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 SM ISO690:2012BOTEZAT, Olga, VAN LEUSEN, Jan, HAUSER, J, DECURTINS, Silvio, LIU, Shi-Xia, KOGERLER, Paul, BACA, Svetlana. A Spontaneous Condensation Sequence from a {Fe 6 Dy 3 } Wheel to a {Fe 7 Dy 4 } Globe. In: Crystal Growth and Design, 2019, nr. 4(19), pp. 2097-2103. ISSN 1528-7483. DOI: https://doi.org/10.1021/acs.cgd.8b01668 |
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  Crystal Growth and Design |
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| Numărul 4(19) / 2019 / ISSN 1528-7483 | ||||||
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| DOI:https://doi.org/10.1021/acs.cgd.8b01668 | ||||||
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In the presence of dicyanamide and N-butyldiethanolamine (bdeaH 2 ), Fe(III) and Dy(III) precursors self-assemble into the charge-neutral coordination cluster [Fe 6 Dy 3 (ib) 9 (bdea) 6 (MeO) 6 ]·MeOH (1) (ib: isobutyrate) featuring an approximately C 3 -symmetric wheel of edge-sharing FeO 6 and DyO 6 N 2 polyhedra. This is followed by a remarkable self-induced conversion of this cluster into the highly condensed globe-shaped coordination cluster [Fe 7 Dy 4 O 4 (OH) 3 (ib) 9.25 (bdea) 6 (NO 3 ) 0.75 (H 2 O)] (2) in methanolic solution under ambient conditions. The transition from {Fe 6 Dy 3 } to {Fe 7 Dy 4 } coincides with a slowdown of the clusters' magnetization dynamics, as evident from a shift of the onset of significant out-of-phase components of their magnetic ac susceptibility from 3.6 K up to 12 K (1000 Hz) in the absence of a static bias field. |
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| Cuvinte-cheie Dysprosium compounds, magnetic susceptibility, wheels |
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<identifier identifierType='DOI'>10.1021/acs.cgd.8b01668</identifier>
<creators>
<creator>
<creatorName>Botezat, O.I.</creatorName>
<affiliation>Institutul de Fizică Aplicată, Moldova, Republica</affiliation>
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<creator>
<creatorName>Van Leusen, J.</creatorName>
<affiliation>RWTH Aachen University, Germania</affiliation>
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<creator>
<creatorName>Hauser, J.</creatorName>
<affiliation>Universitatea din Berna, Elveţia, Elveţia</affiliation>
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<creator>
<creatorName>Decurtins, S.</creatorName>
<affiliation>Universitatea din Berna, Elveţia, Elveţia</affiliation>
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<creator>
<creatorName>Liu, S.</creatorName>
<affiliation>Universitatea din Berna, Elveţia, Elveţia</affiliation>
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<creator>
<creatorName>Kogerler, P.</creatorName>
<affiliation>RWTH Aachen University, Germania</affiliation>
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<creator>
<creatorName>Baca, S.G.</creatorName>
<affiliation>Institutul de Fizică Aplicată, Moldova, Republica</affiliation>
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<titles>
<title xml:lang='en'>A Spontaneous Condensation Sequence from a {Fe 6 Dy 3 } Wheel to a {Fe 7 Dy 4 } Globe</title>
</titles>
<publisher>Instrumentul Bibliometric National</publisher>
<publicationYear>2019</publicationYear>
<relatedIdentifier relatedIdentifierType='ISSN' relationType='IsPartOf'>1528-7483</relatedIdentifier>
<subjects>
<subject>Dysprosium compounds</subject>
<subject>magnetic susceptibility</subject>
<subject>wheels</subject>
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<dates>
<date dateType='Issued'>2019-04-03</date>
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<description xml:lang='en' descriptionType='Abstract'><p>In the presence of dicyanamide and N-butyldiethanolamine (bdeaH <sub>2</sub> ), Fe(III) and Dy(III) precursors self-assemble into the charge-neutral coordination cluster [Fe <sub>6</sub> Dy <sub>3</sub> (ib) <sub>9</sub> (bdea) <sub>6</sub> (MeO) <sub>6</sub> ]·MeOH (1) (ib: isobutyrate) featuring an approximately C <sub>3</sub> -symmetric wheel of edge-sharing FeO <sub>6</sub> and DyO <sub>6</sub> N <sub>2</sub> polyhedra. This is followed by a remarkable self-induced conversion of this cluster into the highly condensed globe-shaped coordination cluster [Fe <sub>7</sub> Dy <sub>4</sub> O <sub>4</sub> (OH) <sub>3</sub> (ib) <sub>9.25</sub> (bdea) <sub>6</sub> (NO <sub>3</sub> ) <sub>0.75</sub> (H <sub>2</sub> O)] (2) in methanolic solution under ambient conditions. The transition from {Fe <sub>6</sub> Dy <sub>3</sub> } to {Fe <sub>7</sub> Dy <sub>4</sub> } coincides with a slowdown of the clusters' magnetization dynamics, as evident from a shift of the onset of significant out-of-phase components of their magnetic ac susceptibility from 3.6 K up to 12 K (1000 Hz) in the absence of a static bias field.</p></description>
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