Photodissociation of Acetaldehyde and Methyl Formate at 308 / 248 nm : Roaming vs. Transition State Mechanism Detected by Time-resolved Fourier Transform Infrared Spectroscopy

Autor: Hou-Kuan Li, 李厚寬

102
Since roaming mechanism have been reported in photolysis of formaldehyde at 2004, the papers on this topic have been published mushroomed, such as acetaldehyde (CH3CHO), propionaldehyde (C2H5CHO), methyl formate (HCOOCH3 ) etc. were found to

Externí odkaz: http://ndltd.ncl.edu.tw/handle/64743529375057894688

Rovibrationally Excited Molecules on the Verge of a Triple Breakdown: Molecular and Roaming Mechanisms in the Photodecomposition of Methyl Formate

Autor: Po-Yu Tsai, Federico Palazzetti, Toshio Kasai, Hou-Kuan Li, King-Chuen Lin, Vincenzo Aquilanti, Andrea Lombardi

Publikováno v: The journal of physical chemistry. A 120 (2016): 5155–5162. doi:10.1021/acs.jpca.6b00723
info:cnr-pdr/source/autori:Lombardi A.; Palazzetti F.; Aquilanti V.; Li H.-K.; Tsai P.-Y.; Kasai T.; Lin K.-C./titolo:Rovibrationally Excited Molecules on the Verge of a Triple Breakdown: Molecular and Roaming Mechanisms in the Photodecomposition of Methyl Formate/doi:10.1021%2Facs.jpca.6b00723/rivista:The journal of physical chemistry. A/anno:2016/pagina_da:5155/pagina_a:5162/intervallo_pagine:5155–5162/volume:120

For the photodissociation of the simplest of esters, methyl formate HCOOCH3, the energy threshold for triple fragmentation into H, CH3O, and CO was measured by previous ion-imaging experiments at a sequence of wavelengths. The translational energy fe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4237b493670aef7a59fa08e307bdb6b4
https://doi.org/10.1021/acs.jpca.6b00723

Roaming as the dominant mechanism for molecular products in the photodissociation of large aliphatic aldehydes

Autor: Toshio Kasai, Hou-Kuan Li, Po-Yu Tsai, King-Chuen Lin

Publikováno v: Physical Chemistry Chemical Physics. 17:23112-23120

Photodissociation of isobutyraldehyde (C3H7CHO) at 248 nm is investigated using time-resolved Fourier-transform infrared emission spectroscopy to demonstrate the growing importance of the roaming pathway with increasing molecular size of aliphatic al

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a15d0b47016723437caeadb089b2700
https://doi.org/10.1039/c5cp03408f

Photodissociation of Propionaldehyde at 248 nm: Roaming Pathway as an Increasingly Important Role in Large Aliphatic Aldehydes

Autor: Po-Yu Tsai, Kai-Chan Hung, King-Chuen Lin, Hou-Kuan Li

Publikováno v: The Journal of Physical Chemistry Letters. 5:190-195

Time-resolved Fourier transform infrared emission spectroscopy is employed in the photolysis of propionaldehyde (CH3CH2CHO) at 248 nm to characterize the role of the roaming pathway. High-resolution spectra of CO are analyzed to yield a single Boltzm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2215b50af733f6a5ed2d9c6f15bfa66
https://doi.org/10.1021/jz402329g

Communication: photodissociation of CH3CHO at 308 nm: observation of H-roaming, CH3-roaming, and transition state pathways together along the ground state surface

Autor: Toshio Kasai, Po-Yu Tsai, Kai-Chan Hung, Hou-Kuan Li, King-Chuen Lin

Publikováno v: The Journal of chemical physics. 142(4)

Following photodissociation of acetaldehyde (CH3CHO) at 308 nm, the CO(v = 1–4) fragment is acquired using time-resolved Fourier-transform infrared emission spectroscopy. The CO(v = 1) rotational distribution shows a bimodal feature; the low- and h

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0a06d0dc9a27a33885474d29c4b1a74
https://pubmed.ncbi.nlm.nih.gov/25637960