Infrared laser dissociation of single megadalton polymer ions in a gated electrostatic ion trap: the added value of statistical analysis of individual events‡
Literature Information
Mohammad A. Halim, Christian Clavier, Xavier Dagany, Michel Kerleroux, Philippe Dugourd, Robert C. Dunbar, Rodolphe Antoine
In this study, we report the unimolecular dissociation mechanism of megadalton SO3-containing poly(2-acrylamido-2-methyl-1-propanesulfonic acid) (PAMPS) polymer cations and anions with the aid of infrared multiphoton dissociation coupled to charge detection ion trap mass spectrometry. A gated electrostatic ion trap (“Benner trap”) is used to store and detect single gaseous polymer ions generated by positive and negative polarity in an electrospray ionization source. The trapped ions are then fragmented due to the sequential absorption of multiple infrared photons produced from a continuous-wave CO2 laser. Several fragmentation pathways having distinct signatures are observed. Highly charged parent ions characteristically adopt a distinctive “stair-case” pattern (assigned to the “fission” process) whereas low charge species take on a “funnel like” shape (assigned to the “evaporation” process). Also, the log–log plot of the dissociation rate constants as a function of laser intensity between PAMPS positive and negative ions is significantly different.
Related Literature
Fine-structure transitions of interstellar atomic sulfur and silicon induced by collisions with helium
J. Kłos, S. D. Le Picard
DOI: 10.1039/C7CP05092E
Time-dependent changes in the growth of ultrathin ionic liquid films on Ag(111)
Matthias Lexow, Timo Talwar, Bettina S. J. Heller, Benjamin May, Radha G. Bhuin, Florian Maier, Hans-Peter Steinrück
DOI: 10.1039/C8CP01411F
Strain-induced modulations of electronic structure and electron–phonon coupling in dense H3S
Chang Liu, Hang Zhai, Ying Sun, Weiguang Gong, Yan Yan, Quan Li, Weitao Zheng
DOI: 10.1039/C8CP00205C
Li deposition and desolvation with electron transfer at a silicon/propylene-carbonate interface: transition-state and free-energy profiles by large-scale first-principles molecular dynamics
Tsukuru Ohwaki, Taisuke Ozaki, Yukihiro Okuno, Hideto Imai, Minoru Otani
DOI: 10.1039/C7CP08569A
Magnetic field effects on coenzyme B12- and B6-dependent lysine 5,6-aminomutase: switching of the J-resonance through a kinetically competent radical-pair intermediate
Jun-Ru Chen, Shyue-Chu Ke
DOI: 10.1039/C8CP01497C
Interaction of H2O with CO: potential energy surface, bound states and scattering calculations
Y. N. Kalugina, A. Faure, A. van der Avoird, K. Walker, F. Lique
DOI: 10.1039/C7CP06275C
Origin of enhancement in Raman scattering from Ag-dressed carbon-nanotube antennas: experiment and modelling
T. V. Raziman, J. A. Duenas, W. I. Milne, O. J. F. Martin, P. Dawson
DOI: 10.1039/C7CP06416K
Thermal activation of methane by vanadium boride cluster cations VBn+ (n = 3–6)
DOI: 10.1039/C8CP00071A
Patterned polyaniline encapsulated in titania nanotubes for electrochromism
Haiming Lv, Yi Wang, Lei Pan, Leipeng Zhang, Hangchuan Zhang, Lei Shang, Huiying Qu, Na Li, Jiupeng Zhao, Yao Li
DOI: 10.1039/C7CP07617G
You might also like
What are the main uses of 1-(3-Aminophenyl)-3-[(3R)-1-(3,3-dimethyl-2-oxobutyl)-2-oxo-5-(2-pyridinyl)-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]urea (CAS: 155412-88-7)?
This compound is mainly used as an intermediate in the synthesis of antipsychoti...
How should waste containing 1-(D-Ribofuranosyl)-1,4-dihydro-3-pyridinecarboxamide (CAS: 19132-12-8) be handled?
Waste containing 1-(D-Ribofuranosyl)-1,4-dihydro-3-pyridinecarboxamide (CAS: 191...
What regulatory guidelines apply to 2-Methyl-2-propanyl 3-bromo-3-(hydroxymethyl)-1-azetidinecarboxylate (CAS: 2007919-81-3)?
2-Methyl-2-propanyl 3-bromo-3-(hydroxymethyl)-1-azetidinecarboxylate (CAS: 20079...
What is N-(4-Chloro-2-pyridinyl)acetamide (CAS: 245056-66-0)?
N-(4-Chloro-2-pyridinyl)acetamide (CAS: 245056-66-0) is a chemical compound with...
What is 5-Chloro-2-hydroxybenzoic acid (CAS: 321-14-2)?
5-Chloro-2-hydroxybenzoic acid, also known as 5-chlorosalicylic acid, is an arom...
What precautions should be taken when handling 1,1-Dichloro-1-fluoroethane (CAS: 1717-00-6)?
When handling 1,1-Dichloro-1-fluoroethane (CAS: 1717-00-6), it is important to u...
What are the physical and chemical properties of Fmoc-(2S,3R)-3-phenylpyrrolidine-2-carboxylic acid (CAS: 281655-32-1)?
Fmoc-(2S,3R)-3-phenylpyrrolidine-2-carboxylic acid is a white crystalline solid ...
What are the main uses of 4-Amino-5-bromo-2-pyridinecarboxylic acid (CAS: 1363381-01-4)?
4-Amino-5-bromo-2-pyridinecarboxylic acid is primarily used as a precursor in th...
What precautions should be taken when handling (S)-tert-butyl 2-((2-(4-bromophenyl)-2-oxoethyl)carbamoyl)pyrrolidine-1-carboxylate (CAS: 1007881-98-2)?
Handling this compound should be done with personal protective equipment (PPE) i...
What precautions should be taken when handling 8-bromo-2,2-dimethyl-3,4-dihydro-2H-1,4-benzoxazin-3-one (CAS: 688363-73-7)?
When handling 8-bromo-2,2-dimethyl-3,4-dihydro-2H-1,4-benzoxazin-3-one, use prop...
Source Journal
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.











![4-Chloro-3-(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridine structure 4-Chloro-3-(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridine structure](https://static.chemtradehub.com/structs/869/869335-75-1-a9d0.webp)


