Article
Chemistry, Multidisciplinary
Jun-Jie Wu, Ming-Peng Zhuo, Runchen Lai, Sheng-Nan Zou, Chang-Cun Yan, Yi Yuan, Sheng-Yi Yang, Guo-Qing Wei, Xue-Dong Wang, Liang-Sheng Liao
Summary: The study proposed and demonstrated the cascaded occurrence of excited-state intramolecular proton transfer to construct a new energy-level system, achieving efficient population inversion for NIR single-mode lasing.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Optics
Chang-Cun Yan, Zong -Lu Che, Wan-Ying Yang, Xue-Dong Wang, Liang-Sheng Liao
Summary: A new molecular design strategy was proposed to develop near-infrared (NIR) organic gain materials by merging two excited-state intramolecular proton transfer-active molecules. Three new materials were successfully synthesized and showed low threshold laser emissions in PS microspheres. These NIR organic lasers also demonstrated high laser stability, which is significant for practical applications.
OPTO-ELECTRONIC ADVANCES
(2023)
Review
Biochemistry & Molecular Biology
Hem C. Joshi, Liudmil Antonov
Summary: Excited-state intramolecular proton transfer (ESIPT) has become an attractive research field with various aspects such as excitation wavelength dependence, anti-Kasha ESIPT, fast and slow ESIPT, reversibility and irreversibility, hydrogen bonding, and geometrical factors. Studies also involve excited-state double proton transfer (ESDPT) mechanisms including concerted and stepwise processes.
Article
Chemistry, Applied
Jie Ma, Jinlong Li, Rui Yang, Weijian Xue, Qingxia Wang, Shenmiao Li
Summary: The study revealed that N-1 to N-5 exhibit significantly red-shifted UV-vis absorption and emission properties, with N-1 demonstrating dual emission, confirming their ESIPT characteristics. All compounds generated triplet excited states, with N-3 and N-4 showing longer triplet excited state lifetimes and higher photooxidative abilities than the other compounds.
Article
Chemistry, Applied
Catia I. C. Esteves, Luis F. B. Fontes, A. Filipa N. Borges, Joao Rocha, Artur M. S. Silva, Samuel Guieu
Summary: It is discovered that 2'-aminochalcones with a strong push-pull character exhibit dual emission due to the Excited State Intramolecular Proton Transfer (ESIPT) between ketoenamine and enol-imine tautomers. The strength of hydrogen bonds is correlated with the tautomerization energy gap, depending on the electron donating or electron withdrawing group on the amine.
Article
Chemistry, Multidisciplinary
Zong-Lu Che, Chang-Cun Yan, Xue-Dong Wang, Liang-Sheng Liao
Summary: This review systematically summarizes the core structures of organic near-infrared luminescent materials based on the excited state intramolecular proton transfer (ESIPT) process, and reviews the recent advances in ESIPT-based organic near-infrared fluorescent probes and lasers. The current challenges and prospects of ESIPT-based organic NIR luminescent materials are also introduced.
CHINESE JOURNAL OF CHEMISTRY
(2022)
Article
Optics
Guijie Zhao, Wei Shi, Xin Xin, Fengcai Ma, Yongqing Li
Summary: This study reveals for the first time the proton transfer pathways and changes in the photophysical properties of P-TNS with three intramolecular hydrogen bonds. The reaction mechanism and driving force for the proton transfer process are explained through analysis of potential energy surface, frontier molecular orbitals, and hydrogen bond parameters, among others.
JOURNAL OF LUMINESCENCE
(2024)
Article
Chemistry, Physical
Chattarika Sukpattanacharoen, Nawee Kungwan
Summary: The theoretical investigation on the effect of polar solvents on 2-aryl-3-hydroxyquinolone (3HQ) revealed different emission peaks related to different conformations, with intramolecular PT processes possible for Intra-HB conformers and intermolecular double PT processes possible for Inter-HB conformers. The mechanisms of excited-state intermolecular double PT processes for 3HQ(CH3OH)-inter and 3HQ(H2O)-inter conformers were judged to be stepwise based on the time lag between the first and second proton transfers.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Nanoscience & Nanotechnology
Shao-Zhe Yi, Bao-Ning Li, Peng-Yan Fu, Mei Pan, Cheng-Yong Su
Summary: A new method for synthesizing pure organic photoluminescent molecules with dual excited-state intramolecular proton transfer (ESIPT) sites was developed. These molecules can emit full-color light from blue, green, and yellow to red, and even white light, depending on the solvents used. The study verified the dual-ESIPT mechanism through experiments on copper ions' selective photoluminescent response and solid-state photoluminescent changes upon the stimulus of organic vapor. Theoretical analysis further supported the experimental results and provided insights for the design and application of advanced dual-ESIPT optical materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Xin Cheng, Huan Hu, Yu Wu, Zhimin Ma, Zhiyong Ma
Summary: We have designed a novel ESIPT mechanophore (HBIA-2OH) through a three-step synthesis. When connected to polyurethane, it exhibits unique photo-gated mechanochromism, achieved through photo-induced formation and force-induced breaking of intramolecular hydrogen bonds during excited-state intramolecular proton transfer (ESIPT). As a control, HBIA@PU shows no response to photo/force. Therefore, HBIA-2OH is a rare mechanophore with photo-gated mechanochromism.
CHEMICAL COMMUNICATIONS
(2023)
Article
Biochemistry & Molecular Biology
Anita Adamoczky, Tibor Nagy, Peter Pal Feher, Veronika Pardi-Toth, Akos Kuki, Lajos Nagy, Miklos Zsuga, Sandor Keki
Summary: This study reports the synthesis and characterization of a novel fluorescent probe ICOL that exhibits solvatochromic and excited-state proton-transfer properties. The probe shows dual emission spectra in solvents of higher polarities and can be used to determine critical micelle concentration and map microenvironments of biomacromolecules.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Spectroscopy
Guijie Zhao, Wei Shi, Xin Xin, Yunfan Yang, Fengcai Ma, Yongqing Li
Summary: This study theoretically analyzed the influence of different alkyl chain lengths on excited state intramolecular proton transfer (ESIPT) using phenothiazine derivatives as models. The results showed an inverse relationship between alkyl chain length and the shift value of the fluorescence spectrum. Density functional theory (DFT) and time-dependent density functional theory (TD-DFT) were used to simulate the molecular dynamics in the ground state and excited state. The analysis revealed stronger hydrogen bonding in the excited state molecules, favoring the ESIPT process. Frontier molecular orbitals (FMOs) indicated that electron density rearrangement was the driving force of the ESIPT process. Scanning potential energy curves qualitatively analyzed the data and concluded that longer alkyl chains weakened the hydrogen bonding effect and made the ESIPT process more unfavorable.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Physical
Yunxia Han, Yanyan Jia, Ziwei Chen, Peipei Jin, Menghui Jia, Haifeng Pan, Zhenrong Sun, Jinquan Chen
Summary: This study investigates the excited state dynamics of luteolin and quercetin, two natural flavonoids with low fluorescence quantum yields, using femtosecond transient absorption spectroscopy and quantum chemical calculations. The ultrafast ESIPT process in these non-emissive flavonoids is experimentally demonstrated, and it is proposed that the rotation between B-and C-ring after ESIPT is the key to their ultrafast non-radiation decay channels, suggesting their potential as natural sunscreens.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Keigo Takahashi, Kohei Sambe, Yotaro Kasahara, Takashi Takeda, Norihisa Hoshino, Ken-ichi Sakai, Tomoyuki Akutagawa
Summary: This study introduces a pyridyl unit to modify the excited-state intramolecular proton transfer (ESIPT) of 2-(2-hydroxyphenyl)benzothiazole fluorescent molecule, and investigates the formation and properties of different structures in various solutions.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Arui Huang, Jie Hu, Mengmeng Han, Kangwei Wang, Jian Long Xia, Jiajia Song, Xuelian Fu, Kai Chang, Xiaocong Deng, Siwei Liu, Qianqian Li, Zhen Li
Summary: This study demonstrated multiple photodeformable processes in anil-poly(ethylene terephthalate) systems utilizing excited-state intramolecular proton transfer and trans-cis isomerization as microscopic molecular motions under light stimulus. The doping films were able to achieve light-driven contraction and bending angle during a simple stretching process. The internal mechanism and relationship between molecular structure and photocontrolled motion were investigated through transient absorption spectra, theoretical calculations, and crystal analysis.
ADVANCED MATERIALS
(2021)
Article
Optics
Daniel Feldkhun, Omer Tzang, Kelvin H. Wagner, Rafael Piestun
Article
Chemistry, Analytical
Vadim Krivitsky, Boris Filanovsky, Vladimir Naddaka, Fernando Patolsky
ANALYTICAL CHEMISTRY
(2019)
Article
Chemistry, Multidisciplinary
Nimrod Harpak, Guy Davidi, Dan Schneier, Svetlana Menkin, Edna Mados, Diana Golodnitsky, Emanuel Peled, Fernando Patolsky
Article
Chemistry, Multidisciplinary
Vadim Krivitsky, Marina Zverzhinetsky, Adva Krivitsky, Lo-Chang Hsiung, Vladimir Naddaka, Itay Gabriel, Sharon Lefler, Jennifer Conroy, Larisa Burstein, Fernando Patolsky
Article
Chemistry, Multidisciplinary
Ella Borberg, Marina Zverzhinetsky, Adva Krivitsky, Alon Kosloff, Omri Heifler, Gal Degabli, Hagit Peretz Soroka, Ronit Satchi Fainaro, Larisao Burstein, Shlomi Reuveni, Haim Diamant, Vadim Krivitsky, Fernando Patolsky
Article
Chemistry, Analytical
Vadim Krivitsky, Boris Filanovsky, Tatiana Bourenko, Eran Granot, Anna Praiz, Fernando Patolsky
ANALYTICAL CHEMISTRY
(2019)
Article
Materials Science, Multidisciplinary
Esther Lestrell, Fernando Patolsky, Nicolas H. Voelcker, Roey Elnathan
Article
Chemistry, Multidisciplinary
Vadim Krivitsky, Marina Zverzhinetsky, Fernando Patolsky
Article
Chemistry, Multidisciplinary
Nimrod Harpak, Guy Davidi, Yarden Melamed, Adam Cohen, Fernando Patolsky
Article
Biotechnology & Applied Microbiology
Ella Yeor-Davidi, Marina Zverzhinetsky, Vadim Krivitsky, Fernando Patolsky
JOURNAL OF NANOBIOTECHNOLOGY
(2020)
Article
Chemistry, Analytical
Reut Meir, Marina Zverzhinetsky, Nimrod Harpak, Ella Borberg, Larisa Burstein, Offer Zeiri, Vadim Krivitsky, Fernando Patolsky
ANALYTICAL CHEMISTRY
(2020)
Article
Chemistry, Physical
Nimrod Harpak, Guy Davidi, Adam Cohen, Adva Raz, Fernando Patolsky
Article
Biophysics
Marina Zverzhinetsky, Vadim Krivitsky, Fernando Patolsky
BIOSENSORS & BIOELECTRONICS
(2020)
Article
Electrochemistry
Dan Schneier, Nimrod Harpak, Svetlana Menkin, Guy Davidi, Meital Goor, Edna Mados, Gilat Ardel, Fernando Patolsky, Diana Golodnitsky, Emanuel Peled
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Article
Chemistry, Organic
Dana Kaizerman-Kane, Maya Hadar, Eran Granot, Fernando Patolsky, Yossi Zafrani, Yoram Cohen
ORGANIC CHEMISTRY FRONTIERS
(2019)