Solvothermal Synthesis and Characterization of Two High-Nuclearity Mixed-Valent Manganese Phosphonate Clusters

Two novel mixed-valent manganese (MnII/MnIII) cluster compounds were synthesized in solvothermal reactions and characterized by single-crystal X-ray diffraction, bond valence sum calculations, IR spectra, elemental analysis, and magnetic measurements. Compound 1 is a Mn19 cluster with a cylindrical...

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Bibliographic Details
Published inInorganic chemistry Vol. 47; no. 9; pp. 3489 - 3491
Main Authors Konar, Sanjit, Clearfield, Abraham
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 05.05.2008
Subjects
Bonding
Clusters
Diffraction
Infrared spectroscopy
Magnetic measurement
Manganese
Mathematical analysis
X-rays
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Summary:Two novel mixed-valent manganese (MnII/MnIII) cluster compounds were synthesized in solvothermal reactions and characterized by single-crystal X-ray diffraction, bond valence sum calculations, IR spectra, elemental analysis, and magnetic measurements. Compound 1 is a Mn19 cluster with a cylindrical core structure. Compound 2 possess a Mn16 core where all of the manganese sites have unique ligation environments. The magnetic measurements on both compounds indicate dominant antiferromagnetic interactions between the metal centers.
Bibliography:Syntheses, BVS calculations, selected bond distances, and magnetization curves for 1 and 2, χ′′M vs T and χ′M vs T plots for 1, and X-ray crystallographic data in CIF format. This material is available free of charge via the Internet at http://pubs.acs.org.
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SourceType-Scholarly Journals-1
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content type line 23
ISSN:0020-1669
1520-510X
DOI:10.1021/ic8001493