dc.contributor.author | Kizas, Christos M. | en |
dc.contributor.author | Manos, Manolis J. | en |
dc.contributor.author | Nastopoulos, Vassilios | en |
dc.contributor.author | Boudalis, Athanassios K. | en |
dc.contributor.author | Sanakis, Yiannis | en |
dc.contributor.author | Tasiopoulos, Anastasios J. | en |
dc.creator | Kizas, Christos M. | en |
dc.creator | Manos, Manolis J. | en |
dc.creator | Nastopoulos, Vassilios | en |
dc.creator | Boudalis, Athanassios K. | en |
dc.creator | Sanakis, Yiannis | en |
dc.creator | Tasiopoulos, Anastasios J. | en |
dc.date.accessioned | 2019-11-21T06:19:59Z | |
dc.date.available | 2019-11-21T06:19:59Z | |
dc.date.issued | 2012 | |
dc.identifier.issn | 1477-9226 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/55687 | |
dc.description.abstract | Five novel pentanuclear Fe 3+ clusters with the aliphatic amino-alcohol ligands 3-amino-1-propanol (Hap) and 2-(hydroxymethyl)piperidine (Hhmpip) [Fe 5(μ 3-Ο) 2(L) 4(O 2CR) 7] [L = ap -, R = Ph (1) | en |
dc.description.abstract | L = ap -, R = C(CH 3) 3 (2) | en |
dc.description.abstract | L = hmpip -, R = Ph (3) | en |
dc.description.abstract | L = hmpip -, R = C(CH 3) 3 (4)] and [Fe 5(μ 4-Ο)(μ 3-Ο)(O 2CC(CH 3) 3) 8(ap) 2Cl(HO 2CC(CH 3) 3)] (5) are reported. Compounds 1-4 were prepared from reactions of preformed trinuclear Fe 3+ clusters with the ligands in a molar ratio 1:5 in MeCN (1, 3, 4) or DMF (2), whereas compound 5 was prepared from the reaction of FeCl 3 with Hap in the presence of HO 2CC(CH 3) 3 in a molar ratio 1:3:2 in MeCN. To the best of our knowledge, 1-5 are the first examples of Fe 3+ complexes with the ligands Hap and Hhmpip. The structures of 1-4 are composed of a quasi-planar [Fe 5(μ 3-O) 2] 11+ core which consists of two vertex-sharing [Fe 3(μ 3-O)] 7+ triangles. The structure of 5 is based on the [Fe 5(μ 4- O)(μ 3-O)] 11+ core, in which the five Fe 3+ ions adopt a monocapped trigonal pyramidal topology. Variable-temperature magnetic susceptibility measurements on powdered microcrystalline samples of 1 and 5 revealed the existence of antiferromagnetic interactions which led to an S = 5/2 ground state. Mössbauer spectroscopy studies on powdered microcrystalline samples of 1 and 5 confirmed that all iron ions of both complexes are in the Fe 3+ (S = 5/2) state. The variation of the ligand environment in the various iron sites was reflected in their different quadruple splitting parameters. At T < 50 K the Mössbauer spectra indicated the onset of spin relaxation effects in the time scale of the technique (10 -7-10 -8 s). © 2012 The Royal Society of Chemistry. | en |
dc.source | Dalton Transactions | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84856692662&doi=10.1039%2fc1dt11487e&partnerID=40&md5=81d681fa9e25b1f4f9a7b8d86c420225 | |
dc.subject | article | en |
dc.subject | chemistry | en |
dc.subject | Topology | en |
dc.subject | synthesis | en |
dc.subject | Magnetic susceptibility | en |
dc.subject | magnetism | en |
dc.subject | chemical structure | en |
dc.subject | Ferric Compounds | en |
dc.subject | ferric ion | en |
dc.subject | Mossbauer | en |
dc.subject | Mossbauer spectroscopy | en |
dc.subject | X ray crystallography | en |
dc.subject | Metal ions | en |
dc.subject | Molybdenum | en |
dc.subject | Chlorine | en |
dc.subject | Ligands | en |
dc.subject | Time-scales | en |
dc.subject | ligand | en |
dc.subject | Models, Molecular | en |
dc.subject | Crystallography, X-Ray | en |
dc.subject | Antiferro-magnetic interactions | en |
dc.subject | Variable temperature | en |
dc.subject | Magnetic susceptibility measurements | en |
dc.subject | Methanol | en |
dc.subject | Molar ratio | en |
dc.subject | 3 amino 1 propanols | en |
dc.subject | Amino Alcohols | en |
dc.subject | aminoalcohol | en |
dc.subject | Iron ions | en |
dc.subject | Magnetic Phenomena | en |
dc.subject | Microcrystalline samples | en |
dc.subject | Pentanuclear complexes | en |
dc.subject | Quadruple splitting | en |
dc.subject | Spectroscopy, Mossbauer | en |
dc.subject | Spin relaxation | en |
dc.subject | Ssbauer spectroscopies | en |
dc.subject | Structural topologies | en |
dc.title | Pentanuclear complexes with unusual structural topologies from the initial use of two aliphatic amino-alcohol ligands in Fe chemistry | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1039/c1dt11487e | |
dc.description.volume | 41 | |
dc.description.issue | 5 | |
dc.description.startingpage | 1544 | |
dc.description.endingpage | 1552 | |
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 | <p>Cited By :8</p> | en |
dc.source.abbreviation | Dalton Trans. | en |
dc.contributor.orcid | Tasiopoulos, Anastasios J. [0000-0002-4804-3822] | |
dc.contributor.orcid | Nastopoulos, Vassilios [0000-0003-4190-1342] | |
dc.contributor.orcid | Boudalis, Athanassios K. [0000-0002-8797-1170] | |
dc.gnosis.orcid | 0000-0002-4804-3822 | |
dc.gnosis.orcid | 0000-0003-4190-1342 | |
dc.gnosis.orcid | 0000-0002-8797-1170 | |