Magnetic orders in copper hydroxide n-alkylsulfonate layered compounds

Park, S.-H; Lee, C.H; Lee, C.E; Ri, H.-C.; Shim, S.Y.

doi:10.1016/s0025-5408(02)00847-4

Cited by 10 publications

(2 citation statements)

References 19 publications

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“…Our preceding work showed that the newly synthesized copper-based alkylsulfonate anhydrous compounds possess a long-range order, in contrast to the hydrated derivatives exhibiting no sign of long-range order. To see the effect of molecular size of the intercalated anion on the magnetic behavior of the inorganic layer, we have carried out magnetic measurements on the new series of alkylsulfonate derivatives with no lattice water.…”

Section: Resultsmentioning

confidence: 98%

“…The copper compounds exhibit a short-range antiferromagnetic interaction, whereas the nickel compounds are ferromagnets and the cobalt compounds are ferrimagnets. On the other hand, in our previous work, long-range magnetic order, with both antiferromagnetic and ferromagnetic interactions in copper-based alkylsulfonate anhydrates, has been observed . To discuss the magnetic behavior of such compounds in relation to their dimensionality, a complete series of alkylsulfonate salts with different basal spacings is necessary.…”

Section: Introductionmentioning

confidence: 99%

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Layered Copper Hydroxide n-Alkylsulfonate Salts: Synthesis, Characterization, and Magnetic Behaviors in Relation to the Basal Spacing

Park

Lee

2004

J. Phys. Chem. B

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A series of hybrid inorganic-organic copper(II) hydroxy n-alkylsulfonate with a triangular lattice, Cu(2)(OH)(3)(C(n)H(2)(n)(+1)SO(3)) (n = 6, 8, 10), are prepared by anion exchange, starting from copper hydroxy nitrate Cu(2)(OH)(3)NO(3). These compounds show a layered structure as determined by X-ray diffraction, with interlayer distances of 14.3-34.8 A in alternation with interdigitated bilayer packing. Magnetic properties have been investigated by means of dc and ac measurements. All the compounds show similar metamagnet behaviors, with a Neel temperature of about 11 K. A subtle difference in the ac magnetic susceptibility among the compounds is understood by the existence of hydrogen bonding between the sulfonate headgroup and the hydroxide anion. A detailed molecular structure of the alkyl chains incorporated to the inorganic copper hydroxide layer is also discussed from the FTIR data.

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Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Layered Copper Hydroxide n-Alkylsulfonate Salts: Synthesis, Characterization, and Magnetic Behaviors in Relation to the Basal Spacing

Park

Lee

2004

J. Phys. Chem. B

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Layered Simple Hydroxides Functionalized by Fluorene‐Phosphonic Acids: Synthesis, Interface Theoretical Insights, and Magnetoelectric Effect

Evrard

Chaker

Roger

et al. 2017

Adv Funct Materials

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International audienceCopper- and cobalt-based layered simple hydroxides (LSH) are successfully functionalized by a series of fluorene mono- and diphosphonic acids, using anionic exchange reactions and a preintercalation strategy. The lateral functionalization of the fluorene moieties has only little impact on the overall structure of the obtained layered hybrid materials but it influences the organization of the molecules within the interlamellar spacing. For bulky fluorene (9,9-dioctyl derivative), luminescence is preserved when inserted into copper and cobalt hydroxydes, whereas it is completely quenched for the other fluorenes. Detailed characterization of the internal structure and chemical bonding properties for copper- and cobalt-based hybrids is performed via ancillary experimental techniques. For the copper-based LSH class, for which more elusive findings are found, first-principles molecular dynamics simulations unravel the fundamental stabilizing role of the H-bonding network promoted within the local environments of the fluorene mono- and diphosphonic acids. The cobalt series of compounds constitute a new class of hybrid magnets, with ordering temperatures ranging from 11.8 to 17.8 K and show a clear magnetoelectric effect. This effect appears above a threshold magnetic field, which is null below the magnetic ordering temperature, and it persists in the paramagnetic regime till about 110 K

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Functional Hybrid Materials Based on Layered Simple Hydroxide Hosts and Dicarboxylate Schiff Base Metal Complex Guests

et al. 2012

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The insertion of carboxysalen‐type complexes into magnetic layered transition‐metal simple hydroxides has provided new hybrid compounds. Three kinds of carboxysalen ligands have been used: an ethylenediamine bridge (SED‐H2), a chiral cyclohexanediamine bridge [(S,S)‐SCD‐H2 and (R,R)‐SCD‐H2], and an aromatic o‐phenylenediamine bridge (SBD‐H2). The ccorresponding CuII, NiII, CoII, ZnII, MnIII, and AlIII complexes were synthesized and inserted into layered cobalt and copper hydroxides. The structural and spectroscopic investigations confirmed the successful insertion‐grafting of the complexes leading to new layered hybrid materials in which the inserted complexes act as pillars between the inorganic layers. The use of carboxylate anchoring functions enabled some of the difficulties encountered during the previously reported insertion of sulfonatosalen complex analogues to be overcome, namely hydrolysis and decomplexation during the insertion reaction. Hence, in this work it was possible to insert a wide variety of complexes into layered simple hydroxides, including MIII complexes, for the first time. The insertion of chiral carboxysalen complexes led to the formation of chiral magnets in which chirality transfer to the inorganic layers was evidenced and seems to be favored by the carboxylate anchoring groups. Finally, magnetic characterization showed that the copper hydroxide hybrids exhibit overall antiferrimagnetic behavior, whereas the cobalt hydroxide hybrids present ferromagnetic ordering, with ordering temperatures ranging from 6.5 to 12.8 K. In this case the nature of the cation inserted between the layers influences the magnetic behavior of the hybrid, contrary to what was observed in the case of the sulfonate analogues.

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Magnetic orders in copper hydroxide n-alkylsulfonate layered compounds

Cited by 10 publications

References 19 publications

Layered Copper Hydroxide n-Alkylsulfonate Salts: Synthesis, Characterization, and Magnetic Behaviors in Relation to the Basal Spacing

Layered Copper Hydroxide n-Alkylsulfonate Salts: Synthesis, Characterization, and Magnetic Behaviors in Relation to the Basal Spacing

Layered Simple Hydroxides Functionalized by Fluorene‐Phosphonic Acids: Synthesis, Interface Theoretical Insights, and Magnetoelectric Effect

Functional Hybrid Materials Based on Layered Simple Hydroxide Hosts and Dicarboxylate Schiff Base Metal Complex Guests

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