A Novel Hybrid Supramolecular Network Assembled from Perfect π−π Stacking of an Anionic Inorganic Layer and a Cationic Hydronium‐Ion‐Mediated Organic Layer

Luo, Tzuoo Tsair; Liu, Yen Hsiang; Tsai, Hui Lien; Su, Chan Cheng; Ueng, Chuen‐Her; Lu, Kuang Lieh

doi:10.1002/ejic.200400199

Cited by 52 publications

(35 citation statements)

References 56 publications

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“…5.5 to 6.3, 8.2, and 11.0 K (for X = Cl, Br, I, and H, respectively) is observed in the MnCr derivatives ( Figure 13 17 is, therefore, the first structurally (and magnetically) characterized porous chiral layered magnet based on anilato-bridged bimetallic layers. This chirality is also expected to be of interest for studying the magnetochiral effect as well as the multiferroic properties, as has already been done in the oxalato family [94,107,121,126]. Moreover, the bigger size of the anilato compared to the oxalato ligand leads to hexagonal cavities that are twice larger than those of the oxalato-based layers.…”

Section: Molecular Ferrimagnetsmentioning

confidence: 90%

“…17 is, therefore, the first structurally (and magnetically) characterized porous chiral layered magnet based on anilato-bridged bimetallic layers. This chirality is also expected to be of interest for studying the magnetochiral effect as well as the multiferroic properties, as has already been done in the oxalato family [94,107,121,126]. All components of this series show ferrimagnetic long-range order as shown by susceptibility measurements, but the most interesting feature of this family is the tunability of the critical temperature depending on the nature of the X substituents: infact, as an example, an increase in Tc from ca.…”

Section: Molecular Ferrimagnetsmentioning

confidence: 91%

“…One of the most interesting anilato-based structures obtained so far are the H 2 An 2− -and Cl 2 An 2− -based honeycomb layers [47,[106][107][108][109][110]. In these 2D compounds the structure is similar to that of the oxalate honeycomb layers, but all reported systems to date are homometallic (i.e., they contain two M II or two M III ions of the same nature type).…”

Section: Introductionmentioning

confidence: 99%

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Recent Advances on Anilato-Based Molecular Materials with Magnetic and/or Conducting Properties

et al. 2017

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Abstract:The aim of the present work is to highlight the unique role of anilato-ligands, derivatives of the 2,5-dioxy-1,4-benzoquinone framework containing various substituents at the 3 and 6 positions (X = H, Cl, Br, I, CN, etc.), in engineering a great variety of new materials showing peculiar magnetic and/or conducting properties. Homoleptic anilato-based molecular building blocks and related materials will be discussed. Selected examples of such materials, spanning from graphene-related layered magnetic materials to intercalated supramolecular arrays, ferromagnetic 3D monometallic lanthanoid assemblies, multifunctional materials with coexistence of magnetic/conducting properties and/or chirality and multifunctional metal-organic frameworks (MOFs) will be discussed herein. The influence of (i) the electronic nature of the X substituents and (ii) intermolecular interactions i.e., H-Bonding, Halogen-Bonding, π-π stacking and dipolar interactions, on the physical properties of the resulting material will be also highlighted. A combined structural/physical properties analysis will be reported to provide an effective tool for designing novel anilate-based supramolecular architectures showing improved and/or novel physical properties. The role of the molecular approach in this context is pointed out as well, since it enables the chemical design of the molecular building blocks being suitable for self-assembly to form supramolecular structures with the desired interactions and physical properties.Keywords: benzoquinone derivatives; molecular magnetism; multifunctional molecular materials; spin-crossover materials; metal-organic frameworks General IntroductionThe aim of the present work is to highlight the key role of anilates in engineering new materials with new or improved magnetic and/or conducting properties and new technological applications. Only homoleptic anilato-based molecular building blocks and related materials will be discussed. Selected examples of para-/ferri-/ferro-magnetic, spin-crossover and conducting/magnetic multifunctional materials and MOFs based on transition metal complexes of anilato-derivatives, on varying the substituents at the 3,6 positions of the anilato moiety, will be discussed herein, whose structural features or physical properties are peculiar and/or unusual with respect to analogous compounds reported in the literature up to now. Their most appealing technological applications will be also reported.

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Section: Molecular Ferrimagnetsmentioning

confidence: 90%

Section: Molecular Ferrimagnetsmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

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Recent Advances on Anilato-Based Molecular Materials with Magnetic and/or Conducting Properties

et al. 2017

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“…42,44,48 The heterometallic nature of the 2D lattice with two different spin ground states (except in the iron−manganese derivative) leads to the observed ferrimagnetic long-range ordering.…”

Section: ■ Introductionmentioning

confidence: 96%

“…The layers formed with two M II ions contain a 2− charge per formula, [M II 2 L 3 ] 2− (L 2− = dhbq 2− or X 2 An 2− ), and, accordingly, contain two monocations to balance the charge. 44 47 An additional interest of the dhbq 2− and X 2 An 2− ligands is related to the formation of a 3D structure with a (10,3)-a topology, similar to the one observed with oxalate, 49 which results when all of the ML 3 units present the same chirality (in contrast with the 2D honeycomb layer, which requires alternating Λ-ML 3 and Δ-ML 3 units 3 ]. 50 Albeit, in these compounds, the presence of a double-interpenetrating (10,3)-a lattice with opposite chiralities s a nonchiral structure.…”

Section: ■ Introductionmentioning

confidence: 97%

A Family of Layered Chiral Porous Magnets Exhibiting Tunable Ordering Temperatures

et al. 2013

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A simple change of the substituents in the bridging ligand allows tuning of the ordering temperatures, Tc, in the new family of layered chiral magnets A[M(II)M(III)(X2An)3]·G (A = [(H3O)(phz)3](+) (phz = phenazine) or NBu4(+); X2An(2-) = C6O4X2(2-) = 2,5-dihydroxy-1,4-benzoquinone derivative dianion, with M(III) = Cr, Fe; M(II) = Mn, Fe, Co, etc.; X = Cl, Br, I, H; G = water or acetone). Depending on the nature of X, an increase in Tc from ca. 5.5 to 6.3, 8.2, and 11.0 K (for X = Cl, Br, I, and H, respectively) is observed in the MnCr derivative. Furthermore, the presence of the chiral cation [(H3O)(phz)3](+), formed by the association of a hydronium ion with three phenazine molecules, leads to a chiral structure where the Δ-[(H3O)(phz)3](+) cations are always located below the Δ-[Cr(Cl2An)3](3-) centers, leading to a very unusual localization of both kinds of metals (Cr and Mn) and to an eclipsed disposition of the layers. This eclipsed disposition generates hexagonal channels with a void volume of ca. 20% where guest molecules (acetone and water) can be reversibly absorbed. Here we present the structural and magnetic characterization of this new family of anilato-based molecular magnets.

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Self‐Assembled Arrays of Single‐Walled Metal–Organic Nanotubes

Luo¹,

Wu²,

Jao³

et al. 2009

Angewandte Chemie

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Figure 3. a) Ball-and-stick representation of the MONT-A1 with helical strands individually colored. b) A curling-up dragon column. c) Topology relationship between a (4,4)-layer and the nanotube (colors are the same as in (a)). d) Packing array of the nanotubes (nanotubes individually colored). Figure 4. a) Coordination environment of the {KO 6 Cd 3 } cluster. b) The six-connected trigonal prismatic building units of the {KO 6 Cd 3 } cluster. c) Top view of the MAS-22 framework. d) The 4 9 .6 6 -acs net.

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A Novel Hybrid Supramolecular Network Assembled from Perfect π−π Stacking of an Anionic Inorganic Layer and a Cationic Hydronium‐Ion‐Mediated Organic Layer

Cited by 52 publications

References 56 publications

Recent Advances on Anilato-Based Molecular Materials with Magnetic and/or Conducting Properties

Recent Advances on Anilato-Based Molecular Materials with Magnetic and/or Conducting Properties

A Family of Layered Chiral Porous Magnets Exhibiting Tunable Ordering Temperatures

Self‐Assembled Arrays of Single‐Walled Metal–Organic Nanotubes

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