dc.contributor.author | Papatriantafyllopoulou, Constantina | en |
dc.contributor.author | Stamatatos, Theocharis C. | en |
dc.contributor.author | Wernsdorfer, W. | en |
dc.contributor.author | Teat, S. J. | en |
dc.contributor.author | Tasiopoulos, Anastasios J. | en |
dc.contributor.author | Escuer, Albert | en |
dc.contributor.author | Perlepes, Spyros P. | en |
dc.creator | Papatriantafyllopoulou, Constantina | en |
dc.creator | Stamatatos, Theocharis C. | en |
dc.creator | Wernsdorfer, W. | en |
dc.creator | Teat, S. J. | en |
dc.creator | Tasiopoulos, Anastasios J. | en |
dc.creator | Escuer, Albert | en |
dc.creator | Perlepes, Spyros P. | en |
dc.date.accessioned | 2019-11-21T06:22:01Z | |
dc.date.available | 2019-11-21T06:22:01Z | |
dc.date.issued | 2010 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/55963 | |
dc.description.abstract | The combined use of the anion of phenyl(2-pyridyl)ketone oxime (ppko-) and azides (N3 -) in nickel(II) carboxylate chemistry has afforded two new NiII 5clusters, [Ni5(O2CR′)2(N3)4(ppko)4(MeOH)4] [R′ = H (1), Me (2)]. The structurally unprecedented {Ni5(μ-N3)2(μ3-N3)2}6+cores of the two clusters are almost identical and contain the five NiIIatoms in a bowtie topology. Two N3 -ions are end-on doubly bridging and the other two ions end-on triply bridging. The end-on μ3-N3 -groups link the central NiIIatoms with the two peripheral metal ions on either side of the molecule, while the Ni···Ni bases of the triangles are each bridged by one end-on μ-N3 -group. Variable- temperature, solid-state direct-(dc) and alternating-current (ac) magnetic susceptibility, and magnetization studies at 2.0 K were carried out on both complexes. The data indicate an overall ferromagnetic behavior and an S = 5 ground state for both compounds. The ac susceptibility studies on 1 reveal nonzero, frequency-dependent out-of-phase (ΧM″) signals at temperatures below ∼3.5 K | en |
dc.description.abstract | complex 2 reveals no ΧM″ signals. However, single-crystal magnetization versus dc field scans at variable temperatures and variable sweep rates down to 0.04 K on 1 reveal no noticeable hysteresis loops, except very minor ones at 0.04 K assignable to weak intermolecular interactions propagated by nonclassical hydrogen bonds. © 2010 American Chemical Society. | en |
dc.source | Inorganic chemistry | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-78149304676&doi=10.1021%2fic1014829&partnerID=40&md5=b730ceaf1e2ecd4a7dc2f1609fb65ffe | |
dc.title | Combining azide, carboxylate, and 2-pyridyloximate ligands in transition-metal chemistry: Ferromagnetic NiII 5clusters with a bowtie skeleton | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1021/ic1014829 | |
dc.description.volume | 49 | |
dc.description.issue | 22 | |
dc.description.startingpage | 10486 | |
dc.description.endingpage | 10496 | |
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.source.abbreviation | Inorg.Chem. | en |
dc.contributor.orcid | Tasiopoulos, Anastasios J. [0000-0002-4804-3822] | |
dc.contributor.orcid | Papatriantafyllopoulou, Constantina [0000-0002-5652-7747] | |
dc.contributor.orcid | Stamatatos, Theocharis C. [0000-0002-9798-9331] | |
dc.gnosis.orcid | 0000-0002-4804-3822 | |
dc.gnosis.orcid | 0000-0002-5652-7747 | |
dc.gnosis.orcid | 0000-0002-9798-9331 | |