Guanine Tautomerism in Ionic Complexes with Ag+ Investigated by IRMPD Spectroscopy and Mass Spectrometry

2021 ◽  
Author(s):  
Andrés F. Cruz-Ortiz ◽  
Franco L. Molina ◽  
Philippe Maitre ◽  
Gustavo A. Pino
Keyword(s):  
Mass Spectrometry ◽  
Irmpd Spectroscopy ◽  
Ionic Complexes

Study of formation and fragmentation of ionic complexes of polydentate ligands with Al(III) and glycerol by fast atom bombardment mass spectrometry. Part 1: Polydentate ligands

1996 ◽  
Vol 74 (11) ◽  
pp. 2221-2228
Author(s):  
Mandapati Saraswathi ◽  
Jack M. Miller
Keyword(s):  
Mass Spectrometry ◽  
Fast Atom Bombardment ◽  
Polyethylene Glycols ◽  
Metal Chelation ◽  
Ionic Complexes ◽  
Polydentate Ligands ◽  
Fragment Ions ◽  
Fab Mass Spectrometry ◽  
Aluminum Ions ◽  
Complexation Reactions

The complexation reactions of aluminum ions with polydentate ligands such as 12-crown-4,15-crown-5,18-crown-6, 1,10-dithia-18-crown-6, dicyclohexyl-18-crown-6, dibenzo-18-crown-6, and dibenzo-24-crown-8 and acyclic analogs mono-, di-, tri-, tetra-, penta-, and hexaethylene glycols were studied using FAB mass spectrometry. These cyclic ligands form (M + 117)+, (M + 157)+, (M + 231)+, and (M + 253)+ ions with different aluminum-containing species. Collisionally activated dissociations of these adduct ions gave fragment ions, initially due to the loss of ligands directly attached to aluminum, followed by insertion of aluminum into the remaining ligand skeleton. Further fragmentation of the metal-containing species gave ions corresponding to consecutive losses of C2H4O units. Fragmentations of deuterium-labelled ions were used to help in establishing fragmentation pathways. Selectivity towards metal chelation is observed in this order: 12-crown-4 < 15-crown-5 < 18-crown-6. The elemental compositions of adduct ions were confirmed by high-resolution measurements. The formation of (M + Al − 2H)+ ion, obtained by the displacement of two hydroxy protons, is more favored for tetra- and pentaethylene glycols. Key words: crown ethers, polyethylene glycols, aluminum(III)–glycerol, ionic complexes and ion dissociations.

Chiral differentiation of d- and l-isoleucine using permethylated β-cyclodextrin: infrared multiple photon dissociation spectroscopy, ion-mobility mass spectrometry, and DFT calculations

2018 ◽  
Vol 20 (48) ◽  
pp. 30428-30436 ◽  
Author(s):  
Sung-Sik Lee ◽  
Jae-ung Lee ◽  
Ju Hyeon Oh ◽  
Soojin Park ◽  
Yin Hong ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Dft Calculations ◽  
Ion Mobility ◽  
Ion Mobility Mass Spectrometry ◽  
Irmpd Spectroscopy ◽  
Infrared Multiple Photon Dissociation ◽  
Covalent Complex

d-/l-Isoleucine chirality could be differentiated using IRMPD spectroscopy, ion-mobility mass spectrometry, and DFT calculations for the permethylated β-cyclodextrin non-covalent complex.

scholarly journals Insights into Cisplatin Binding to Uracil and Thiouracils from IRMPD Spectroscopy and Tandem Mass Spectrometry

2020 ◽  
Vol 31 (4) ◽  
pp. 946-960 ◽  
Author(s):  
Davide Corinti ◽  
Maria Elisa Crestoni ◽  
Barbara Chiavarino ◽  
Simonetta Fornarini ◽  
Debora Scuderi ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Tandem Mass Spectrometry ◽  
Tandem Mass ◽  
Irmpd Spectroscopy

Characterization by mass spectrometry and IRMPD spectroscopy of the sulfoxide group in oxidized methionine and related compounds

2011 ◽  
Vol 502 (1-3) ◽  
pp. 29-36 ◽  
Author(s):  
Marta Ignasiak ◽  
Debora Scuderi ◽  
Pedro de Oliveira ◽  
Tomasz Pedzinski ◽  
Yamina Rayah ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Irmpd Spectroscopy ◽  
Related Compounds ◽  
Sulfoxide Group

Cisplatin and transplatin interaction with methionine: bonding motifs assayed by vibrational spectroscopy in the isolated ionic complexes

2017 ◽  
Vol 19 (39) ◽  
pp. 26697-26707 ◽  
Author(s):  
Roberto Paciotti ◽  
Davide Corinti ◽  
Alberto De Petris ◽  
Alessandra Ciavardini ◽  
Susanna Piccirillo ◽  
...  
Keyword(s):  
Vibrational Spectroscopy ◽  
Irmpd Spectroscopy ◽  
Ionic Complexes

IRMPD spectroscopy discloses N- versus S-platination.

scholarly journals Structure of Pb2+/dCMP and Pb2+/CMP complexes as characterized by tandem mass spectrometry and IRMPD spectroscopy

2011 ◽  
Vol 304 (2-3) ◽  
pp. 154-164 ◽  
Author(s):  
Jean-Yves Salpin ◽  
Létitia Gamiette ◽  
Jeanine Tortajada ◽  
Thierry Besson ◽  
Philippe Maître
Keyword(s):  
Mass Spectrometry ◽  
Tandem Mass Spectrometry ◽  
Tandem Mass ◽  
Irmpd Spectroscopy

Structure of [M + H − H2O]+from Protonated Tetraglycine Revealed by Tandem Mass Spectrometry and IRMPD Spectroscopy

2010 ◽  
Vol 114 (15) ◽  
pp. 5076-5082 ◽  
Author(s):  
Benjamin J. Bythell ◽  
Ryan P. Dain ◽  
Stephanie S. Curtice ◽  
Jos Oomens ◽  
Jeffrey D. Steill ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Tandem Mass Spectrometry ◽  
Tandem Mass ◽  
Irmpd Spectroscopy
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