NDLI: Photofragmentation spectroscopy of cold protonated aromatic amines in the gas phase

Please wait, while we are loading the content...

Photofragmentation spectroscopy of cold protonated aromatic amines in the gas phase

Content Provider	Hyper Articles en Ligne (HAL)
Author	Féraud, Géraldine Broquier, Michel Dedonder, Claude Grégoire, Gilles Soorquia, Satchin Jouvet, Christophe
Abstract	The electronic spectroscopy of cold protonated aromatic amines, anilineH+ C6H5-NH3+, benzylamineH+ C6H5-CH2-NH3+ and phenethylamineH+ C6H5-(CH2)2-NH3+ has been investigated experimentally in a large spectral domain and is compared to that of their hydroxy- homologues (OH containing). In the low energy region, the electronic spectra are similar to their neutral analogues, which reveals that their first excited state is of * character. A second transition is observed from 0.5 to 1 eV above the origin band, which is assigned to the excitation of the * state. In these protonated amine molecules, there is a competition between different fragmentation channels, some of them being specific of the UV excitation and are not observed in low-energy collision induced dissociation experiment. Besides, a drastic change in the fragmentation branching ratio can be observed within a very short energy range that reveals the complex excited state dynamics and fragmentation processes in these species. The experimental observations can be rationalized with a simple qualitative model, the /* model(PCCP-2002), which predicts that the excited state dynamics is controlled by the crossing between the * excited state and a  state repulsive along the XH (X being O or N) coordinate.
Related Links	https://hal.science/hal-00920405/file/Photofragmentation_spectroscopy_of_cold_protonated_aromatic_amines_in_the_gas_phase.pdf
ISSN	14639076
e-ISSN	14639084
DOI	10.1039/C3CP54736A
Journal	Physical Chemistry Chemical Physics
Language	English
Publisher	HAL CCSD Royal Society of Chemistry
Publisher Date	2014-02-03
Access Restriction	Open
Subject Keyword	protonated molecule ion spectroscopy
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Physical and Theoretical Chemistry

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in