Nature Search

Experimental evidence for the formation of fullerenes by collisional heating of carbon rings in the gas phase

Gert von Helden
Nigel G. Gotts
Michael T. Bowers
Research06 May 1993
Nature

Volume: 363, P: 60-63
Unravelling the structure of glycosyl cations via cold-ion infrared spectroscopy

Glycosyl cations are key intermediates in glycosylation reactions, but their structure has remained elusive due to their transient nature. Here, the authors perform an in-depth structural analysis and report that C2-participating protective groups induce acetoxonium cations with distinct ring conformations.

Eike Mucha
Mateusz Marianski
Kevin Pagel
ResearchOpen Access09 Oct 2018
Nature Communications

Volume: 9, P: 1-5
Publisher Correction: Unravelling the structure of glycosyl cations via cold-ion infrared spectroscopy

Eike Mucha
Mateusz Marianski
Kevin Pagel
Amendments and CorrectionsOpen Access08 Nov 2018
Nature Communications

Volume: 9, P: 1-2
Infrared spectrum and structure of the homochiral serine octamer–dichloride complex

Octameric complexes of serine are long known for their special properties, such as their enhanced stability and preference for homochirality. Yet, there is no consensus on their structures. Now, experimental data on the serine octamer–dichloride complex is presented that supports a highly symmetrical, highly stable structure.

Jongcheol Seo
Stephan Warnke
Gert von Helden
Research10 Jul 2017
Nature Chemistry

Volume: 9, P: 1263-1268
An infrared spectroscopy approach to follow β-sheet formation in peptide amyloid assemblies

There is increasing evidence that highly dynamic, polydisperse peptide oligomers are the toxic species in amyloid-related diseases such as Alzheimer's and Parkinson's. Now, the secondary structure of individual amyloid oligomers has been analysed directly for the first time using a combination of ion-mobility spectrometry–mass spectrometry and gas-phase infrared spectroscopy.

Jongcheol Seo
Waldemar Hoffmann
Kevin Pagel
Research26 Sept 2016
Nature Chemistry

Volume: 9, P: 39-44
Mechanistic insight into benzylidene-directed glycosylation reactions using cryogenic infrared spectroscopy

The role of cationic intermediates in the benzylidene-directed synthesis of 1,2-cis glycosidic linkages is unclear. Now cryogenic infrared spectroscopy provides insight into the S_N1 mechanism of benzylidene-directed glycosylation reactions. The analysis reveals that cationic intermediates form anhydro cations through a two-step process, which correlates with the observed stereochemical outcome.

Chun-Wei Chang
Kim Greis
Kevin Pagel
ResearchOpen Access26 Jul 2024
Nature Synthesis

Volume: 3, P: 1377-1384
Unravelling the structural complexity of glycolipids with cryogenic infrared spectroscopy

Glycolipids are glycoconjugates with important biological functions, but techniques for their analysis are deficient. Here, the authors report the use of cryogenic gas-phase infrared spectroscopy to investigate isomerism in a set of immunologically relevant glycolipids, and show that their structural features can be accurately resolved based on a narrow spectral fingerprint region.

Carla Kirschbaum
Kim Greis
Kevin Pagel
ResearchOpen Access22 Feb 2021
Nature Communications

Volume: 12, P: 1-7

Search

Filter By:

Experimental evidence for the formation of fullerenes by collisional heating of carbon rings in the gas phase

Unravelling the structure of glycosyl cations via cold-ion infrared spectroscopy

Publisher Correction: Unravelling the structure of glycosyl cations via cold-ion infrared spectroscopy

Infrared spectrum and structure of the homochiral serine octamer–dichloride complex

An infrared spectroscopy approach to follow β-sheet formation in peptide amyloid assemblies

Mechanistic insight into benzylidene-directed glycosylation reactions using cryogenic infrared spectroscopy

Unravelling the structural complexity of glycolipids with cryogenic infrared spectroscopy

Search

Quick links