Lykkegaard, M. K., Zettergren, H., Kirketerp, M.-B. S., Ehlerding, A., Wyer, J., Kadhane, U. & Nielsen, S. B. (2009).
Photodissociation of Isolated Ferric Heme and Heme-His Cations in an Electrostatic Ion Storage Ring.
Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory,
113(8), 1440-1444.
https://doi.org/10.1021/jp809626v
Lucas, B., Barat, M., Fayeton, J., Perot, M., Jouvet, C., Grégoire, G.
& Nielsen, S. B. (2008).
Mechanisms of photoinduced Cα—Cβ bond breakage in protonated aromatic amino acids.
Journal of Chemical Physics,
128(164302).
Liu, B., Tomita, S., Rangama, J.
, Hvelplund, P. & Nielsen, S. B. (2003).
Electron attachment to "naked" and microsolvated nucleotide anions: Detection of long-lived dianions.
ChemPhysChem,
4, 1341.
Liu, B.
, Nielsen, S. B., Hvelplund, P., Zettergren, H., Cederquist, H., Manil, B. & Huber, B. A. (2006).
Collision-induced dissociation of hydrated adenosine monophosphate nucleotide ions: Protection of the ion in water nanoclusters.
Physical Review Letters,
97, 133401-1-4.
Liu, B., Haag, N., Johansson, H., Schmidt, H. T., Cederquist, H.
, Nielsen, S. B., Zettergren, H., Hvelplund, P., Manil, B. & Huber, B. A. (2008).
Electron capture induced dissociation of nucleotide anions in water nanodroplets.
Journal of Chemical Physics,
128(075102).
Langeland, J., Christensen, N. F., Vogt, E.
, Kjær, C., Lindkvist, T. T., Nielsen, S. B. & Kjaergaard, H. G. (2023).
Cryogenic Absorption and Emission Spectroscopy of the Oxyluciferin Anion In Vacuo.
Journal of Physical Chemistry Letters,
14(25), 5949-5954.
https://doi.org/10.1021/acs.jpclett.3c01206
Kjær, C., Jones, N. C., Stockett, M. H.
, Hoffmann, S. V. & Nielsen, S. B. (2020).
Circular dichroism, anisotropy and absorption spectroscopy of Chlorophyll b in methanol and mixed methanol-water solutions.
Physical Chemistry Chemical Physics,
22(46), 26961-26966.
https://doi.org/10.1039/D0CP03284K
Kjær, C., Lissau, H., Gravesen Salinas, N. K., Østergaard Madsen, A., Stockett, M. H., Storm, F. E.
, Holm Hansen, T., Andersen, J. U., Laursen, B. W., Mikkelsen, K. V., Brøndsted Nielsen, M.
& Brøndsted Nielsen, S. (2019).
Luminescence Spectroscopy of Rhodamine Homodimer Dications in Vacuo Reveals Strong Dye-Dye Interactions.
ChemPhysChem,
20(4), 533-537.
https://doi.org/10.1002/cphc.201800933
Kjær, C., Hansson, R. F., Hedberg, C., Jensen, F., Jensen, H. H. & Nielsen, S. B. (2020).
Gas-phase action and fluorescence spectroscopy of mass-selected fluorescein monoanions and two derivatives.
Physical Chemistry Chemical Physics,
22(17), 9210-9215.
https://doi.org/10.1039/d0cp00453g
Kjær, C., Zhao, Y., Stockett, M. H., Chen, L., Hansen, K.
& Nielsen, S. B. (2020).
Gas-phase Förster resonance energy transfer in mass-selected ions with methylene or peptide linkers between two dyes: a concerted dance of charges.
Physical Chemistry Chemical Physics,
22(19), 11095-11100.
https://doi.org/10.1039/d0cp01287d
Kjær, C., Bull, J. N., Carrascosa, E.
, Nielsen, S. B. & Bieske, E. J. (2021).
Action spectroscopy of isomer-selected luciferin anions.
European Physical Journal D,
75(3), Artikel 72.
https://doi.org/10.1140/epjd/s10053-021-00076-w
Kjær, C., Langeland, J., Lindkvist, T. T., Sørensen, E. R., Stockett, M. H., Kjaergaard, H. G.
& Nielsen, S. B. (2021).
A new setup for low-temperature gas-phase ion fluorescence spectroscopy.
Review of Scientific Instruments,
92(3), Artikel 033105.
https://doi.org/10.1063/5.0038880
Kjær, C., Vu-Phung, A.
, Toft Lindkvist, T., Langeland, J. & Brøndsted Nielsen, S. (2023).
Cryogenic Ion Fluorescence Spectroscopy: FRET in Rhodamine Homodimers and Heterodimers.
Chemistry - A European Journal,
29(60), Artikel e202302166.
https://doi.org/10.1002/chem.202302166
Kjær, C., Vogt, E.
, Langeland, J., Christensen, N. F.
, Lindkvist, T. T., Kjaergaard, H. G.
& Nielsen, S. B. (2023).
Cryogenic fluorescence spectroscopy of oxazine ions isolated in vacuo.
Physical Chemistry Chemical Physics,
25(47), 32715-32722.
https://doi.org/10.1039/d3cp04615j
Kirketerp, M.-B. S., Petersen, M. Å., Wanko, M., Leal, L. A. E.
, Zettergren, H., Raymo, F., Rubio, A., Nielsen, M. B.
& Nielsen, S. B. (2009).
Absorption Spectra of 4-Nitrophenolate Ions Measured in Vacuo and in Solution.
ChemPhysChem,
10(8), 1207-1209.
https://doi.org/10.1002/cphc.200900174
Kirketerp, M.-B. S., Petersen, M. Å., Wanko, M., Zettergren, H., Rubio, A., Nielsen, M. B.
& Nielsen, S. B. (2010).
Double-Bond versus Triple-Bond Bridges: Does it Matter for the Charge-Transfer Absorption by Donor-Acceptor Chromophores? ChemPhysChem,
11(12), 2495-2498.
https://doi.org/10.1002/cphc.201000464
Kirketerp, M.-B. S., Nielsen, S. B., Støchkel, K., Wyer, J., Hansen, C. N. & Kristensen, M. B. (2011).
On the stability of isolated Pt(SCN)2-4 dianions in vacuo and action spectroscopy experiments.
Chemical Physics Letters,
502(1-3), 53-56.
https://doi.org/10.1016/j.cplett.2010.12.025
Kirketerp, M.-B. S., Ryhding, T.
, Støchkel, K., Brøndsted Nielsen, M.
& Nielsen, S. B. (2011).
Role of Nearby Charges on the Electronic Structure of π-Conjugated Molecules: Symmetric versus Asymmetric Charge Distributions in Oligo(p-phenyleneethynylene).
Journal of Physical Chemistry,
A(115), 1222-1227.
https://doi.org/10.1021/jp111134t
Kirketerp, M.-B. S., Espinosa Leal, L. A., Varsano, D., Rubio, A., Jørgensen, T. J. D., Kilså, K., Brøndsted Nielsen, M.
& Nielsen, S. B. (2011).
On the intrinsic optical absorptions by tetrathiafulvalene radical cations and isomers.
Chemical Communications, 6900-6902.
https://doi.org/10.1039/c1cc11936b
Kelly, O., Calvert, C. R., Greenwood, J. B., Zettergren, H.
, Nielsen, S. B. & Wyer, J. A. (2012).
Effects of Charge Location on the Absorptions and Lifetimes of Protonated Tyrosine Peptides in Vacuo.
Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory,
116(7), 1701-1709.
https://doi.org/10.1021/jp208578w
Kadhane, U., Andersen, J. U., Ehlerding, A., Hvelplund, P., Kirketerp, M.-B. S., Lykkegaard, M. K., Nielsen, S. B., Panja, S., Wyer, J. & Zettergren, H. (2008).
Photodissociation of protonated tryptophan and alteration of dissociation pathways by complexation with crown ether.
Journal of Chemical Physics,
129(18), 184304.
Kadhane, U., Andersen, J. U., Bonderup, E., Concina, B. J. M. F., Hvelplund, P., Kirketerp, M.-B. S., Liu, B., Nielsen, S. B., Panja, S., Rangama, J.
, Støchkel, K., Tomita, S.
, Zettergren, H., Hansen, K., Sundén, A. E. K., Canton, S. E., Echt, O. & Forster, J. S. (2009).
Near-infrared photoabsorption by C60 dianions in a storage ring.
Journal of Chemical Physics,
131(014301).
https://doi.org/10.1063/1.3149775
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,
480(1-3), 57-61.
https://doi.org/10.1016/j.cplett.2009.08.064
Jørgensen, P., Forster, J. S.
, Hvelplund, P., Nielsen, S. B. & Tomita, S. (2001).
Probing hydren bond network formation in anion-water clusters through high energy collision experiments.
Journal of Chemical Physics,
115, 5101.
Johansson, H.
, Zettergren, H., Holm, A., Schmidt, H. T., Haag, N., Cederquist, H.
, Nielsen, S. B., Wyer, J. A., Kirketerp, M.-BS., Støchkel, K. & Hvelplund, P. (2011).
Unimolecular dissociation of anthracene and acridine cations: The importance of isomerization barriers for the C H loss and HCN loss channels.
Journal of Chemical Physics,
135(8).
https://doi.org/10.1063/1.3626792
Jensen, C. S.
, Wyer, J. A., Houmøller, J., Hvelplund, P. & Nielsen, S. B. (2011).
Electron-capture induced dissociation of doubly charged dipeptides: on the neutral losses and N-Cα bond cleavages.
Physical Chemistry Chemical Physics,
13(41), 18373-8.
https://doi.org/10.1039/c1cp21549c
Jensen, M. W., Støchkel, K., Kjær, C., Knudsen, J. L., Maltsev, O. V., Hintermann, L., Naumov, P., Milne, B. F.
& Nielsen, S. B. (2014).
Photoinduced dissociation mass spectroscopy of firefly oxyluciferin anions.
International Journal of Mass Spectrometry,
365-366, 3-9.
https://doi.org/10.1016/j.ijms.2013.11.012
Hvelplund, P., Nielsen, S. B., Sørensen, M.
, Andersen, J. U. & Jørgensen, T. J. D. (2001).
Electron loss from multiply protonated lysozyme ions in high energy collisions with molecular oxygen.
J. Am. Soc. Mass Spectrom.,
12, 889.
Hvelplund, P., Nielsen, S. B., Panja, S., Poully, J.-C.
, Støchkel, K. & Liu, B. (2007).
Electron capture induced dissociation of peptide ions: Identification of neutral fragments from secondary collisions with cesium vapor.
International Journal of Mass Spectrometry,
263, 66-70.
Hvelplund, P., Lui, B.
, Nielsen, S. B. & Tomita, S. (2007).
Formation of higher-order fullerene dianions in collisions with Na atoms.
The European Physical Journal D: Atomic, Molecular, Optical and Plasma Physics,
43, 133-136.
Hvelplund, P., Nielsen, S. B., Panja, S., Pepke Pedersen, J. O. & Uggerud, E. (2009).
On the existence of the hypervalent H30, H2D0, HD20, and D30 radicals.
International Journal of Mass Spectrometry,
281(1-2), 52-54.
https://doi.org/10.1016/j.ijms.2008.12.004