| Mononuclear manganese(III) complexes as building blocks for the design of trinuclear manganese clusters: study of the ligand influence on the magnetic properties of the [Mn3(mu3-O)](7+) core. | |
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MedLine Citation:
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PMID: 18543906 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The synthesis, crystal structure, and magnetic properties of three new manganese(III) clusters are reported, [Mn 3(mu 3-O)(phpzH) 3(MeOH) 3(OAc)] (1), [Mn 3(mu 3-O)(phpzMe) 3(MeOH) 3(OAc)].1.5MeOH (2), and [Mn 3(mu 3-O)(phpzH) 3(MeOH) 4(N 3)].MeOH (3) (H 2phpzH = 3(5)-(2-hydroxyphenyl)-pyrazole and H 2phpzMe = 3(5)-(2-hydroxyphenyl)-5(3)-methylpyrazole). Complexes 1- 3 consist of a triangle of manganese(III) ions with an oxido-center bridge and three ligands, phpzR (2-) (R = H, Me) that form a plane with the metal ions. All the complexes contain the same core with the general formula [Mn 3(mu 3-O)(phpzR) 3] (+). Methanol molecules and additional bridging ligands, that is, acetate (complexes 1 and 2) and azide (complex 3), are at the terminal positions. Temperature dependent magnetic susceptibility studies indicate the presence of predominant antiferromagnetic intramolecular interactions between manganese(III) ions in 1 and 3, while both antiferromagnetic and ferromagnetic intramolecular interactions are operative in 2. |
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Authors:
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Marta Viciano-Chumillas; Stefania Tanase; Ilpo Mutikainen; Urho Turpeinen; L Jos de Jongh; Jan Reedijk |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2008-06-11 |
Journal Detail:
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Title: Inorganic chemistry Volume: 47 ISSN: 1520-510X ISO Abbreviation: Inorg Chem Publication Date: 2008 Jul |
Date Detail:
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Created Date: 2008-07-01 Completed Date: 2008-08-13 Revised Date: 2009-02-26 |
Medline Journal Info:
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Nlm Unique ID: 0366543 Medline TA: Inorg Chem Country: United States |
Other Details:
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Languages: eng Pagination: 5919-29 Citation Subset: IM |
Affiliation:
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Gorlaeus Laboratories, Leiden Institute of Chemistry, Leiden University, PO Box 9502, 2300 RA Leiden, The Netherlands. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Ligands Magnetics* Manganese* Organometallic Compounds / chemistry* Temperature |
| Chemical | |
Reg. No./Substance:
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0/Ligands; 0/Organometallic Compounds; 7439-96-5/Manganese |
| Comments/Corrections | |
Erratum In:
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Inorg Chem. 2009 Feb 2;48(3):1258 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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