Cross sections for the interaction of electrons with volatile organic molecules

• Grant number: 15/08258-2
• Support Opportunities: Regular Research Grants
• Duration: August 01, 2015 - July 31, 2017
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Manoel Gustavo Petrucelli Homem
• Grantee: Manoel Gustavo Petrucelli Homem
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Associated researchers: Ione Iga

Abstract

This project aims at the experimental study of electron interaction in a wide energy range (1 - 1000 eV) with volatile organic species whose interaction cross sections are little known or absent in the literature. Experimentally, it is intended to obtain the total cross sections, differential elastic, and ionization cross sections (total and partial) as a function of the energy of incident electron. Among the molecular species to be studied are molecules of biological, environmental and astrochemistry interest, for example, trimethyl phosphate, dimethyl sulfide and formaldehyde, respectively. For the implementation of the project, we are building a high-resolution spectrometer for total cross sections measurements. This equipment is based on the electron energy analysis by time-of-flight spectroscopy and represent a major advance in the instruments available in our laboratory. The measurements of elastic and ionization cross sections will be performed with existing spectrometers, where changes will be introduced to increase the impact energy range and improve the quality of results. The work will be performed at the Electron Scattering Laboratory, Department of Chemistry, Federal University of São Carlos. (AU)

Scientific publications

(11)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DA SILVA, L. A.; DA MATA, V. A. S.; DE SOUZA, G. L. C.; IGA, I.; MACHADO, L. E.; LUCCHESE, R. R.; LEE, M. -T.; HOMEM, M. G. P.. Electron interaction with dimethyl disulfide in the low- and intermediate-energy range. Physical Review A, v. 94, n. 5, NOV 23 2016. (15/08258-2)

BUK, M. V.; BARDELA, F. P.; DA SILVA, L. A.; IGA, I.; HOMEM, M. G. P.. Elastic electron scattering from formamide. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, v. 51, n. 9, MAY 14 2018. (15/08258-2)

HLOUSEK, B. A.; MARTIN, M. F.; KHAKOO, M. A.; ZAWADZKI, M.; MOREIRA, G. M.; MAIOLI, L. S.; BETTEGA, M. H. F.; MACHADO, L. E.; DA MATA, V. A. S.; DA SILVA, A. J.; et al. Elastic scattering of electrons from chloroform. Physical Review A, v. 100, n. 5, NOV 26 2019. (15/08258-2)

SOUSA, J. N.; RIBEIRO, L. C.; ARRUDA, MANUELA S.; HOMEM, M. G. P.; TANAKA, H. K.; CREDIDIO, B. C.; MARINHO, R. R. T.; MEDINA, ALINE; PRAZERES, I.; SANTOS, A. C. F.; et al. Photoabsorption and Photoionization Cross Sections of Pyridine in the Vacuum-Ultraviolet Energy Range. Journal of Physical Chemistry A, v. 123, n. 24, p. 5164-5170, JUN 20 2019. (15/08258-2)

FITARONI, LAYS B.; CACURO, THIAGO A.; COSTA, CARLOS A. R.; LANZONI, EVANDRO M.; GALANTE, DOUGLAS; ARAUJO, JOYCE R.; HOMEM, MANOEL G. P.; WALDMAN, WALTER R.; CRUZ, SANDRA A.. Polymeric nanowrinkles: surface modification of polypropylene films in the VUV energy range. Journal of Materials Science, v. 56, n. 15, p. 9532-9543, MAY 2021. (15/08258-2, 16/24936-3, 16/25703-2)

HLOUSEK, B. A.; MARTIN, M. F.; ZAWADZKI, M.; KHAKOO, M. A.; MACHADO, L. E.; LUCCHESE, R. R.; DA MATA, V. A. S.; IGA, I.; LEE, M-T; HOMEM, M. G. P.. Low to intermediate energy elastic electron scattering from dichloromethane (CH2Cl2). JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, v. 52, n. 2, JAN 28 2019. (15/08258-2)

TANAKA, H. K.; PRUDENTE, F. V.; MEDINA, A.; MARINHO, R. R. T.; HOMEM, M. G. P.; MACHADO, L. E.; FUJIMOTO, M. M.. Photoabsorption and photoionization cross sections for formaldehyde in the vacuum-ultraviolet energy range. Journal of Chemical Physics, v. 146, n. 9, MAR 7 2017. (15/08258-2)

WOLFF, W.; RUDEK, B.; DA SILVA, L. A.; HILGERS, G.; MONTENEGRO, E. C.; HOMEM, M. G. P.. Absolute ionization and dissociation cross sections of tetrahydrofuran: Fragmentation-ion production mechanisms. Journal of Chemical Physics, v. 151, n. 6, AUG 14 2019. (15/08258-2)

FUJIMOTO, M. M.; TANAKA, H. K.; MARINHO, R. R. T.; MEDINA, A.; PRUDENTE, V, F.; HOMEM, M. G. P.. Cross Sections and Asymmetry Parameters for Formic Acid in the Vacuum-Ultraviolet Energy Range. Journal of Physical Chemistry A, v. 124, n. 32, p. 6478-6485, AUG 13 2020. (15/08258-2)

DA SILVA, L. A.; FERRAZ, J. R.; HOMEM, M. G. P.; FUJIMOTO, M. M.; IGA, I.; LEE, M-T; MACHADO, L. E.. Elastic and absorption electron collisions with acetaldehyde. EUROPEAN PHYSICAL JOURNAL D, v. 75, n. 10, OCT 2021. (15/08258-2)

BARDELA, F. P.; DA SILVA, A. J.; DA MATA, V. A. S.; HOMEM, M. G. P.; IGA, I.; SUGOHARA, R. T.; FUJIMOTO, M. M.. Elastic electron collisions with trimethyl phosphate. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, v. 54, n. 7, APR 7 2021. (15/08258-2)