Magnetism of Linear [Ln3]9+ Oxo-Bridged Clusters (Ln = Pr, Nd) Supported inside a [R3PR′]+ Phosphonium Coordination Material

Two new isostructural phosphine coordination materials, Ln-PCM-21 (Ln = Pr, Nd), have been obtained using a tris(p-carboxylated) methyltriphenylphosphonium ligand that is formally dianionic when triply deprotonated, allowing access to materials based on uncommon metal-to-ligand ratios. The polymers...

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Bibliographic Details
Published in:Inorganic chemistry 2014-12, Vol.53 (24), p.12674-12676
Main Authors: Waggoner, Nolan W, Saccoccia, Beau, Ibarra, Ilich A, Lynch, Vincent M, Wood, Paul T, Humphrey, Simon M
Format: Article
Language:English
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Summary:Two new isostructural phosphine coordination materials, Ln-PCM-21 (Ln = Pr, Nd), have been obtained using a tris(p-carboxylated) methyltriphenylphosphonium ligand that is formally dianionic when triply deprotonated, allowing access to materials based on uncommon metal-to-ligand ratios. The polymers of the formula [Ln3(mptbc)4]X·solv (X = Cl–, NO3 –) are cationic and contain unusual, linear oxo-bridged [Ln3]9+ clusters. Magnetic susceptibility data for both the Pr and Nd analogues has been compared to models based on three contrasting approaches.
ISSN:0020-1669
1520-510X
DOI:10.1021/ic5023642