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Updated: Apr 19, 2026

Spatial Separation of Molecular Conformers and Clusters
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Electronic delocalization in small water rings.

Bo Wang1, Minsi Xin, Xing Dai

  • 1Institute of Atomic and Molecular Physics, Jilin University, Changchun, 130012, China. wangzg@jlu.edu.cn.

Physical Chemistry Chemical Physics : PCCP
|December 9, 2014
PubMed
Summary
This summary is machine-generated.

Small water clusters, like (H2O)3 and (H2O)4, exhibit significant electron delocalization. This delocalization, originating from atomic orbitals, enhances the unique bonding characteristics of these water clusters.

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Area of Science:

  • Physical Chemistry
  • Computational Chemistry
  • Quantum Mechanics

Background:

  • Water clusters are fundamental molecular assemblies.
  • Hydrogen bonding is the traditionally accepted mechanism for water cluster formation.
  • The electronic properties of small water clusters require further investigation.

Purpose of the Study:

  • To investigate the electronic structure of small water clusters, specifically (H2O)n where n=3 or 4.
  • To determine the role of electron delocalization in the formation and bonding of these clusters.
  • To explore the origin and extent of electron delocalization within water clusters.

Main Methods:

  • Utilized first-principles calculations to model water cluster formation.
  • Analyzed electron delocalization patterns using quantum chemical methods.
  • Examined contributions from hydrogen (H) and oxygen (O) atomic orbitals.

Main Results:

  • Demonstrated significant electron delocalization in small water clusters ((H2O)3 and (H2O)4).
  • Identified the origin of electron delocalization from both H and O atomic orbitals.
  • Observed electron delocalization extending to the cluster's ring center.

Conclusions:

  • Electron delocalization is a key factor in the formation of small water clusters.
  • This delocalization significantly enriches the bonding characteristics beyond simple hydrogen bonding.
  • The findings provide new insights into the fundamental nature of water cluster interactions.