Syntheses, crystal structures and magnetic properties of cyano- and phenoxide-bridged Fe(III)Mn(III) tetramers containing fac-Fe(III) tricyanides and Mn(III) Schiff bases
DC Field | Value | Language |
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dc.contributor.author | Kwak, Hyun Young | - |
dc.contributor.author | Ryu, Dae Won | - |
dc.contributor.author | Kim, Hyoung Chan | - |
dc.contributor.author | Koh, Eui Kwan | - |
dc.contributor.author | Cho, Beong Ki | - |
dc.contributor.author | Hong, Chang Seop | - |
dc.date.accessioned | 2022-01-08T05:40:59Z | - |
dc.date.available | 2022-01-08T05:40:59Z | - |
dc.date.created | 2021-08-30 | - |
dc.date.issued | 2009 | - |
dc.identifier.issn | 1477-9226 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/134824 | - |
dc.description.abstract | Three cyanide-linked Fe(III)Mn(III) bimetallic clusters, [(Tp)Fe(CN)(3)](2)[Mn(acphen)](2) [1; acphen = N,N'-ethylenebis(2-hydroxyacetophenylideneiminato) dianion], [(Tp) Fe(CN)(3)](2)[Mn(5-Bracphen)](2) [2; 5-Bracphen = N,N'-ethylenebis(5-bromo-2-hydroxyacetophenylideneiminato) dianion], and [(Tp)Fe(CN)(3)](2)[Mn(salen)](2)center dot 6H(2)O [3; salen = N,N'-ethylenebis(salicylidineiminato) dianion], were prepared by self-assembling a facial [(Tp)Fe(CN)(3)](-)[Tp = hydrotris(pyrazolyl) borate] precursor and respective Mn(III) Schiff bases. X-Ray crystal structure analyses revealed that each complex is composed of a central Mn(III) dimer doubly linked by phenoxides of the tetradentate N2O2 Schiff bases and the terminal [(Tp) Fe(CN)(3)](-) groups connecting to the center through cyanides. Using the spin Hamiltonian H = -2J(1)(S-Fe1 center dot S-Mn1 + S-Mn1 center dot S-Fe1a) - 2J(2)(S-Mn1 center dot S-Mn1a), where J(1) stands for the exchange coupling constant between Fe(III) (S-Fe = 1/2) and Mn(III) (S-Mn = 2) through cyanides and J(2) between Mn(III) ions via phenoxides, the best fits corresponded to J(1) = 2.61 cm(-1) and J(2) = 0.85 cm(-1) for 1, J(1) = 2.50 cm(-1) and J(2) = 1.30 cm(-1) for 2, and J(1) = -2.15 cm(-1) and J(2) = 0.55 cm(-1) for 3. The phenoxide routes transmit ferromagnetic interactions in all cases, while ferromagnetic or antiferromagnetic couplings occur through the cyanide linkage. Although the geometric parameters relevant to the magnetic Fe-C N-Mn pathways are analogous to each other their magnetic natures are varied across the compounds, which supports that a degree of orbital overlap is quite sensitive to a subtle structural change in the present system. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | SINGLE-MOLECULE-MAGNET | - |
dc.subject | BUILDING-BLOCK | - |
dc.subject | ORDERING TEMPERATURE | - |
dc.subject | SLOW RELAXATION | - |
dc.subject | CHAIN MAGNET | - |
dc.subject | COMPLEXES | - |
dc.subject | FE | - |
dc.subject | CLUSTERS | - |
dc.subject | CO | - |
dc.subject | MN | - |
dc.title | Syntheses, crystal structures and magnetic properties of cyano- and phenoxide-bridged Fe(III)Mn(III) tetramers containing fac-Fe(III) tricyanides and Mn(III) Schiff bases | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Hong, Chang Seop | - |
dc.identifier.doi | 10.1039/b818559j | - |
dc.identifier.scopusid | 2-s2.0-61549120670 | - |
dc.identifier.wosid | 000263840500011 | - |
dc.identifier.bibliographicCitation | DALTON TRANSACTIONS, no.11, pp.1954 - 1961 | - |
dc.relation.isPartOf | DALTON TRANSACTIONS | - |
dc.citation.title | DALTON TRANSACTIONS | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 1954 | - |
dc.citation.endPage | 1961 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Inorganic & Nuclear | - |
dc.subject.keywordPlus | SINGLE-MOLECULE-MAGNET | - |
dc.subject.keywordPlus | BUILDING-BLOCK | - |
dc.subject.keywordPlus | ORDERING TEMPERATURE | - |
dc.subject.keywordPlus | SLOW RELAXATION | - |
dc.subject.keywordPlus | CHAIN MAGNET | - |
dc.subject.keywordPlus | COMPLEXES | - |
dc.subject.keywordPlus | FE | - |
dc.subject.keywordPlus | CLUSTERS | - |
dc.subject.keywordPlus | CO | - |
dc.subject.keywordPlus | MN | - |
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