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Related Experiment Video

Updated: Jul 19, 2026

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level

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Published on: September 26, 2016

Microsolvation of formamide: a rotational study.

Susana Blanco¹, Juan C López, Alberto Lesarri

¹Grupo de Espectroscopía Molecular, Departamento de Química Física y Química Inorganica, Facultad de Ciencias, Universidad de Valladolid, 47005 Valladolid, Spain.

Journal of the American Chemical Society

|September 14, 2006

Summary

Researchers studied microsolvated formamide clusters using microwave spectroscopy. They identified multiple conformers of monohydrated and dihydrated formamide, revealing insights into hydrogen bonding and sigma-bond cooperativity in these systems.

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Area of Science:

Physical Chemistry
Molecular Spectroscopy
Supramolecular Chemistry

Background:

Formamide is a fundamental molecule with implications in biological systems.
Understanding microsolvated clusters provides insights into solvent effects and intermolecular interactions.
Previous studies have explored formamide-water interactions, but detailed structural characterization of multiple conformers is limited.

Purpose of the Study:

To characterize the structures of microsolvated formamide clusters (formamide-water and formamide-water-water).
To investigate the role of hydrogen bonding in stabilizing different conformers.
To explore the effects of hydration on formamide's electronic structure and bonding.

Main Methods:

Generation of microsolvated formamide clusters in a supersonic jet expansion.
Characterization using Fourier transform microwave spectroscopy.
Determination of substitution (r(s)) and effective (r(0)) structures for observed clusters.

Main Results:

Observed three conformers of monohydrated formamide and one of dihydrated formamide.
Identified specific hydrogen bonding patterns, including closed ring structures and cyclic arrangements.
Determined detailed structural parameters for the most stable conformers.
Provided evidence for sigma-bond cooperativity effects upon hydration.

Conclusions:

The study elucidates the structural diversity of formamide-water clusters.
Observed hydrogen bonding networks offer insights into water preferences in proteins.
Results highlight the significance of sigma-bond cooperativity in microsolvated systems.
No significant pi-bond cooperativity effects were detected upon formamide hydration.