Hyo-In,Son, Jung-Eek,Choi, Jae-Hong
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p. 353 - 361
(2018/06/06)
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- Synthesis and photophysical properties of novel fluorescent materials containing 2,4,6-triphenylpyridine and 1,8-naphthalimide units using Suzuki reaction
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A series of novel 2,4,6-triphenylpyridine derivatives containing 1,8-naphthalimide groups have been prepared in good yields using Suzuki couplings reactions. The relationship of the photoluminescence property of the compounds was systematically investigated via a thermogravimetric analyzer, UV-vis, fluorescence and electrochemical analyzer.
- Liu, Hui-Yan,Chen, Liang-Feng,Wang, Hai-Ying,Wan, Yu,Wu, Hui
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p. 94833 - 94839
(2016/10/21)
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- Tunable and highly efficient light-harvesting antenna systems based on 1,7-perylene-3,4,9,10-tetracarboxylic acid derivatives
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We report the synthesis and excited-state dynamics of a series of five bichromophoric light-harvesting antenna systems, which are capable of efficient harvesting of solar energy in the spectral range of 350-580 nm. These antenna systems have been synthesi
- Dubey, Rajeev K.,Inan, Damla,Sengupta, Sanchita,Sudh?lter, Ernst J. R.,Grozema, Ferdinand C.,Jager, Wolter F.
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p. 3517 - 3532
(2016/06/09)
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- Copper-catalyzed direct N-arylation of naphthalimides using diaryliodonium Salts
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An effective copper-catalyzed N-arylation of naphthal-imides with diaryliodonium salts in toluene at 100 °C has been developed. This cross-coupling reaction gives the desired N-arylated 1,8-naphthalimides in moderate to good yields. The synthetic potentia
- Mao, Song,Guo, Fenglou,Li, Juan,Geng, Xu,Yu, Jianjun,Han, Jianwei,Wang, Limin
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p. 1959 - 1962
(2013/09/24)
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- Comparative analysis of the PET and ICT sensor properties of 1,8-naphthalimides containing aza-15-crown-5 ether moiety
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Novel 4-amino- and 4-(acetyl)amino-N-aryl-1,8-naphthalimides containing aza-15-crown-5 ether receptor unit in the N-aryl fragment and at C-4 of the naphthalimide residue were designed and prepared. Significant internal charge transfer from electron donati
- Panchenko, Pavel A.,Fedorov, Yuri V.,Fedorova, Olga A.,Jonusauskas, Gediminas
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p. 347 - 357
(2013/07/19)
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- TERRYLENE COMPOUNDS, PREPARATION THEREOF AND USE THEREOF IN ORGANIC SOLAR CELLS
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A terrylene compound of the formula I and processes for preparation thereof are disclosed, (I) in which R1, R2, R3 and R4 are each independently selected from hydrogen and in each case unsubstituted or substituted alkyl, aryl, thiophenyl and oligothiophen
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Page/Page column 56-57
(2012/10/07)
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- Synthesis and photochromism of naphthopyrans bearing naphthalimide chromophore: Predominant thermal reversibility in color-fading and fluorescence switch
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Two novel photochromic naphthopyrans containing naphthalimide moieties (Nip1 and Nip2) were studied in solution under flash photolysis conditions, exhibiting highly photochromic response, rapid thermal bleaching rate and good fatigue-resistance. Owing to
- Song, Liwen,Yang, Yuheng,Zhang, Qiong,Tian, He,Zhu, Weihong
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experimental part
p. 14648 - 14658
(2012/03/13)
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- FLUORESCENT BRIGHTENERS, METHODS OF PREPARATION THEREOF, FLUORESCENT BRIGHTENER COMPOSITIONS, AND METHODS OF PREPARATION AND USES THEREOF
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A compound of Formula (I) wherein R1, R2, and R3 are independently at each occurrence hydrogen, a halogen, a cyano functionality, a C1-C20 aliphatic functionality, a C3-C10 cyclo
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Page/Page column 10
(2011/04/18)
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- Synthesis of 4-aziridino [C60]fullerene-1,8-naphthalimide(C 60-NI dyads) and their photophysical properties
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A series of 4-aziridino[C60]fullerene-1,8-naphthalimide (C 60-NI) dyads 4 ([6,6]-closed ring) were synthesized as the only addition product from the reaction of C60 with the corresponding azide compounds 3 under microwave
- Liu, Fengrui,Du, Weiqiong,Liang, Qin,Wang, Yuqin,Zhang, Jianmin,Zhao, Jingwei,Zhu, Shizheng
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scheme or table
p. 5467 - 5471
(2010/08/13)
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- Identification and biological evaluation of a series of 1H-benzo[de]isoquinoline-1,3(2H)-diones as hepatitis C virus NS5B polymerase inhibitors
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The hepatitis C virus (HCV) NS5B RNA-dependent RNA polymerase (RdRp) plays a central role in virus replication. NS5B has no functional equivalent in mammalian cells and, as a consequence, is an attractive target for inhibition. Herein, we present 1H-benzo
- Ontoria, Jesus M.,Rydberg, Edwin H.,Di Marco, Stefania,Tomei, Licia,Attenni, Barbara,Malancona, Savina,Martin Hernando, José I.,Gennari, Nadia,Koch, Uwe,Narjes, Frank,Rowley, Michael,Summa, Vincenzo,Carroll, Steve S.,Olsen, David B.,De Francesco, Raffaele,Altamura, Sergio,Migliaccio, Giovanni,Carfì, Andrea
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experimental part
p. 5217 - 5227
(2010/03/01)
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- Synthesis and optical properties of novel compounds containing carbazole and 1,8-naphthalimide groups
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A series of novel carbazole-naphthalimide compounds with moieties capable of carrier-balance and electroluminescence were synthesised and characterised, and theirs luminescent properties had been studied.
- Feng, Guo-Liang,Ji, Shun-Jun,Geng, Li-Jun,Bian, Bing,Liu, Yu
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scheme or table
p. 137 - 140
(2009/04/10)
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- Matrix screening of substituted N-aryl-1,8-naphthalimides reveals new dual fluorescent dyes and unusually bright pyridine derivatives
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A 3 × 14 matrix of substituted N-aryl-1,8-naphthalimides was synthesized for the evaluation and discovery of dual fluorescence. Because of their unique photophysical properties, these dual fluorescent systems represent an exception to the widely studied T
- Cao, Haishi,Chang, Virginia,Hernandez, Randy,Heagy, Michael D.
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p. 4929 - 4934
(2007/10/03)
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