Selective Coordination of Self-Assembled Hexanuclear [Ni(4)Ln(2)] and [Ni(2)Mn(2)Ln(2)] (Ln = Dy-III, Tiai(III), and Ho-III) Complexes: Stepwise Synthesis, Structures, and Magnetic Properties

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F20%3A73604081" target="_blank" >RIV/61989592:15310/20:73604081 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.acs.org/doi/10.1021/acs.inorgchem.0c02148" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.inorgchem.0c02148</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.inorgchem.0c02148" target="_blank" >10.1021/acs.inorgchem.0c02148</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Selective Coordination of Self-Assembled Hexanuclear [Ni(4)Ln(2)] and [Ni(2)Mn(2)Ln(2)] (Ln = Dy-III, Tiai(III), and Ho-III) Complexes: Stepwise Synthesis, Structures, and Magnetic Properties

Popis výsledku v původním jazyce

The versatility for a unique aggregation of heterometallic 3d-4f and 3d-3d&apos;-4f ions by the new Schiff base ligand 2-{[(2-hydroxy-3-methoxybenzypimino]methyllphenol (H2L) providing O3N donors has been examined. A series of complexes having the general formula [Ln(2)Ni(4)(L)(4)(mu(1,3)-CH3CO2)(2)(mu(3)-OH)(4)(MeOH)(2)]center dot xCH(3)OH center dot yH(2)O [where Ln Dy-III, x = 4, y = 0 (1), Ln = Tb-III, x = 0, y = 4 (2), and Ln = Ho-III, x = 4, y = 0 (3)] were obtained from the sequential use of lanthanide(III) nitrate salts and Ni(CH3CO2)(2)center dot 4H(2)O. The incorporation of two different 3d ions and one 4f ion in the same coordination aggregate was achieved through the isomorphic replacement of two Ni-III centers by Mn-III ions as second group of cationic complexes, [Ln(2)Ni(2)Mn(2)(L)(4)(mu(1,3)-CH3CO2)(2)(mu(3)-OH)(4)(MeOH)(2)]-(NO3)(2)center dot 2CH(3)OH [where Ln = Dy-III (4), Tb-III (5), and Ho-III (6)]. Direct-current (dc) magnetic susceptibility studies hint to the possibility of ferromagnetic interactions occurring in the aggregates, whereas alternating-current susceptibility measurements find both the Dy-III analogues, 1 and 4, to show out-of-phase components at zero applied dc field, characteristic of single-molecule-magnet (SMM) behavior. Micro-SQUID studies reveal open hysteresis loops for 1, corroborating its SMM character. Further detailed complete-active-space self-consistent-field and density functional theory calculations were also performed, supporting the experimental findings in complexes 1 and 4.

Název v anglickém jazyce

Selective Coordination of Self-Assembled Hexanuclear [Ni(4)Ln(2)] and [Ni(2)Mn(2)Ln(2)] (Ln = Dy-III, Tiai(III), and Ho-III) Complexes: Stepwise Synthesis, Structures, and Magnetic Properties

Popis výsledku anglicky

The versatility for a unique aggregation of heterometallic 3d-4f and 3d-3d&apos;-4f ions by the new Schiff base ligand 2-{[(2-hydroxy-3-methoxybenzypimino]methyllphenol (H2L) providing O3N donors has been examined. A series of complexes having the general formula [Ln(2)Ni(4)(L)(4)(mu(1,3)-CH3CO2)(2)(mu(3)-OH)(4)(MeOH)(2)]center dot xCH(3)OH center dot yH(2)O [where Ln Dy-III, x = 4, y = 0 (1), Ln = Tb-III, x = 0, y = 4 (2), and Ln = Ho-III, x = 4, y = 0 (3)] were obtained from the sequential use of lanthanide(III) nitrate salts and Ni(CH3CO2)(2)center dot 4H(2)O. The incorporation of two different 3d ions and one 4f ion in the same coordination aggregate was achieved through the isomorphic replacement of two Ni-III centers by Mn-III ions as second group of cationic complexes, [Ln(2)Ni(2)Mn(2)(L)(4)(mu(1,3)-CH3CO2)(2)(mu(3)-OH)(4)(MeOH)(2)]-(NO3)(2)center dot 2CH(3)OH [where Ln = Dy-III (4), Tb-III (5), and Ho-III (6)]. Direct-current (dc) magnetic susceptibility studies hint to the possibility of ferromagnetic interactions occurring in the aggregates, whereas alternating-current susceptibility measurements find both the Dy-III analogues, 1 and 4, to show out-of-phase components at zero applied dc field, characteristic of single-molecule-magnet (SMM) behavior. Micro-SQUID studies reveal open hysteresis loops for 1, corroborating its SMM character. Further detailed complete-active-space self-consistent-field and density functional theory calculations were also performed, supporting the experimental findings in complexes 1 and 4.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

INORGANIC CHEMISTRY

ISSN

0020-1669

e-ISSN

—

Svazek periodika

59

Číslo periodika v rámci svazku

24

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

16

Strana od-do

17929-17944

Kód UT WoS článku

000602578600016

EID výsledku v databázi Scopus

2-s2.0-85097876374