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Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...

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Related Experiment Video

Updated: Jun 22, 2026

The Synthesis of [Sn10(Si(SiMe3)3)4]2- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique

The Synthesis of [Sn₁₀(Si(SiMe₃)₃)₄]²^- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique

Published on: November 28, 2016

Undecanuclear mixed-valence 3d-4f bimetallic clusters.

Takuya Shiga¹, Tatsuya Onuki, Takuto Matsumoto

¹Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba 305-8571, Japan.

Chemical Communications (Cambridge, England)

|June 13, 2009

Summary

Two new manganese-lanthanide clusters were synthesized, exhibiting large spin ground states. The terbium cluster functions as a single-molecule magnet, a key development in molecular magnetism.

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Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)

Published on: December 29, 2016

Area of Science:

Coordination Chemistry
Materials Science
Magnetism

Background:

Lanthanide-containing clusters are of interest for their unique magnetic properties.
Developing molecular materials with high spin states is crucial for advanced magnetic applications.

Purpose of the Study:

To synthesize and characterize novel undecanuclear 3d-4f clusters.
To investigate the magnetic properties, including spin ground states and single-molecule magnet behavior, of these new clusters.

Main Methods:

Chemical synthesis of {Mn(III)(4)Mn(IV)Ln(III)(6)} clusters where Ln = Gd or Tb.
Magnetic property measurements to determine spin ground states and relaxation dynamics.

Main Results:

Successful synthesis of two undecanuclear clusters: {Mn(III)(4)Mn(IV)Gd(III)(6)} and {Mn(III)(4)Mn(IV)Tb(III)(6)}.
Both synthesized clusters exhibit large spin ground states.
The terbium-containing cluster demonstrates single-molecule magnet behavior.

Conclusions:

Undecanuclear manganese-lanthanide clusters can be synthesized with significant magnetic properties.
The incorporation of terbium into these clusters enables single-molecule magnet functionality.
These findings contribute to the design of new molecular magnetic materials.