dc.contributor |
Háskóli Íslands |
dc.contributor |
University of Iceland |
dc.contributor.author |
T P, Ragesh Kumar |
dc.contributor.author |
Bjornsson, Ragnar |
dc.contributor.author |
Barth, Sven |
dc.contributor.author |
Ingólfsson, Oddur |
dc.date.accessioned |
2018-01-10T12:51:02Z |
dc.date.available |
2018-01-10T12:51:02Z |
dc.date.issued |
2017 |
dc.identifier.citation |
T P, R. K., Bjornsson, R., Barth, S., & Ingolfsson, O. (2017). Formation and decay of negative ion states up to 11[space]eV above the ionization energy of the nanofabrication precursor HFeCo3(CO)12. Chemical Science, 8(9), 5949-5952. doi:10.1039/C7SC01927K |
dc.identifier.issn |
2041-6520 |
dc.identifier.issn |
2041-6539 (eISSN) |
dc.identifier.uri |
https://hdl.handle.net/20.500.11815/519 |
dc.description.abstract |
In single electron collisions with the heteronuclear metal carbonyl compound HFeCo3(CO)12 we observe the formation of long-lived negative ion states up to about 20 eV, 11 eV above its ionization energy. These transient negative ions (TNIs) relax through dissociation (dissociative electron attachment, DEA), losing up to all 12 CO ligands, demonstrating their resilience towards reemission of the captured electron – even at such very high energies. This is unique in DEA and we hypothesize that this phenomenon is rooted in the orbital structure enabling a scaffold of multi-particle, electronically excited resonances. We support this with calculated MO-diagrams revealing dense bands of energy levels near the HOMO–LUMO gap. HFeCo3(CO)12 is a promising focused electron beam induced deposition (FEBID) precursor and we argue that its unusual DEA behavior relates to its exceptional performance in FEBID. This may be general to a class of molecules with high potential for nano-fabrication by FEBID. |
dc.description.sponsorship |
This work was supported by the Icelandic Center of Research
(RANNIS) Grant No. 13049305(1-3) and the University of Iceland
Research Fund. RKTP acknowledges a doctoral grant from the
University of Iceland Research Fund and nancial support from
the COST Action CM1301; CELINA, for short term scientic
missions (STSMs). R. B. acknowledges support from the
Icelandic Research Fund, Grant No. 141218051. |
dc.format.extent |
5949-5952 |
dc.language.iso |
en |
dc.publisher |
Royal Society of Chemistry (RSC) |
dc.relation.ispartofseries |
Chemical Science;8(9) |
dc.rights |
info:eu-repo/semantics/openAccess |
dc.subject |
FEBID |
dc.subject |
DEA |
dc.subject |
Efnafræði |
dc.subject |
Efnasambönd |
dc.title |
Formation and decay of negative ion states up to 11 eV above the ionization energy of the nanofabrication precursor HFeCo3(CO)12 |
dc.type |
info:eu-repo/semantics/article |
dcterms.license |
This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence |
dc.description.version |
Peer Reviewed |
dc.identifier.journal |
Chemical Science |
dc.identifier.doi |
10.1039/C7SC01927K |
dc.relation.url |
http://pubs.rsc.org/en/content/articlepdf/2017/SC/C7SC01927K |
dc.contributor.department |
Raunvísindastofnun (HÍ) |
dc.contributor.department |
Science Institute (UI) |
dc.contributor.school |
Verkfræði- og náttúruvísindasvið (HÍ) |
dc.contributor.school |
School of Engineering and Natural Sciences (UI) |