Electron-capture—Induced dissociation of protoporphyrin IX ions

Autor: Bernd A. Huber, Steen Brøndsted Nielsen, Morten Køcks Lykkegaard, Bruno Manil, Virgile Bernigaud, Preben Hvelplund, Maj-Britt Suhr Kirketerp, Bo Liu, Kasper Drenck, Umesh Kadhane, Tristan Jabot

Publikováno v: Journal of The American Society for Mass Spectrometry
Journal of The American Society for Mass Spectrometry, Springer Verlag (Germany), 2008, 19, pp.809-813
Journal of The American Society for Mass Spectrometry, 2008, 19, pp.809-813

Electron-capture induced dissociation of protoporphyrin cations and anions has been studied. The cations captured two electrons in two successive collisions and were converted to the corresponding even-electron anions. About one fifth of the ions los

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d59b9563c15ae6f28a236797de5e711
https://doi.org/10.1016/j.jasms.2008.01.002

Photodissociation of isolated ferric heme and heme-His cations in an electrostatic ion storage ring

Autor: Henning Zettergren, Anneli Ehlerding, Jean Ann Wyer, Morten Køcks Lykkegaard, Umesh Kadhane, Steen Brøndsted Nielsen, Maj-Britt Suhr Kirketerp

Publikováno v: 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, vol. 113, no. 8, pp. 1440-1444 . https://doi.org/10.1021/jp809626v

Photodissociation of isolated Fe(III)-heme(+) and Fe(III)-heme(+)(His) ions in the gas phase has been investigated using an electrostatic storage ring. The experiment provides three pieces of information, namely fragmentation channels, dissociation t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::152b4ca9d93b4ff850342552ba739fb1
https://pubmed.ncbi.nlm.nih.gov/19182963

Upon the intrinsic optical properties of oligo(p-phenyleneethynylene)s (OPEs). Synthesis of OPE3 for experimental gas-phase absorption studies

Autor: Steen Brøndsted Nielsen, Subhasis Panja, Morten Køcks Lykkegaard, Mogens Brøndsted Nielsen, Torben Ryhding, Maj-Britt Suhr Kirketerp, Umesh Kadhane

Publikováno v: Ryhding, T, Kirketerp, M-B S, Kadhane, U, Lykkegaard, M K, Panja, S, Nielsen, S B & Nielsen, M B 2008, ' Upon the intrinsic optical properties of oligo( p-phenyleneethynylene)s (OPEs). Synthesis of OPE3 for experimental gas-phase absorption studies ', Tetrahedron, vol. 64, pp. 11475-11479 .

A new oligo( p -phenyleneethynylene) (OPE3) was synthesized by step-wise Pd-catalyzed cross-coupling reactions. The molecule incorporates an amine functionality, which allows for transfer of the protonated molecule to the gas phase by electrospray io

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::078ee0ac2ee02e6db532a0b20aa0281f
https://pure.au.dk/portal/da/publications/upon-the-intrinsic-optical-properties-of-oligopphenyleneethynylenes-opes-synthesis-of-ope3-for-experimental-gasphase-absorption-studies(08675b10-ac08-11dd-889c-000ea68e967b).html

A Soret Marker Band for Four-Coordinate Ferric Heme Proteins from Absorption Spectra of Isolated Fe(III)-Heme+ and Fe(III)-Heme+(His) Ions in Vacuo

Autor: Morten Køcks Lykkegaard, Jean Ann Wyer, Anneli Ehlerding, Henning Zettergren, Subhasis Panja, Preben Hvelplund, Umesh Kadhane, Steen Brøndsted Nielsen, Maj-Britt Suhr Kirketerp

Publikováno v: Journal of the American Chemical Society. 130:11856-11857

In this work, we report the absorption spectra in the Soret band region of isolated Fe(III)-heme+ and Fe(III)-heme+(His) ions in vacuo from action spectroscopy. Fe(III)-heme+ refers to iron(III) coordinated by the dianion of protoporphyrin IX. We fin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8485bb0e49279054b4133ae0852a92ad
https://doi.org/10.1021/ja803460c