Investigation of electron induced chemical control using momentum imaging of negative ions from dissociative electron attachment

Objective

This proposal aims at investigating chemical control using electrons by studying the dynamics of the dissociative electron attachment in gas phase molecules of practical interest using ion momentum imaging. These experiments will be complemented by measurements on molecules condensed on surfaces using electron beam irradiation as well as scanning tunneling microscopes. The proposal is motivated by the recent observations by several groups on molecules in gas and condensed phases that dissociative attachment allows control of electron induced processes. In particular, the group led by the applicant showed that functional group dependence exists in dissociative attachment allowing site/bond selective fragmentation of organic molecules using electron energy as a control parameter. They further investigated the dynamics of this process in selected small molecules using a novel technique developed by them for ion momentum imaging in low energy electron collisions. This technique allows characterization of the intermediate resonant state, the fragmentation pattern and the energy partitioning in the product channels. It is proposed to set up a similar experiment for ion momentum imaging arising from dissociative attachment and polar dissociation in molecules relevant to nanolithography, astrochemsitry and radiation biology at the host institution. These experiments will be complemented by experiments on molecules condensed on surfaces by electron beam irradiation and by using scanning tunneling microscopes with a view to correlate the energy partitioning in the dissociative attachment process and the reactivity of the products. While the applicant brings in expertise on gas phase measurements like absolute partial cross section measurement and ion momentum imaging, the host group and his collaborators provide necessary expertise and facilities for complementary experiments in condensed phase and on surfaces.

Fields of science (EuroSciVoc)

CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.

• natural sciences physical sciences optics microscopy scanning tunneling microscopy

Keywords

Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)

• Chemistry
• Physical chemistry
• Physical sciences
• Reaction mechanisms ands dynamics

Programme(s)

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• FP7-PEOPLE - Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)

Topic(s)

Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.

• PEOPLE-2007-4-2.IIF - Marie Curie Action: "International Incoming Fellowships"

Call for proposal

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FP7-PEOPLE-2007-4-2-IIF
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Funding Scheme

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MC-IIF - International Incoming Fellowships (IIF)

Coordinator