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Related Experiment Video

Updated: May 7, 2026

Stable Aqueous Suspensions of Manganese Ferrite Clusters with Tunable Nanoscale Dimension and Composition

Stable Aqueous Suspensions of Manganese Ferrite Clusters with Tunable Nanoscale Dimension and Composition

Published on: February 5, 2022

Structural Analysis of Cubane-Type Iron Clusters.

Lay Ling Tan¹, R H Holm, Sonny C Lee

¹Department of Chemistry, University of Waterloo, Waterloo, Ontario N2L3G1, Canada.

|September 28, 2013

Summary

This summary is machine-generated.

This study introduces a new protocol to analyze the geometric properties of cubane-type [M4Q4] clusters, revealing deviations from perfect T symmetry in over 130 iron-containing clusters.

Keywords:

cubane-type clusters idealized Td symmetry molecular volumes structural analysis

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Area of Science:

Inorganic Chemistry
Crystallography
Materials Science

Background:

Generalized cluster type [M4(μ3-Q)4L] features a cubane-type [M4Q4] core.
This core structure often deviates from perfect T symmetry.

Purpose of the Study:

To develop and apply a new protocol for analyzing the geometric properties of [M4Q4] clusters.
To quantify deviations from ideal T symmetry in these structures.
To identify general structural features and trends.

Main Methods:

Derivation of expressions for interatomic separations, bond angles, and volumes using M and Q atom coordinates.
Calculation of structural parameters from observed average values.
Comparison of calculated and observed values to measure symmetry deviation.

Main Results:

Analysis of over 130 clusters containing [Fe4Q4] units (Q = S2-, Se2-, Te2-, [NPR3]-, [NR]2-).
Sulfide-bridged clusters form the largest subset.
Identification of general structural features and trends in parameters.

Conclusions:

The developed protocol effectively measures deviations from tetrahedral symmetry in [M4Q4] clusters.
A comprehensive database of structural properties has been compiled.
Insights into the structural diversity of these important inorganic clusters were gained.