Assembly of oximate-bridged Mn6 cluster to a one-dimensional chain

An, Guangyu; Cui, Ai‐Li; Kou, Hui‐Zhong

doi:10.1016/j.inoche.2011.05.050

Cited by 17 publications

(8 citation statements)

References 33 publications

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“…The χMT values observed at 300 K are approximately 20.2 and 20.7 cm 3 •mol −1 K for 1 and 2, respectively. Although these values are somewhat higher than that expected for six magnetically isolated Mn III ions (χMT ≈ 18.0 cm 3 •mol −1 K with g = 1.99), they have been previously observed in ferromagnetically coupled [Mn6] systems [8][9][10][11][12][13][14][15][16][17][18][19][20]. Upon cooling, the χMT values rise gradually with decreasing temperature for both compounds, reaching maxima of 38.9 cm 3 mol −1 K at 8.0 K for 1 and 35.8 cm 3 •mol −1 K at 17.0 K for 2.…”

Section: Magnetic Propertiescontrasting

confidence: 56%

“…In this context, the combination of phenolic oximes and Mn III has proven to be particularly successful in the preparation of SMMs [7]. Thus, a large family of hexanuclear [Mn III 6 ] complexes based on salicylaldoxime and salicylamidoxime ligands (Scheme 1), along with their derivatives, has been investigated [8][9][10][11][12][13][14][15][16][17][18][19][20]. All the family members display the SMM phenomenon, with remarkably different magnetic behavior, antiferromagnetic or ferromagnetic, that is strongly affected by the structural distortion of the Mn-N-O-Mn torsion angles.…”

Section: Introductionmentioning

confidence: 99%

“…All the family members display the SMM phenomenon, with remarkably different magnetic behavior, antiferromagnetic or ferromagnetic, that is strongly affected by the structural distortion of the Mn-N-O-Mn torsion angles. As a result, it established a semi-quantitative magnetostructural correlation that enables the prediction of the magnetic behavior of new [Mn III 6 ] systems [8][9][10][11][12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

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Ferromagnetic Oxime-Based Manganese(III) Single-Molecule Magnets with Dimethylformamide and Pyridine as Terminal Ligands

Rojas‐Dotti¹,

Moliner²,

Lloret³

et al. 2018

Crystals

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Two new members of the [Mn6] family of single-molecule magnets (SMMs) of formulae [Mn6(μ3-O)2(H2N-sao)6(dmf)8](ClO4)2 (1) and [Mn6(μ3-O)2(H2N-sao)6(py)6(EtOH)2][ReO4]2·4EtOH (2), (dmf = N,N′-dimethylformamide, py = pyridine, H2N-saoH2 = salicylamidoxime) have been synthesized and characterized structurally and magnetically. Both compounds were straightforwardly prepared from the deprotonation of the H2N-saoH2 ligand in the presence of the desired manganese salt and solvent (dmf (1) vs. py (2)). Compound 1 crystallizes in the triclinic system with space group Pī and 2 crystallizes in the monoclinic system with space group P21/n. In the crystal packing of 1 and 2, the (ClO4)− (1) and [ReO4]− (2) anions sit between the cationic [Mn6]2+ units, which are H-bonded to –NH2 groups from the salicylamidoxime ligands. The study of the magnetic properties of 1 and 2 revealed ferromagnetic coupling between the MnIII metal ions and the occurrence of slow relaxation of the magnetization, which is a typical feature of single-molecule magnet behavior. The cationic nature of these [Mn6]2+ species suggests that they could be used as suitable building blocks for preparing new magnetic materials exhibiting additional functionalities.

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Section: Magnetic Propertiescontrasting

confidence: 56%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ferromagnetic Oxime-Based Manganese(III) Single-Molecule Magnets with Dimethylformamide and Pyridine as Terminal Ligands

Rojas‐Dotti¹,

Moliner²,

Lloret³

et al. 2018

Crystals

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“…The ease of synthesis of [Mn 3 ] and [Mn 6 ] and their relative solution stability have enabled them to be utilized as starting materials -building blocks for construction of a host of discrete and infinite supramolecular architectures [14,21,31,37,41,[44][45][46][47][48][49][50][51][52][53][54][55][56][57]. The employment of auxiliary pyridyl-type ligands into the reaction mixtures of [Mn 3/6 ] or in solutions of preformed [Mn 3/6 ] has yielded several discrete (i.e.…”

Section: Introductionmentioning

confidence: 99%

“…polygons and inter-digitated tripodal assemblies enclathrating anions) and polymeric (i.e. 1D and 2D coordination polymers) species featuring unique types of entanglement [37,48], while the use of poly-carboxylate ligands has driven the formation of 1D and 2D coordination polymers (or Metal-Organic Frameworks, MOFs) based on [Mn 6 ] SMMs [21,45,46,52,55,58]. Several Single-Chain Magnets (SCMs; or in some cases chains of non-interacting SMMs) consisting of [Mn 3/6 ] clusters have also been reported [47,50,51,54,57].…”

Section: Introductionmentioning

confidence: 99%

A family of hexanuclear Mn(III) single-molecule magnets

Perivolaris

Fidelli

Inglis

et al. 2014

Journal of Coordination Chemistry

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In an attempt to employ salicylic acid (HOsalH), 2,6-dihydroxy benzoic acid {(HO) 2 PhCO 2 H} and naphthalene-1,8-dicarboxylic acid {1,8-naph(CO 2 H) 2 } in Mn(III) salicylaldoximate chemistry as a means to alter the structural identity of the hexanucluear clusters usually obtained from this reaction system, we have isolated a family of hexanuclear Mn(III) complexes based on salicyladloxime (saoH 2 ) and 2-hydroxy-1-naphthaldehyde oxime (naphthsaoH 2 ). Five hexanuclear clusters, [Mn 6 O 2 (sao) 6 (HOsal) 2 (EtOH) 4 ]·EtOH (1·EtOH), [Mn 6 O 2 (sao) 6 {1,8-naph(CO 2 Me)(CO 2 )} 2 (MeOH) 6 ]·3MeOH (2·3MeOH), [Mn 6 O 2 (naphthsao) 6 {1,8-naph(CO 2 Et)(CO 2 )} 2 (EtOH) 6 ] (3·2MeOH), [Mn 6 O 2 (naphthsao) 6 (MeCO 2 ) 2 (EtOH) 4 ]·2H 2 O (4·2H 2 O) and [Mn 6 O 2 (naphthsao) 6 {(HO) 2 PhCO 2 } 2 (EtOH) 4 ]·4EtOH (5·4EtOH), have been synthesized and characterized by single-crystal x-ray crystallography. The magnetic properties of 3, 4 and 5 are discussed.

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Metal‐Organic Frameworks: Derived from Single Molecule Magnets

Katsenis

Brechin

Papaefstathìou

2014

Encyclopedia of Inorganic and Bioinorganic Chemistry

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In this account, we discuss some metal–organic frameworks (MOFs) that are based on single‐molecule magnets (SMMs). Although the fields of MOFs and SMMs have independently grown rapidly over the last two decades, examples of SMM‐based MOFs are limited, with those possessing a 3D framework numbering just a handful. MOFs are robust porous molecular materials that are predominantly based on polynuclear metal complexes (clusters) owing their properties to their open framework structures. SMMs, on the other hand, are interesting in their own right as they constitute a very special kind of polynuclear metal complex, having the ability to store magnetic information at the molecular level. Although the properties of SMMs are of molecular origin, they can be influenced by crystal‐packing effects, especially at low temperatures. As expected, the combination of these two molecular materials benefits both fields, as SMMs can carry their magnetic properties to a MOF, while their incorporation within a framework may alter/modulate their magnetic properties. Therefore, a new class of molecular materials rises from the combination of the two. Although this new field is very much in its infancy, early examples of SMM‐based MOFs promise much exciting chemistry (and physics) for both academic intuition and an applications‐driven perspective. We hope that this account will inspire scientists to make many more such SMM‐based MOFs and study their properties.

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Assembly of oximate-bridged Mn6 cluster to a one-dimensional chain

Cited by 17 publications

References 33 publications

Ferromagnetic Oxime-Based Manganese(III) Single-Molecule Magnets with Dimethylformamide and Pyridine as Terminal Ligands

Ferromagnetic Oxime-Based Manganese(III) Single-Molecule Magnets with Dimethylformamide and Pyridine as Terminal Ligands

A family of hexanuclear Mn(III) single-molecule magnets

Metal‐Organic Frameworks: Derived from Single Molecule Magnets

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