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http://hdl.handle.net/2445/154907
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DC Field | Value | Language |
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dc.contributor.author | Seth, Piya | - |
dc.contributor.author | Ghosh, Soumavo | - |
dc.contributor.author | Figuerola i Silvestre, Albert | - |
dc.contributor.author | Ghosh, Asutosh | - |
dc.date.accessioned | 2020-04-03T10:17:32Z | - |
dc.date.available | 2020-04-03T10:17:32Z | - |
dc.date.issued | 2013-10-03 | - |
dc.identifier.issn | 1477-9226 | - |
dc.identifier.uri | http://hdl.handle.net/2445/154907 | - |
dc.description.abstract | Five new trinuclear heterometallic CuII-MnII complexes [(CuL)2Mn(O2CPh)2] (1), [(CuL)2Mn(N3)2] (2), [(CuL)2Mn(NCO)2] (3), [(CuL)2Mn(NO3)2] (4) and [(CuL)2Mn(Sal)2]∙CH2Cl2 (5) have been synthesized with the di-Schiff base ligand H2L (where, H2L= N,N'-bis(salicylidene)-1,3-propanediamine and Sal= salicylate). These complexes with different anionic co-ligands have been synthesized to attain a large variation in phenoxido bridging angles and to investigate its consequence on magnetic properties. Single crystal X-ray diffraction analyses reveal that complexes 1, 2, 4 and 5 are linear, whereas 3 has an angular geometry. Variable temperature magnetic susceptibility measurements suggest that all five complexes possess an overall antiferromagnetic interaction between CuII and MnII ions, which results in a final ferrimagnetic ground state with spin 3/2 in the CuII-MnII-CuII trinuclear structure. The weakest antiferromagnetic interaction (JCu-Mn= -7.0 cm-1) is observed for 2 having the lowest value of the Cu-O-Mn angle (92.0°), while the strongest antiferromagnetic interaction (JCu-Mn= -26.5 cm-1) is observed for 3 having the largest Cu-O-Mn angle (101.4°). Complexes 1, 4 and 5 show an average Cu-O-Mn angles of 98.2°, 97.6° and 97.7°, respectively, that lead to intermediate antiferromagnetic interactions (JCu-Mn = -9.6, -9.7, -9.3 cm-1 respectively). | - |
dc.format.extent | 9 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Royal Society of Chemistry | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1039/c3dt52012a | - |
dc.relation.ispartof | Dalton Transactions, 2013, vol. 43, num. 3, p. 990-998 | - |
dc.relation.uri | https://doi.org/10.1039/c3dt52012a | - |
dc.rights | (c) Seth, Piya et al., 2013 | - |
dc.source | Articles publicats en revistes (Química Inorgànica i Orgànica) | - |
dc.subject.classification | Lligands | - |
dc.subject.classification | Imines | - |
dc.subject.classification | Difracció de raigs X | - |
dc.subject.other | Ligands | - |
dc.subject.other | Imines | - |
dc.subject.other | X-rays diffraction | - |
dc.title | Trinuclear heterometallic CuII-MnII complexes of a salen type Schiff base ligand: anion dependent variation of phenoxido bridging angles and magnetic coupling | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 629881 | - |
dc.date.updated | 2020-04-03T10:17:34Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Química Inorgànica i Orgànica) |
Files in This Item:
File | Description | Size | Format | |
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629881.pdf | 900.61 kB | Adobe PDF | View/Open |
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