Muffin-like lanthanide complexes with an N5O2-donor macrocyclic ligand showing field-induced single-molecule magnet behaviour

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F16%3A33161048" target="_blank" >RIV/61989592:15310/16:33161048 - isvavai.cz</a>
Result on the web
<a href="http://pubs.rsc.org/en/content/articlepdf/2016/DT/C6DT02537D" target="_blank" >http://pubs.rsc.org/en/content/articlepdf/2016/DT/C6DT02537D</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c6dt02537d" target="_blank" >10.1039/c6dt02537d</a>

Result language
angličtina
Original language name
Muffin-like lanthanide complexes with an N5O2-donor macrocyclic ligand showing field-induced single-molecule magnet behaviour
Original language description
Three mononuclear lanthanide complexes of a 2-pyridylmethyl pendant-armed 15-membered ligand {(3,12-bis(2-pyridylmethyl)-3,12,18-triaza-6,9-dioxabicyclo-[12.3.1]octadeca-1,14,16-triene); L} with general formula [Ln(L)(H2O)(NO3)](NO3)2 (Ln = Tb (1), Dy (2), and Er (3)) are reported. Based on X-ray diffraction analysis of 1 and 2, the central lanthanide atoms are nine-coordinated with the N5O4 donor set originating from the ligand L and one coordinated water molecule and one monodentate-bonded nitrato ligand. The coordination geometry of the [LnN5O4] cores can be described as a muffin-like shape. Magnetic measurements revealed that all three compounds show field-induced single-molecule magnet behaviour, with estimated energy barriers U ALMOST EQUAL TO 44-82 K. The experimental study was complemented by CASSCF calculations showing a trend of an increasing first excited energy gap (Tb RIGHTWARDS ARROW Dy RIGHTWARDS ARROW Er) within the muffin-like geometry with the lowest magnetization tunnelling probability for the DyIII complex 2.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Project
<a href="/en/project/LO1305" target="_blank" >LO1305: Development of the center of advanced technologies and materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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