Experimental evidence of dual emission in a negatively solvatochromic push–pull pyridinium derivative
文献情報
B. Carlotti, A. Cesaretti, C. G. Fortuna, A. Spalletti, F. Elisei
We report here experimental evidence of dual emission in a cationic push–pull system (bearing a methyl pyridinium group as an electron acceptor and a diphenylamino group as an electron donor), which shows negative solvatochromism. An intriguing blue shift and enlargement of the fluorescence band upon increasing the solvent polarity have suggested a possible contribution of an upper excited state to the stationary emission. Ultrafast transient absorption has indeed revealed the presence of an intermediate transient species in some solvents. The investigation of the fluorescence properties at low temperatures and in the rigid matrix has given a clear indication of this additional emission at shorter wavelengths. Femtosecond up-conversion measurements have shown interesting rise-decay dynamics in the kinetics and two well distinguished emission bands characterized by different deactivations. A single isoemissive point in the time-resolved area-normalized spectra has unambiguously pointed out the presence of two consecutive emissive species: the locally excited and the intramolecular charge transfer excited states.
関連文献
Intrinsic charge-mobility in benzothieno[3,2-b][1]benzothiophene (BTBT) organic semiconductors is enhanced with long alkyl side-chains
M. Alkan, I. Yavuz
DOI: 10.1039/C8CP01640B
The exceptionally large height of the potential barrier at the grain boundary of a LaGaO3-based solid solution deduced from a linear diffusion model
Chih-Yuan S. Chang, Igor Lubomirsky, Sangtae Kim
DOI: 10.1039/C7CP08223A
Direct comparison between subnanometer hydration structures on hydrophilic and hydrophobic surfaces via three-dimensional scanning force microscopy
Chih-Wen Yang, Keisuke Miyazawa, Ing-Shouh Hwang
DOI: 10.1039/C8CP02309C
Pseudorotaxanes in the gas phase: structure and energetics of protonated dibenzylamine–crown ether complexes
Motoki Kida, Daisuke Shimoyama, Toshiaki Ikeda, Ryo Sekiya, Takeharu Haino, Takayuki Ebata, Christophe Jouvet, Yoshiya Inokuchi
DOI: 10.1039/C8CP02707B
The coordinative state of aluminium alkyls in Ziegler–Natta catalysts
Ernst R. H. van Eck, Arno P. M. Kentgens
DOI: 10.1039/C8CP00603B
Q-model of electrode reactions: altering force constants of intramolecular vibrations
Dmitry V. Matyushov, Marshall D. Newton
DOI: 10.1039/C8CP03759K
Synergetic effect of H and He impurities in Ti3AlC2: first principles calculations
Jiajia Liu, Canglong Wang, Xiaolu Zhu, Jitao Liu, Xingming Zhang, Xueqiang Gou, Wenshan Duan, Lei Yang
DOI: 10.1039/C8CP02082E
Oxygen vacancy induces self-doping effect and metalloid LSPR in non-stoichiometric tungsten suboxide synergistically contributing to the enhanced photoelectrocatalytic performance of WO3−x/TiO2−x heterojunction
Weicheng Huang, Jinxin Wang, Lang Bian, Chaoyue Zhao, Danqing Liu, Bin Yang
DOI: 10.1039/C8CP02044B
Adsorption of PAHs on interstellar ice viewed by classical molecular dynamics
Eric Michoulier, Aude Simon, Joëlle Mascetti, Céline Toubin
DOI: 10.1039/C8CP00593A
こちらもおすすめ
4'-ブロモビフェニル-3-メトークシーディ.ActionBarはどのように保存すればよいですか?
4'-ブロモビフェニル-3-メトークシーディ.ActionBarは、冷暗所で、直射日光を避け、密栓の容器に保存し、遠隔場所に保管してください。温度は常温(0〜2...
2-異丙基フェニルヒドラジン塩酸塩とは何ですか?
2-異丙基フェニルヒドラジン塩酸塩は、CAS番号58928-82-8を有する化合物で、構造式はC11H14N2HClです。これは塩基性化合物であり、水に溶けやす...
5-(4-クロロフェニル)-4H-1,2,4-三氮唑-3-アミンを取り扱う際の実験室安全事項は何ですか?
5-(4-クロロフェニル)-4H-1,2,4-三氮唑-3-アミンは取り扱いに注意が必要です。PPEとして防塵マスク、ゴーグル、手袋を使用し、ドラフトチャンバーを...
去甲基雷贝拉唑硫醚はどのように合成されますか?
去甲基雷贝拉唑硫醚は、ベンジミダゾール硫化物と3-メチル-4-ピリジノールの反応によって合成されます。具体的には、2-チオキシドベンジミダゾールと3-メチル-4...
2-ブロモ-5-フロロ-N-(2-フェノールメチル)ベンゼンウレアは安全ですか?
2-ブロモ-5-フロロ-N-(2-フェノールメチル)ベンゼンウレアは、毒性や刺激性の実験データに基づき、適切な取扱いと防護措置を講じることで安全に使用できます。...
対甲苯磺酸酯-四聚乙二醇-四氢吡喃醚の物理化学的性質は何ですか?
対甲苯磺酸酯-四聚乙二醇-四氢吡喃醚のCAS番号は86259-89-4です。この化合物は無色の液体で、分子量は約724.8です。高濃度では溶血性が報告されており...
2-(3-(二氟甲基)-4-氟苯基)-4,4,5,5-四甲基-1,3,2-二噁硼戊環はどのように保存すればよいですか?
2-(3-(二氟甲基)-4-氟苯基)-4,4,5,5-四甲基-1,3,2-二噁硼戊環は、室温で暗い場所に保管し、直射日光から遠ざけ、容器は密閉状態で保存してくだ...
6-アミノ-5-クロロ-2-シクロプロピルピリミジンカルボン酸の代替品はありますか?
この化合物の代替品には、ピロリミジン酸やその類似物、またピロリミジンカルボン酸の他の異性体があります。これらの代替品は、特定の化学反応や目的に応じて選択すること...
5-クロロベンゾ[1,3]二オキセイン-4-アミンに適用される法規ガイドラインは何ですか?
5-クロロベンゾ[1,3]二オキセイン-4-アミンはCAS番号379228-45-2に該当します。この化合物はGHS分類でH314(接触により急性毒性がある)と...
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.













![3,7-Di(1,1':3',1''-terphenyl-5'-yl)-10,11,12,13-tetrahydrodiindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin-5-ol 5-oxide structure 3,7-Di(1,1':3',1''-terphenyl-5'-yl)-10,11,12,13-tetrahydrodiindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin-5-ol 5-oxide structure](https://static.chemtradehub.com/structs/135/1352810-38-8-3f10.webp)
