dc.contributor.author | Koumousi, Evangelia S. | |
dc.contributor.author | Lazari, Gerasimi | en |
dc.contributor.author | Grammatikopoulos, Spyridon | en |
dc.contributor.author | Papatriantafyllopoulou, Constantina | en |
dc.contributor.author | Manos, Manolis J. | en |
dc.contributor.author | Perlepes, Spyros P. | en |
dc.contributor.author | Tasiopoulos, Anastasios J. | en |
dc.contributor.author | Christou, George | en |
dc.contributor.author | Stamatatos, Theocharis C. | en |
dc.contributor.editor | Desiraju, G.R. | en |
dc.contributor.editor | Mudring, A-V. | en |
dc.contributor.editor | Peruzzini, Maurizio | en |
dc.creator | | |
dc.creator | Koumousi, Evangelia S. | en |
dc.creator | Lazari, Gerasimi | en |
dc.creator | Grammatikopoulos, Spyridon | en |
dc.creator | Papatriantafyllopoulou, Constantina | en |
dc.creator | Manos, Manolis J. | en |
dc.creator | Perlepes, Spyros P. | en |
dc.creator | Tasiopoulos, Anastasios J. | en |
dc.creator | Christou, George | en |
dc.creator | Stamatatos, Theocharis C. | en |
dc.creator | Koumousi, Evangelia S. | en |
dc.date.accessioned | 2024-09-02T10:37:43Z | |
dc.date.available | 2024-09-02T10:37:43Z | |
dc.date.issued | 2021-09-15 | |
dc.identifier.issn | 0277-5387 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/66358 | en |
dc.description.abstract | The one-pot reaction between Mn(O2CMe)2·4H2O, salicylhydroxamic acid (shaH2) and Me4NOH·5H2O in a molar ratio of 2:1:2, and a solvent mixture comprising MeCN and MeOH, affords the new mixed-valence cluster compound (Me4N)4[MnII2MnIII9O4(O2CMe)9(shi)6] (1) in moderate yields. The anion of the tetradentate (N,O,O,O) chelating/bridging ligand shi3− resulted from the in-situ metal ion-assisted amide-iminol tautomerism of shaH2. The [MnII2MnIII9(μ3-O)4(μ-OR)3(μ3-NO)6]14+ core of 1 comprises four vertex-sharing {MnIII3(μ3-O2−)}7+ triangular subunits of different types, which are linked to each other and the MnII atoms through the oximato arms and the carboxylate O-atoms of six η1:η1:η1:η2:μ3 shi3− and three η1:η2:μ3 MeCO2− groups, respectively. Peripheral ligation about the core is provided by six η1:η1:μ MeCO2− groups and the chelating parts of the shi3− ligands. Solid-state direct-current (dc) magnetic susceptibility studies revealed the presence of predominant antiferromagnetic exchange interactions between the Mn centers, mainly promoted by the coplanarity of the μ3-O2− within the {Mn3} triangular planes and the insignificant distortion of the Mn[sbnd]N[sbnd]O[sbnd]Mn bridging units. Low-lying excited states precluded obtaining a good fit from the magnetization data, and the ground state was instead determined from the alternating-current (ac) data, which indicated an S = 3 ground state for 1. The combined results emphasize the continuing supply from the use of the salicylhydroxime chelating/bridging ligand of new 3d-metal clusters of very rare nuclearities and beautiful molecular structures. | en |
dc.description.sponsorship | This research is co-financed by Greece and the European Union (European Social Fund - ESF) through the Operational Programme “Human Resources Development, Education and Lifelong Learning 2014-2020” in the context of the project “New Families of Molecular Ferromagnetic Materials with Implications in Molecular Electronics and Spintronics” (MIS 5047176). A.J.T acknowledges the Cyprus Research and Innovation Foundation Research Grant “EXCELLENCE/1216/0076” which is co-funded by the Republic of Cyprus and the European Regional Development Fund. G.C. thanks the U.S. National Science Foundation (Grant CHE-1900321) for support. | en |
dc.language.iso | eng | en |
dc.publisher | Elsevier | en |
dc.source | Polyhedron | en |
dc.source.uri | https://www.sciencedirect.com/science/article/pii/S0277538721002801?via%3Dihub | en |
dc.subject | Coordination clusters | en |
dc.subject | Magnetochemistry | en |
dc.subject | Manganese | en |
dc.subject | Salicylhydroxamic acid | en |
dc.subject | Undecanuclearity | en |
dc.title | Rare nuclearities in Mn/oxo cluster chemistry: Synthesis and characterization of a mixed-valence {MnII/III11} complex bearing acetate and salicylhydroximate(-3) bridging/chelating ligands | en |
dc.type | info:eu-repo/semantics/article | en |
dc.identifier.doi | 10.1016/j.poly.2021.115298 | |
dc.description.volume | 206 | |
dc.author.faculty | 002 Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences | |
dc.author.department | Τμήμα Χημείας / Department of Chemistry | |
dc.type.uhtype | Article | en |
dc.description.notes | © 2021 Elsevier Ltd | en |
dc.contributor.orcid | Tasiopoulos, Anastasios J. [0000-0002-4804-3822] | |
dc.contributor.orcid | Theocharis Stamatatos [0000-0002-9798-9331] | |
dc.contributor.orcid | Grammatikopoulos, Spyridon [0000-0001-9787-9071] | |
dc.contributor.orcid | Papatriantafyllopoulou, Constantina [0000-0002-5652-7747] | |
dc.contributor.orcid | Manos, Manolis J. [0000-0001-7645-5560] | |
dc.contributor.orcid | Perlepes, Spyros P. [0000-0003-1792-6611] | |
dc.contributor.orcid | Christou, George [0000-0001-5923-5523] | |
dc.contributor.orcid | Stamatatos, Theocharis C. [0000-0002-9798-9331] | |
dc.type.subtype | SCIENTIFIC_JOURNAL | en |
dc.gnosis.orcid | 0000-0002-4804-3822 | |
dc.gnosis.orcid | 0000-0002-9798-9331 | |
dc.gnosis.orcid | 0000-0001-9787-9071 | |
dc.gnosis.orcid | 0000-0002-5652-7747 | |
dc.gnosis.orcid | 0000-0001-7645-5560 | |
dc.gnosis.orcid | 0000-0003-1792-6611 | |
dc.gnosis.orcid | 0000-0001-5923-5523 | |
dc.gnosis.orcid | 0000-0002-9798-9331 | |