The role of intersystem crossing in the deactivation of the singlet excited aminofluorenones
文献情報
László Biczók, Tibor Bérces, Tomoyuki Yatsuhashi, Hiroshi Tachibana, Haruo Inoue
Solvent and substituent effects on the competition between internal conversion and triplet formation were studied systematically for aminofluorenones and their N-methylated derivatives. Intersystem crossing (ISC) was found to be the dominant process for the singlet excited 1-amino- and 1-methylaminofluorenone in all solvents. The short fluorescence decay time of these compounds does not originate from intramolecular hydrogen bonding induced internal conversion but it is due to the fast triplet formation. Rather slow (kISC⩽4.8 × 107 s−1) and solvent insensitive intersystem crossing characterizes the photophysical behavior of 2-, 3- and 4-aminofluorenones but their internal conversion rate strongly increases with solvent polarity. The change of the internal conversion rate constants with molecular structure and solvent can be rationalized in terms of the energy gap law.
おすすめジャーナル
関連文献
Two-photon absorption in a series of 2,6-disubstituted BODIPY dyes
Leonardo W. T. Barros, Thiago A. S. Cardoso, Angela Bihlmeier, Dominik K. Kölmel, Carlos H. Brito Cruz, Lazaro A. Padilha
DOI: 10.1039/C6CP07849D
Ferrocene and ferrocenium inclusion compounds with cucurbiturils: a study of metal atom dynamics probed by Mössbauer spectroscopy
Clara I. R. Magalhães, Ana C. Gomes, André D. Lopes, Isabel S. Gonçalves, Martyn Pillinger, Eunyoung Jin, Ikjin Kim, Young Ho Ko, Israel Nowik, Rolfe H. Herber
DOI: 10.1039/C7CP04416J
Long-range surface plasmon resonance and surface-enhanced Raman scattering on X-shaped gold plasmonic nanohole arrays
Daniel David Galvan, Guowen Meng, Qiuming Yu
DOI: 10.1039/C7CP04564F
How do ligands influence the quantum yields of cyclometalated platinum(ii) complexes, a theoretical research study
Baozhu Yang, Shuang Huang, Jianhao Wang
DOI: 10.1039/C7CP02710A
A simple bulk modulus model for crystal materials based on the bond valence model
Xiao Liu, Hao Wang, Weimin Wang, Zhengyi Fu
DOI: 10.1039/C7CP03739B
Defluorination and covalent grafting of fluorinated graphene with TEMPO in a radical mechanism
Wenchuan Lai, Dazhou Xu, Xu Wang, Zaoming Wang, Yang Liu, Xiaojiao Zhang, Yulong Li, Xiangyang Liu
DOI: 10.1039/C7CP04439A
A DFT study of the interplay between dopants and oxygen functional groups over the graphene basal plane – implications in energy-related applications
Ana S. Dobrota, Igor A. Pašti
DOI: 10.1039/C7CP00344G
An insight into methanol oxidation mechanisms on RuO2(100) under an aqueous environment by DFT calculations
Tian Sheng, Jin-Yu Ye, Wen-Feng Lin, Shi-Gang Sun
DOI: 10.1039/C6CP08522A
Solvent diffusion in polymer-embedded hollow nanoparticles studied by in situ small angle X-ray scattering
Zhi Hong Chen, Sun Hye Hwang, Xiang-bing Zeng, Jongmin Roh, Jyongsik Jang
DOI: 10.1039/C7CP03741D
Deciphering the photosensitization mechanisms of hypericin towards biological membranes
DOI: 10.1039/C7CP03723F
こちらもおすすめ
「邻羟基阿托伐他汀内酯标准品」に適用される法規ガイドelinesは何ですか?
CAS番号163217-74-1の「邻羟基阿托伐他汀内酯标准品」は、GHS分類では危険物に分類されず、主にREACH規則とFDA/EPAの管理対象となります。R...
メチル(3R)-3-アミノ-2,3-ジヒドロ-1-ベンゾファンラニン-5-カルボイル酸塩塩酸塩の主な用途は何ですか?
メチル(3R)-3-アミノ-2,3-ジヒドロ-1-ベンゾファンラニン-5-カルボイル酸塩塩酸塩は、医薬品や合成化学の研究に広く用いられます。また、特定の薬物の前...
トランス-4-メチルピロリジン-3-オール塩酸塩はどのように合成されますか?
トランス-4-メチルピロリジン-3-オール塩酸塩は、4-メチルピロリジンの塩酸塩化によって合成されます。一般的な合成方法では、4-メチルピロリジンを塩酸に加えて...
硫雜環丁烷-1,1-二氧化物は安全ですか?
硫雜環丁烷-1,1-二氧化物は安全ではありません。毒性は報告されていませんが、高温下で分解し、可燃性があるため、高圧ガスは注意が必要です。密閉した容器で保管し、...
9-ヒドロキシエリプチシネ塩酸塩はどのように合成されますか?
9-ヒドロキシエリプチシネ塩酸塩は、エリプチシネから塩酸を添加することで合成されます。選択性は高いですが、収率は約70%です。
5-塩素-2-(メチルアミノ)フェニル-(2-塩素フェニル)メタン酮の物理化学的性質は何ですか?
5-塩素-2-(メチルアミノ)フェニル-(2-塩素フェニル)メタン酮のCAS番号は5621-86-3です。この化合物は白色の結晶性粉末で、分子量は415.03で...
1-[2-(4-甲氧基-苯氧基)-乙基]-哌嗪はどのように保存すればよいですか?
1-[2-(4-甲氧基-苯氧基)-乙基]-哌嗪は、直射日光を避けて暗所に、室温(15-25℃)で保管し、密閉容器に入れることで安定性を保つことができます。
2-[3-(4-甲氧基フェニル)プロピル]-4,4,5,5-四メチル-1,3,2-ドイボロロールアンの主な用途は何ですか?
2-[3-(4-甲氧基フェニル)プロピル]-4,4,5,5-四メチル-1,3,2-ドイボロロールアンは、医薬品の合成、有機合成化学、および新材料の研究で使用され...
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.














![5-Bromo-1H-pyrrolo[2,3-b]pyridine structure 5-Bromo-1H-pyrrolo[2,3-b]pyridine structure](https://static.chemtradehub.com/structs/183/183208-35-7-2d72.webp)