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Updated: Jul 1, 2025
09:11
Raman and IR Spectroelectrochemical Methods as Tools to Analyze Conjugated Organic Compounds
Published on: October 12, 2018
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Comprehensive Analysis of Methyl-β-D-ribofuranoside: A Multifaceted Spectroscopic and Theoretical Approach
Matei Pascariu1,2, Leonardo Bernasconi3, Matthew Krzystyniak1
1ISIS Neutron and Muon Source, Rutherford Appleton Laboratory, STFC, Harwell Campus, Chilton, Oxfordshire OX11 0QX, U.K.
The Journal of Physical Chemistry. A
|March 12, 2024
Summary
This study analyzes methyl-β-D-ribofuranoside
Area of Science:
- Molecular Spectroscopy
- Computational Chemistry
- Solid-State Physics
Background:
- Methyl-β-D-ribofuranoside is a key carbohydrate derivative.
- Understanding its vibrational properties is crucial for molecular characterization.
Purpose of the Study:
- To comprehensively analyze the vibrational spectra of methyl-β-D-ribofuranoside.
- To assign specific vibrational features using experimental and computational methods.
- To elucidate the molecular structures and interactions in the solid state.
Main Methods:
- Inelastic neutron scattering (INS)
- Raman spectroscopy
- Infrared (IR) spectroscopy
- Density Functional Theory (DFT) calculations (Gaussian, CRYSTAL, CASTEP)
Main Results:
- Observed all vibrational modes irrespective of selection rules.
- Identified two distinct molecular structures in the unit cell, differing in O-H bond orientation.
- Assigned spectral regions to lattice vibrations, functional group rotations, ring bending, C-H bending, and C-H/O-H stretching.
- Provided evidence for hydrogen bonding interactions between the two structures.
Conclusions:
- The combined spectroscopic and computational approach successfully characterized the vibrational landscape of methyl-β-D-ribofuranoside.
- The study reveals structural polymorphism and intermolecular hydrogen bonding in the solid state.
- Detailed spectral assignments provide a foundation for future studies on related glycosides.
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