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Sökning: onr:"swepub:oai:DiVA.org:kth-26366" > Dissociative recomb...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00005470naa a2200757 4500
001oai:DiVA.org:kth-26366
003SwePub
008101124s2004 | |||||||||||000 ||eng|
009oai:research.chalmers.se:0f025fe8-62c8-4f3b-8acd-b2ca5d93a049
009oai:gup.ub.gu.se/53725
024a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-263662 URI
024a https://doi.org/10.1063/1.16693882 DOI
024a https://research.chalmers.se/publication/537252 URI
024a https://gup.ub.gu.se/publication/537252 URI
040 a (SwePub)kthd (SwePub)cthd (SwePub)gu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
100a Öjekull, Jenny,d 1973u Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry4 aut0 (Swepub:gu)xojeje
2451 0a Dissociative recombination of NH4+ and ND4+ ions :b Storage ring experiments and ab initio molecular dynamics
264 1b AIP Publishing,c 2004
338 a print2 rdacarrier
500 a QC 20101124
520 a The dissociative recombination (DR) process of NH4+ and ND4+ molecular ions with free electrons has been studied at the heavy-ion storage ring CRYRING (Manne Siegbahn Laboratory, Stockholm University). The absolute cross sections for DR of NH4+ and ND4+ in the collision energy range 0.001-1 eV are reported, and thermal rate coefficients for the temperature interval from 10 to 2000 K are calculated from the experimental data. The absolute cross section for NH4+ agrees well with earlier work and is about a factor of 2 larger than the cross section for ND4+. The dissociative recombination of NH4+ is dominated by the product channels NH3+H (0.85+/-0.04) and NH2+2H (0.13+/-0.01), while the DR of ND4+ mainly results in ND3+D (0.94+/-0.03). Ab initio direct dynamics simulations, based on the assumption that the dissociation dynamics is governed by the neutral ground-state potential energy surface, suggest that the primary product formed in the DR process is NH3+H. The ejection of the H atom is direct and leaves the NH3 molecule highly vibrationally excited. A fraction of the excited ammonia molecules may subsequently undergo secondary fragmentation forming NH2+H. It is concluded that the model results are consistent with gross features of the experimental results, including the sensitivity of the branching ratio for the three-body channel NH2+2H to isotopic exchange.
650 7a NATURVETENSKAPx Fysik0 (SwePub)1032 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciences0 (SwePub)1032 hsv//eng
650 7a NATURVETENSKAPx Kemix Fysikalisk kemi0 (SwePub)104022 hsv//swe
650 7a NATURAL SCIENCESx Chemical Sciencesx Physical Chemistry0 (SwePub)104022 hsv//eng
653 a Ammonia
653 a Computer simulation
653 a Dissociation
653 a Energy transfer
653 a Ion exchange
653 a Ionization
653 a Isotopes
653 a Mathematical models
653 a Molecular vibrations
653 a Positive ions
653 a Potential energy
653 a Probability
653 a Storage rings
653 a Thermal effects
653 a Physics
653 a Fysik
700a Andersson, Patrik U,d 1970u Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry4 aut0 (Swepub:gu)xandpa
700a Någård, M. B.u Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry4 aut
700a Pettersson, Jan B. C.,d 1962u Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry4 aut0 (Swepub:gu)xpettj
700a Derkatch, Aliku Alba Nova Universitetscentrum,AlbaNova University Center. Stockholm Center for Physics, Astronomy and Biotechnology4 aut0 (Swepub:kth)u14h2kw1
700a Neau, A.u Alba Nova Universitetscentrum,AlbaNova University Center. Stockholm Center for Physics, Astronomy and Biotechnology4 aut
700a Rosén, S.u Alba Nova Universitetscentrum,AlbaNova University Center. Stockholm Center for Physics, Astronomy and Biotechnology4 aut
700a Thomas, R.u Alba Nova Universitetscentrum,AlbaNova University Center. Stockholm Center for Physics, Astronomy and Biotechnology4 aut
700a Larsson, M.u Alba Nova Universitetscentrum,AlbaNova University Center. Stockholm Center for Physics, Astronomy and Biotechnology4 aut
700a Österdahl, Fabianu KTH,Fysik,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)4 aut0 (Swepub:kth)u1er6waw
700a Semaniak, J.u Akademia Swietokrzyska im. Jana Kochanowskiego w Kielcach4 aut
700a Danared, Håkan4 aut0 (Swepub:kth)u1jryotr
700a Källberg, A.4 aut
700a af Ugglas, M.4 aut
700a Markovic, Nikola,d 1961u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)nikola
710a Göteborgs universitetb Institutionen för kemi4 org
773t Journal of Chemical Physicsd : AIP Publishingg 120:16, s. 7391-7399q 120:16<7391-7399x 0021-9606x 1089-7690
856u http://dx.doi.org/10.1063/1.1669388y FULLTEXT
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-26366
8564 8u https://doi.org/10.1063/1.1669388
8564 8u https://research.chalmers.se/publication/53725
8564 8u https://gup.ub.gu.se/publication/53725

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