The effect of N-methylation on the conformational landscape of alanine: the case of N-methyl-l-alanine

2018 ◽  
Vol 20 (46) ◽  
pp. 29159-29165 ◽  
Author(s):  
E. M. Neeman ◽  
I. León ◽  
E. R. Alonso ◽  
L. Kolesniková ◽  
S. Mata ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Amino Acid ◽  
Laser Ablation ◽  
High Resolution ◽  
Gas Phase ◽  
Molecular Beam ◽  
Supersonic Expansion ◽  
Proteinogenic Amino Acid ◽  
Chirped Pulse ◽  
Conformational Landscape

The non-proteinogenic amino acid N-methyl-l-alanine has been brought into the gas phase using laser ablation techniques and studied by high resolution chirped pulse and molecular-beam Fourier transform microwave spectrometers coupled to supersonic expansion.

The role of amino acid side chains in stabilizing dipeptides: the laser ablation Fourier transform microwave spectrum of Ac-Val-NH2

2017 ◽  
Vol 19 (36) ◽  
pp. 24985-24990 ◽  
Author(s):  
I. León ◽  
E. R. Alonso ◽  
S. Mata ◽  
C. Cabezas ◽  
M. A. Rodríguez ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Amino Acid ◽  
Laser Ablation ◽  
Molecular Beam ◽  
Microwave Spectrum ◽  
Steric Effects ◽  
Side Chains ◽  
Isopropyl Group ◽  
Amino Acid Side Chains

The steric effects imposed by the isopropyl group of valine in the conformational stabilization of the capped dipeptide N-acetyl-l-valinamide (Ac-Val-NH2) have been studied by laser ablation molecular beam Fourier transform microwave (LA-MB-FTMW) spectroscopy.

Notizen: A Pulsed Molecular Beam Microwave Fourier Transform Spectrometer with Parallel Molecular Beam and Resonator Axes

1990 ◽  
Vol 45 (8) ◽  
pp. 1043-1044 ◽  
Author(s):  
J.-U Grabow ◽  
W. Stahl
Keyword(s):  
Fourier Transform ◽  
High Resolution ◽  
Molecular Beam ◽  
Fourier Transform Spectrometer

AbstractWe report on first experiences with a pulsed molecular beam microwave Fourier transform spectrometer with parallel molecular beam and resonator axes. This setup shows up a high resolution and sensitivity.

scholarly journals Generation and structural characterization of Ge carbides GeCn (n = 4, 5, 6) by laser ablation, broadband rotational spectroscopy, and quantum chemistry

2019 ◽  
Vol 21 (35) ◽  
pp. 18911-18919
Author(s):  
Kin Long Kelvin Lee ◽  
Sven Thorwirth ◽  
Marie-Aline Martin-Drumel ◽  
Michael C. McCarthy
Keyword(s):  
Fourier Transform ◽  
Laser Ablation ◽  
Structural Characterization ◽  
Quantum Chemical ◽  
Microwave Spectroscopy ◽  
Rotational Spectroscopy ◽  
Chirped Pulse ◽  
Rotational Spectra ◽  
High Level

Rotational spectra of three Ge carbides, linear GeC4, GeC5, and GeC6 have been observed using chirped pulse and cavity Fourier transform microwave spectroscopy via laser ablation, guided by new high-level quantum chemical calculations.

REACTIONS OF MONOVALENT METAL IONS (M+) WITH MIXED MOLECULAR CLUSTERS (NH3)m(H2O)n AS STUDIED BY LASER-ABLATION MOLECULAR BEAM (LAMB) METHOD: PREFERRED OR NONSPECIFIC COORDINATION

1996 ◽  
Vol 03 (01) ◽  
pp. 671-674 ◽  
Author(s):  
H. SATO ◽  
A. MATSUZAKI ◽  
S. NISHIO ◽  
Y. HORIKI ◽  
O. ITO
Keyword(s):  
Laser Ablation ◽  
Metal Ions ◽  
Gas Phase ◽  
Molecular Beam ◽  
Magic Number ◽  
Molecular Clusters ◽  
The Other ◽  
Monovalent Metal ◽  
Binary Clusters ◽  
Beam Method

Three distinct types of competitive solvation around monopositive metal ions in the gas phase have been revealed by the laser-ablation molecular beam method using binary clusters in the molecular beam: (i) preferred solvation of one of the two components, (ii) essentially nonselective solvation, and (iii) magic-number-like behavior of one component in the presence of the other component in the outer solvation sphere.

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