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Related Experiment Video

Updated: Jun 1, 2026

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates

Published on: February 15, 2016

Symmetry-switching molecular Fe(O2)n(+) clusters.

Giannis Mpourmpakis¹, Michalis Velegrakis, Claudia Mihesan

¹Institute of Electronic Structure and Laser, FORTH, Heraklion 71110, Crete, Greece.

The Journal of Physical Chemistry. A

|May 28, 2011

Summary

This summary is machine-generated.

Iron oxide clusters (FeO(n)(+)) with even numbers of oxygen atoms exhibit enhanced stability, particularly FeO(10)(+). This cluster displays unique magnetic properties with both low-spin and high-spin states.

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Spatial Separation of Molecular Conformers and Clusters

Spatial Separation of Molecular Conformers and Clusters

Published on: January 9, 2014

Area of Science:

Physical Chemistry
Materials Science
Computational Chemistry

Background:

Understanding the properties of transition metal oxide clusters is crucial for catalysis and materials science.
Previous studies have explored various metal oxide clusters, but the specific behavior of iron oxide clusters remains an active area of research.

Purpose of the Study:

To investigate the formation, stability, structural, electronic, and magnetic properties of iron oxide clusters (FeO(n)(+)).
To identify key factors influencing cluster stability and magnetic behavior.
To explore potential applications based on unique cluster properties.

Main Methods:

Experimental techniques including mass spectrometry and collision-induced dissociation.
Theoretical calculations utilizing ab initio methods.
Crossed molecular beam experiments to measure fragmentation cross sections.

Main Results:

Clusters with an even number of oxygen atoms, especially FeO(10)(+), demonstrate increased stability.
A structural phase transition was identified around the FeO(10)(+) cluster size.
FeO(n)(+) clusters exhibit isoenergetic low-spin (LS) and high-spin (HS) ground states with distinct magnetic alignments (antiferromagnetic in LS, ferromagnetic in HS).
FeO(10)(+) is the largest thermodynamically stable cluster, possessing the highest magnetic moment (13 μ(B) in HS state).

Conclusions:

Even-numbered iron oxide clusters possess enhanced stability due to specific electronic configurations.
The coexistence of LS and HS states in FeO(n)(+) clusters offers tunable magnetic properties.
FeO(10)(+) represents a significant stable cluster with potential for advanced magnetic applications.