Výsledky vyhledávání - "S. Brøndsted Nielsen"

Non-scrambling of hydrogen in NH4+(H2O)3 clusters

Autor: Bertil Dynefors, Kristian Støchkel, S. Brøndsted Nielsen, A. E. K. Sundén, Klavs Hansen

Publikováno v: Hansen, K, Sundén, A E K, Støchkel, K, Nielsen, S B & Dynefors, B 2019, ' Non-scrambling of hydrogen in NH 4 + (H 2 O) 3 clusters ', RSC Advances, vol. 9, no. 12, pp. 6620-6626 . https://doi.org/10.1039/c8ra10515d

We have measured the metastable decay of protonated, ammonia-doped, deuterated water clusters produced in an electrospray source, dn-NH4+(H2O)3, n = 0-6. The mass spectra show a very strong odd-even effect, consistent with a low degree of scrambling

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53857b3242eb29badad008a0f6505fca
https://doi.org/10.1039/c8ra10515d

Zobrazit plný text záznamu

Akademický článek

Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.

Non-scrambling of hydrogen in NH

Autor: K, Hansen, A E K, Sundén, K, Støchkel, S Brøndsted, Nielsen, B, Dynefors

Publikováno v: RSC advances. 9(12)

We have measured the metastable decay of protonated, ammonia-doped, deuterated water clusters produced in an electrospray source, d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::604bd2e2a1a8e04a53c9943ca8da7c46
https://pubmed.ncbi.nlm.nih.gov/35518464

Zobrazit plný text záznamu

Nile blue shows its true colors in gas-phase absorption and luminescence ion spectroscopy

Autor: Mark H. Stockett, Jørgen Houmøller, S. Brøndsted Nielsen

Publikováno v: Stockett, M H, Houmoller, J & Nielsen, S B 2016, ' Nile blue shows its true colors in gas-phase absorption and luminescence ion spectroscopy ', Journal of Chemical Physics, vol. 145, no. 10, 104303 . https://doi.org/10.1063/1.4962364

Nile blue is used extensively in biology as a histological stain and fluorescent probe. Its absorption and emission spectra are strongly solvent dependent, with variations larger than 100 nm. The molecule is charged due to an iminium group, and it is

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::296d0f992d7d45b87303801453a4ca6a
https://pure.au.dk/portal/da/publications/nile-blue-shows-its-true-colors-in-gasphase-absorption-and-luminescence-ion-spectroscopy(40d6800f-14a0-4047-b34f-0a01496d4128).html

Zobrazit plný text záznamu

Stabilities of protonated water-ammonia clusters

Autor: S. Brøndsted Nielsen, Preben Hvelplund, Kristian Støchkel, Klavs Hansen, A. E. K. Sundén, Bertil Dynefors

Publikováno v: Sunden, A E K, Stochkel, K, Hvelplund, P, Nielsen, S B, Dynefors, B & Hansen, K 2018, ' Stabilities of protonated water-ammonia clusters ', Journal of Chemical Physics, vol. 148, no. 18, 184306 . https://doi.org/10.1063/1.5023620

Branching ratios of water and ammonia evaporation have been measured for spontaneous evaporation from protonated mixed clusters H+(H2O)n(NH3)m in the size range 0 ≤ n ≤ 11 and 0 ≤ m ≤ 7. Mixed clusters evaporate water except for clusters cont

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82ceddbf7fc80001f48893a998e18832
https://doi.org/10.1063/1.5023620

Zobrazit plný text záznamu

Photodissociation of protonated tryptamine and its supramolecular complex with 18-crown-6 ether: Dissociation times and channels, absorption spectra, and excited states calculations

Autor: Jean Ann Wyer, Umesh Kadhane, Anneli Ehlerding, Henning Zettergren, Bruno Lucas, Maj-Britt Suhr Kirketerp, J. A. Fayeton, S. Brøndsted Nielsen, Christophe Jouvet, M. Pérot, Michel Barat

Publikováno v: Kadhane, U, Pérot, M, Lucas, B, Barat, M, Fayeton, J A, Jouvet, C, Ehlerding, A, Kirketerp, M-B S, Nielsen, S B, Wyer, J & Zettergren, H 2009, ' Photodissociation of protonated tryptamine and its supramolecular complex with 18-crown-6 ether: Dissociation times and channels, absorption spectra, and excited states calculations ', Chemical Physics Letters, vol. 480, no. 1-3, pp. 57-61 . https://doi.org/10.1016/j.cplett.2009.08.064

Photodissociation of the complex between protonated tryptamine, TryH + , and 18-crown-6 ether (CE) was investigated. Absorption maxima of TryH + and TryH + (CE) are at 249 and 273 nm, respectively. Ions decay exponentially on a microsecond timescale,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e13c861e95c23389137288642eda329c
https://doi.org/10.1016/j.cplett.2009.08.064

Zobrazit plný text záznamu

Formation of higher-order fullerene dianions in collisions with Na atoms

Autor: Shigeo Tomita, S. Brøndsted Nielsen, Preben Hvelplund, Bo Liu

Publikováno v: The European Physical Journal D. 43:133-136

We have measured electron capture cross sections in collisions between higher order fullerene anions Cn- (n=76, 78, 82, 84, 86, 90 and 96) and Na atoms. The ions were produced in an electrospray ion source (ESI) and accelerated to an energy of 50 keV

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::27255fed205bb2d2a1776c0a79bba453
https://doi.org/10.1140/epjd/e2007-00072-2

Zobrazit plný text záznamu

Absorption Spectra of Photoactive Yellow Protein Chromophores in Vacuum

Autor: I. B. Nielsen, Michael Kristensen, M. O. A. El Ghazaly, Lars H. Andersen, S. Brøndsted Nielsen, S. Boyé-Péronne

Publikováno v: Nielsen, I B, Boyé-Peronne, S, El Ghazaly, M O A, Kristensen, M B, Nielsen, S B & Andersen, L H 2005, ' Absorption spectra of photoactive yellow protein chromophores in vacuum ', Biophysical Journal, vol. 89, pp. 2597-2604 .

The absorption spectra of two photoactive yellow protein model chromophores have been measured in vacuum using an electrostatic ion storage ring. The absorption spectrum of the isolated chromophore is an important reference for deducing the influence

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::526909e6c2564c220d69eb54974e0f00
https://doi.org/10.1529/biophysj.105.061192

Zobrazit plný text záznamu

Photoresponse of the protonated Schiff-base retinal chromophore in the gas phase

Autor: D. B. Rahbek, Rodolphe Antoine, Y. Toker, S. Brøndsted Nielsen, Lars H. Andersen, Hjalte V. Kiefer, Philippe Dugourd, Jyoti Rajput, Anastasia V. Bochenkova

Publikováno v: Physical Chemistry Chemical Physics
Physical Chemistry Chemical Physics, Royal Society of Chemistry, 2013, 15 (45), pp.19566. ⟨10.1039/C3CP51759D⟩
Toker, J, Rahbek, D B, Kiefer, H V, Rajput, J, Antoine, R, Dugourd, P, Nielsen, S B, Bochenkova, A V & Andersen, L H 2013, ' Photoresponse of the protonated Schiff-base retinal chromophore in the gas phase ', Physical Chemistry Chemical Physics, vol. 15, pp. 19566-19569 . https://doi.org/10.1039/c3cp51759d

The fragmentation, initiated by photoexcitation as well as collisionally-induced excitation, of several retinal chromophores was studied in the gas phase. The chromophore in the protonated Schiff-base form (RPSB), essential for mammalian vision, show

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96069c260f6b446268eb9f5ad9d55a3e
https://hal.archives-ouvertes.fr/hal-02979563

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání