Valence Anions in Complexes of Adenine and 9-Methyladenine with Formic Acid:  Stabilization by Intermolecular Proton Transfer

2007 ◽  
Vol 129 (5) ◽  
pp. 1216-1224 ◽  
Author(s):  
Kamil Mazurkiewicz ◽  
Maciej Harańczyk ◽  
Maciej Gutowski ◽  
Janusz Rak ◽  
Dunja Radisic ◽  
...  
Keyword(s):  
Proton Transfer ◽  
Formic Acid ◽  
Intermolecular Proton Transfer

Anion of the formic acid dimer as a model for intermolecular proton transfer induced by a π* excess electron

2005 ◽  
Vol 122 (20) ◽  
pp. 204304 ◽  
Author(s):  
Rafał A. Bachorz ◽  
Maciej Harańczyk ◽  
Iwona Dąbkowska ◽  
Janusz Rak ◽  
Maciej Gutowski
Keyword(s):  
Proton Transfer ◽  
Formic Acid ◽  
Excess Electron ◽  
Intermolecular Proton Transfer

Intermolecular proton transfer induced by excess electron attachment to adenine(formic acid)n (n=2, 3) hydrogen-bonded complexes

2007 ◽  
Vol 342 (1-3) ◽  
pp. 215-222 ◽  
Author(s):  
Kamil Mazurkiewicz ◽  
Maciej Haranczyk ◽  
Piotr Storoniak ◽  
Maciej Gutowski ◽  
Janusz Rak ◽  
...  
Keyword(s):  
Proton Transfer ◽  
Formic Acid ◽  
Electron Attachment ◽  
Excess Electron ◽  
Intermolecular Proton Transfer ◽  
Bonded Complexes ◽  
Hydrogen Bonded

scholarly journals Barrier to Proton Transfer in the Dimer of Formic Acid: A Pure Rotational Study

2018 ◽  
Author(s):  
Weixing Li ◽  
Luca Evangelisti ◽  
Qian Gou ◽  
Walther Caminati ◽  
Rolf Meyer
Keyword(s):  
Proton Transfer ◽  
Formic Acid

scholarly journals A Solvent-Mediated Excited-State Intermolecular Proton Transfer Fluorescent Probe for Fe3+ Sensing and Cell Imaging

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 516
Author(s):  
You Qian ◽  
Fuchun Gong ◽  
Jiguang Li ◽  
Pan Ma ◽  
Hanming Zhu ◽  
...  
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Fluorescent Probe ◽  
Cell Imaging ◽  
Cyano Group ◽  
Proton Donor ◽  
Cell Permeability ◽  
One Pot ◽  
Intermolecular Proton Transfer ◽  
Synthesis Strategy

Constructing excited-state intermolecular proton transfer (ESIPT-e) fluorophores represents significant challenges due to the harsh requirement of bearing a proton donor-acceptor (D-A) system and their matching proton donating-accepting ability in the same molecule. Herein, we synthesized a new-type ESIPT-e fluorophor (2-APC) using the “four-component one-pot” reaction. By the installing of a cyano-group on pyridine scaffold, the proton donating ability of -NH2 was greatly enhanced, enabling 2-APC to undergo ESIPT-e process. Surprisingly, 2-APC exhibited dual-emissions in protic solvents ethanol and normal fluorescence in aprotic solvents, which is vastly different from that of conventional ESIPT-a dyes. The ESIPT emission can be obviously suppressed by Fe3+ due to the coordination reaction of Fe3+ with the A-D system in 2-APC. From this basis, a highly sensitive and selective method was established using 2-APC as a fluorescent probe, which offers the sensitive detection of Fe3+ ranging from 0 to 13 μM with the detection limit of 7.5 nM. The recovery study of spiked Fe3+ measured by the probe showed satisfactory results (97.2103.4%) with the reasonable RSD ranging from 3.1 to 3.8%. Moreover, 2-APC can also exhibit aggregation-induced effect in poor solvent or solid-state, eliciting strong red fluorescence. 2-APC was also applied to cell-imaging, exhibiting good cell-permeability, biocompatibility and color rendering. This multi-mode emission of 2-APC is significant departure from that of conventional extended p-conjugated systems and ESIPT dyes based on a flat and rigid molecular design. The “one-pot synthesis” strategy for the construction of ESIPT molecules pioneered a new route to achieve tricolor-emissive fluorophores.

Proton Transfer Reactions between Methanol and Formic Acid Deposited on Free ArN Nanoparticles

2019 ◽  
Vol 123 (33) ◽  
pp. 7201-7209 ◽  
Author(s):  
Andriy Pysanenko ◽  
Francisco Gámez ◽  
Karolína Fárníková ◽  
Eva Pluhařová ◽  
Michal Fárník
Keyword(s):  
Proton Transfer ◽  
Formic Acid ◽  
Transfer Reactions ◽  
Proton Transfer Reactions

Unexpected concerted two-proton transfer for amination of formic acid to formamide catalysed by Mn bipyridinol complexes

2018 ◽  
Vol 8 (22) ◽  
pp. 5735-5739 ◽  
Author(s):  
Xiuli Yan ◽  
Hongyu Ge ◽  
Xinzheng Yang
Keyword(s):  
Proton Transfer ◽  
Dft Calculations ◽  
Formic Acid ◽  
Transfer Mechanism

DFT calculations reveal a concerted two-proton transfer mechanism for the activation of diethylamine and formic acid, as well as the formation of formamide and water catalysed by Mn bipyridinol complexes.

Mechanochromism of Piroxicam Accompanied by Intermolecular Proton Transfer Probed by Spectroscopic Methods and Solid-Phase Changes

2005 ◽  
Vol 127 (18) ◽  
pp. 6641-6651 ◽  
Author(s):  
Agam R. Sheth ◽  
Joseph W. Lubach ◽  
Eric J. Munson ◽  
Francis X. Muller ◽  
David J. W. Grant
Keyword(s):  
Proton Transfer ◽  
Solid Phase ◽  
Phase Changes ◽  
Spectroscopic Methods ◽  
Intermolecular Proton Transfer
Sign in / Sign up

Export Citation Format

Share Document