Zobrazeno 1 - 10
of 24 181
pro vyhledávání: '"Fragmentation (mass spectrometry)"'
Publikováno v:
CCS Chemistry. 4:2620-2629
Medium-sized nitrogen heterocycles including 8-membered lactams are important in the synthetic and pharmaceutical chemistry fields because of their presence in a variety of natural products and dru...
Publikováno v:
Organic Chemistry Frontiers. 9:173-182
The peculiar isomer-selective reduction of (α)-hydroxyiminophosphonates (oxime isomers) into (α)-hydroxyaminophosphonate (hydroxylamine) derivatives is presented. A library of 16 (α)-hydroxyiminophosphonates is prepared and studied via a unique mu
Publikováno v:
Inorganic Materials. 57:1447-1455
Synthesis of dimethylmethylphenylsiloxane rubbers with terminal hydroxyl groups by copolymerization of cyclosiloxanes can be accompanied by formation of low molecular weight compounds, impurities, which are difficultly removed (due to target product
Publikováno v:
Journal of the American Society for Mass Spectrometry, 33(1). SPRINGER
Mycobacterium tuberculosis (Mtb) cells are known to synthesize very long chain (C60-90) structurally complex mycolic acids with various functional groups. In this study, we applied linear ion-trap (LIT) multiple-stage mass spectrometry (MSn), combine
Autor:
Huong Dau, Zhe Zhou, Eva Harth, Keaton Richard J, Alex J. Kosanovich, Anthony P. Gies, Sukrit Mukhopadhyay, Dain B. Beezer, Evelyn Auyeung, Ilia Kobylianskii
Publikováno v:
Macromolecules. 54:10814-10829
A combination of ultrahigh resolution mass spectrometry (MS), MS/MS fragmentation, nuclear magnetic resonance spectroscopy (NMR), and computational chemistry was used to probe the reaction mechanis...
Autor:
Alexandre A. Shvartsburg, Berwyck L. J. Poad, Stephen J. Blanksby, Francis Berthias, Hayden A. Thurman, Andrew P. Bowman
Publikováno v:
Journal of the American Society for Mass Spectrometry. 32:2827-2836
The preponderance and functional importance of isomeric biomolecules have become topical in biochemistry. Therefore, one must distinguish and identify all such forms across compound classes, over a wide dynamic range as minor species often have criti
Publikováno v:
The Journal of Physical Chemistry Letters. 12:10920-10926
We present the photoinduced size/structure transformation of [Au37-xAgx(PPh3)13Cl10]3+ (M37) into [Au25-yAgy(PPh3)10Cl8]+ (M25) cluster. Single-crystal X-ray diffraction revealed that M37 has a tri-icosahedron M36 metal core assembled via the fusion
Autor:
Tyler R. Lambeth, Ryan R. Julian
Publikováno v:
Journal of the American Society for Mass Spectrometry. 33:1338-1345
Radical-directed dissociation (RDD) is a powerful technique for structural characterization of peptides in mass spectrometry experiments. Prior to analysis, a radical precursor must typically be appended to facilitate generation of a free radical. To
Publikováno v:
Angewandte Chemie. 133:25750-25754
Polymeric carbon nitride (PCN) as a class of two-electron oxygen reduction reaction (2 e- ORR) photocatalyst has attracted much attention for H2 O2 production. However, the low activity and inferior selectivity of 2 e- ORR greatly restrict the H2 O2
Autor:
Lorenzo Avaldi, Paola Bolognesi, Jacopo Chiarinelli, Mauro Satta, Antonella Cartoni, Daniele Catone, Anna Rita Casavola, Stefano Borocci, Mattea Carmen Castrovilli
Publikováno v:
ChemPhysChem
22 (2021): 2387–2391. doi:10.1002/cphc.202100629
info:cnr-pdr/source/autori:Satta, Mauro; Casavola, Anna Rita; Cartoni, Antonella; Castrovilli, Mattea Carmen; Catone, Daniele; Chiarinelli, Jacopo; Borocci, Stefano; Avaldi, Lorenzo; Bolognesi, Paola/titolo:Ionization of 2-and 4(5)-Nitroimidazoles Radiosensitizers: a "Kinetic Competition" Between NO2 and NO Losses/doi:10.1002%2Fcphc.202100629/rivista:ChemPhysChem (Print)/anno:2021/pagina_da:2387/pagina_a:2391/intervallo_pagine:2387–2391/volume:22
22 (2021): 2387–2391. doi:10.1002/cphc.202100629
info:cnr-pdr/source/autori:Satta, Mauro; Casavola, Anna Rita; Cartoni, Antonella; Castrovilli, Mattea Carmen; Catone, Daniele; Chiarinelli, Jacopo; Borocci, Stefano; Avaldi, Lorenzo; Bolognesi, Paola/titolo:Ionization of 2-and 4(5)-Nitroimidazoles Radiosensitizers: a "Kinetic Competition" Between NO2 and NO Losses/doi:10.1002%2Fcphc.202100629/rivista:ChemPhysChem (Print)/anno:2021/pagina_da:2387/pagina_a:2391/intervallo_pagine:2387–2391/volume:22
Nitroimidazoles are a class of chemicals with a remarkable broad spectrum of applications from the production of explosives to the use as radiosensitizers in radiotherapy. The understanding of thedynamics of their fragmentation induced by ionizing so