TD-DFT study on fluoride-sensing mechanism of 2-(2′-phenylureaphenyl)benzoxazole: the way to inhibit the ESIPT process
文献情報
The fluoride-sensing mechanism of the sensor 2-(2′-phenylurea-phenyl)benzoxazole (PUBO) has been investigated by means of the TD-DFT method. The present theoretical study indicates that there is an excited-state intramolecular proton transfer (ESIPT) process in the sensor PUBO. The added fluoride anion could capture the proton in the free N–H moiety instead of the hydrogen-bonding one. The experimental UV/Vis and fluorescence spectra (J. Org. Chem. 2007, 72, 62) are well reproduced by the calculated vertical excitation energies in the ground state and the first singlet excited state. For example, the calculated emission wavelength of PUBO at 534 nm is very close to the fluorescence band at 554 nm. Furthermore, we theoretically confirmed that the added fluoride anions could inhibit the ESIPT process in PUBO. But different from the classical ESIPT-inhibition mechanism, the ESIPT process in the sensor PUBO is inhibited by the high energy barrier of its deprotonated form rather than by the absence of the transferred proton.
関連文献
Applications of N′-monofunctionalised TsDPEN derivatives in asymmetric catalysis
Jonathan Barrios-Rivera, Yingjian Xu, Martin Wills
DOI: 10.1039/C8OB02889C
Examining the vinyl moiety as a protecting group for hydroxyl (–OH) functionality under basic conditions
Vladimir V. Voronin, Maria S. Ledovskaya
DOI: 10.1039/D0QO00202J
Synthesis of a non-natural glucose-2-phosphate ester able to dupe the acc system of Agrobacterium fabrum
Si-Zhe Li, Armelle Vigouroux, Mohammed Ahmar, Abbas El Sahili, Laurent Soulère, Laïla Sago, David Cornu, Solange Moréra, Yves Queneau
DOI: 10.1039/C8OB03086C
Organocatalytic 1,5-trifluoromethylthio-sulfonylation of vinylcyclopropane mediated by visible light in the water phase
Junkai Liu, Hong Yao, Xinnan Li, Hongyu Wu, Aijun Lin, Hequan Yao, Jinyi Xu, Shengtao Xu
DOI: 10.1039/D0QO00343C
Straight access to highly fluorescent angular indolocarbazoles via merging Au- and Mo-catalysis
Fernando Martínez-Lara, Anisley Suárez, Samuel Suárez-Pantiga, M. José Tapia, Roberto Sanz
DOI: 10.1039/D0QO00405G
The protecting group enabled para-selective C–H benzylation of anilides via iron(ii) catalysis: a convenient approach for the synthesis of triarylmethanes
Yi Han, Guobao Li, Lingling Liu, Chenyang Dai, Da-Qing Shi, Yingsheng Zhao
DOI: 10.1039/D0QO00402B
Asymmetric organocatalytic double 1,6-addition: rapid access to chiral chromans with molecular complexity
Sourav Roy, Suman Pradhan, Krishan Kumar, Indranil Chatterjee
DOI: 10.1039/D0QO00354A
Synthesis of naphtho[1′,2′:4,5]imidazo[1,2-a]pyridines via Rh(iii)-catalyzed C–H functionalization of 2-arylimidazo[1,2-a]pyridines with cyclic 2-diazo-1,3-diketones featuring with a ring opening and reannulation
Bin Li, Nana Shen, Yujie Yang, Xinying Zhang, Xuesen Fan
DOI: 10.1039/D0QO00073F
Rh-Catalyzed diastereoselective desymmetrization of enone tethered-cyclohexadienones via tandem arylative cyclization‡
DOI: 10.1039/C8OB02284D
こちらもおすすめ
環戊烷-1,3-二甲酸甲酯はどのように合成されますか?
環戊烷-1,3-二甲酸甲酯は、環戊烷と塩酸によるヒンデンブルク反応を経由して合成されます。この反応では、環戊烷が塩酸と作用し、1,3-ジカルボキシ基が導入されま...
4-メトキシ-1,2,3-スチアゼ-3,5-ジオンとは何ですか?
4-メトキシ-1,2,3-スチアゼ-3,5-ジオンは、CAS番号107843-77-6の化合物で、(E)-ベンジル3-(3,4-ジヒドロキシフェニル) acry...
プロスタグランジンA2について「に適用される法規ガイドラインは何ですか?'
プロスタグランジンA2 (CAS番号: 41691-92-3) は、化学物質の安全管理に関する規制として、GHS (危険物質の国際的ハザード分類・ラベル付けシス...
4-アミノ-1-ナフタレン sulfonic 酸についての物理化学的性質は何ですか?
4-アミノ-1-ナフタレン sulfonic 酸のCAS番号は84-86-6です。この化合物は結晶性で、分子量は212.15 g/molです。アルコールや水など...
N-GlcNAc-生物素を取り扱う際の実験室安全事項は何ですか?
N-GlcNAc-生物素は吸収性があり、皮膚や目への接触を避けることが重要です。PPE(個体保護具)は使用し、ドラフトチャンバーは必要に応じて使用します。漏洩時...
3-アミノメチルフローラノピペリジン-1-カルボニル酸テルブチルエステルとは何ですか?
CAS番号1209781-11-2の3-アミノメチルフローラノピペリジン-1-カルボニル酸テルブチルエステルは、有機化合物の一種で、化学式はC10H17FNO3...
6-溴-1-甲基-1H-ベンゾ[d][1,2,3]三氮唑はどのように合成されますか?
6- bromo-1-methyl-1H-benzotriazoleは、ブロモフリオリンと1-メチル-1H-ベンゾ[d][1,2,3]三氮唑の反応により合成され...
4-硫代尿苷はどのように合成されますか?
4-硫代尿苷は、尿素とD-リボシルヒドロキシアルデヒドを用いてスルホン化反応を経て合成されます。通常は塩酸ヒドロキシチオニルスルホン酸などの触媒を使用し、選択性...
ブレインナトリユリックペプチド32ラットとは何ですか?
ブレインナトリユリックペプチド32ラット(CAS番号: 133448-20-1)は、心臓で作られるホルモンの一つで、心不全の診断や予後評価に使用されます。
1-(3-氮杂啶)-4-羟基哌啶双盐酸盐の物理化学的性質は何ですか?
CAS番号810680-60-5の1-(3-氮杂啶)-4-羟基哌啶双盐酸盐は、白色の結晶性粉末である。分子量は360.84 g/molで、水に溶けやすい。反応活...
掲載誌
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.










![N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-beta-phenyl-L-phenylalanine structure N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-beta-phenyl-L-phenylalanine structure](https://static.chemtradehub.com/structs/201/201484-50-6-c2fc.webp)



