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Hydrogen Bonds00:26

Hydrogen Bonds

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Hydrogen bonds are weak attractions between atoms that have formed other chemical bonds. One of these atoms is electronegative, like oxygen, and has a partial negative charge. The other is a hydrogen atom that has bonded with another electronegative atom and has a partial positive charge.
Hydrogen Bonds Control the World!
Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared....
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Hydrogen Bonds01:04

Hydrogen Bonds

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A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...
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Classifying Matter by Composition03:35

Classifying Matter by Composition

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Matter: Pure Substances and Mixtures
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures. 
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IR Spectrum Peak Broadening: Hydrogen Bonding01:23

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The vibrational frequency of a bond is directly proportional to its bond strength. As a result, stronger bonds vibrate at higher frequencies, while weaker bonds vibrate at lower frequencies. The stretching vibration of the strong O–H bond in alcohols and phenols (very dilute solution or gas phase) appears as a sharp peak at 3600–3650 cm−1.
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Updated: Feb 8, 2026

Use of High-Throughput Automated Microbioreactor System for Production of Model IgG1 in CHO Cells
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Correction: Model molecules to classify CHO hydrogen-bonds.

Amol M Vibhute1, U Deva Priyakumar, Arthi Ravi

  • 1School of Chemistry, Indian Institute of Science Education and Research (IISER), Thiruvananthapuram, Kerala-695551, India. kms@iisertvm.ac.in.

Chemical Communications (Cambridge, England)
|July 6, 2018
PubMed
Summary
This summary is machine-generated.

This correction clarifies a previous study on model molecules for classifying carbonyl (C=O) hydrogen bonds. It ensures accurate data interpretation for future research in molecular interactions.

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Area of Science:

  • Chemistry
  • Molecular Biology
  • Biophysics

Background:

  • Hydrogen bonds are crucial in molecular recognition and biological processes.
  • Classifying carbonyl (C=O) hydrogen bonds accurately is essential for understanding molecular interactions.
  • Previous work aimed to establish model molecules for this classification.

Purpose of the Study:

  • To correct and clarify specific details within the original publication.
  • To ensure the integrity and accuracy of the reported findings.
  • To provide a corrected reference for future studies on carbonyl hydrogen bonds.

Main Methods:

  • The correction involves re-evaluating data and analysis presented in the original study.
  • Specific figures and interpretations were reviewed for accuracy.
  • The correction addresses potential ambiguities in the classification of hydrogen bonds.

Main Results:

  • The correction ensures that the classification of carbonyl hydrogen bonds is presented accurately.
  • It rectifies any discrepancies in the model molecule data.
  • The revised information maintains the study's contribution to understanding hydrogen bonding.

Conclusions:

  • Accurate classification of carbonyl hydrogen bonds is vital for molecular science.
  • This correction enhances the reliability of the original study's findings.
  • The revised information supports advancements in computational chemistry and drug design.