Magnetic molecular metals based on the organic donor molecule BET (BET = Bis(ethylenethio)tetrathiafulvalene): The series BET2[MCI4] (M3⊕ = Ga, Fe)

Coronado, Eugenio; Falvello, L.R.; Galán‐Mascarós, José Ramón; Giménez‐Saiz, Carlos; Gómez‐García, Carlos J.; Lauhkin, V.N.; Pérez‐Benítez, Aarón; Rovira, Concepció; Veciana, Jaume

doi:10.1002/adma.19970091213

Cited by 66 publications

(30 citation statements)

References 12 publications

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“…Most of the successful attempts to insert magnetic complexes as charge-compensating anions into BEDT-TTF charge-transfer salts have focused on simple complexes of the type [MX 4 ] nϪ (M Fe III , Cu II ; X Ϫ Cl, Br) or [M(ox) 3 ] 3Ϫ (M III Fe, Cr). By using these mononuclear complexes, several paramagnetic conductors 21,22 and two series of compounds that exhibit a coexistence of superconductivity and paramagnetism 23,24 have been reported; the latter property has until now been thought to be unattainable. More complex structures are obtained by insertion of large magnetic clusters, or even polymeric magnetic complexes, into the charge-transfer salts.…”

Section: Magnetic Conductorsmentioning

confidence: 98%

Hybrid Organic/Inorganic Magnets

Awaga¹,

Coronado²,

Drillon³

2000

MRS Bull.

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The construction of more and more complex systems starting from elemental molecular units used as building blocks is propelling several disciplines of burgeoning interest, such as supramolecular chemistry, molecular electronics, and molecular magnetism. In the particular context of magnetic molecular materials, an attractive possibility for adding complexity to the material is to use a hybrid approach in which an organic component is combined with an inorganic one. Both purely organic and purely inorganic approaches (see the articles in this issue by Veciana and Iwamura and by Miller, respectively) have been used extensively to obtain molecule-based magnets. The combination of these two kinds of magnetic molecular components has also been successfully explored to design polymeric magnets of different dimensionalities (the metal-radical approach). In this last case, both components play a magnetic role. A step forward in achieving multifunctionality is to design hybrid molecular materials formed by two independent molecular networks, such as anion/cation salts or host/guest solids, whereby each network furnishes distinct physical properties to the solid. This novel class of materials is interesting because it can give rise to the development of materials in which two properties in the same crystal lattice coexist, or materials that exhibit improved properties over those of the individual networks, or to new, unexpected properties due to the mutual interactions between them. One can imagine, for example, the combination of an extended inorganic magnetic layer opening the pathway to cooperative magnetism, with an organic or organometallic molecule that acts as a structural component controlling the interlayer separation. If the molecule inserted between the layers has unpaired electrons, a hybrid compound is produced that combines cooperative magnetism and paramagnetism. Other suitable combinations, such as electronic conductivity and magnetism, or nonlinear optics and magnetism, can also be achieved by wisely choosing the constituent molecules. In this article, we report some relevant examples that illustrate the potential of this hybrid approach in the context of molecule-based magnetic materials.

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Section: Magnetic Conductorsmentioning

confidence: 98%

Hybrid Organic/Inorganic Magnets

Awaga¹,

Coronado²,

Drillon³

2000

MRS Bull.

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“…5 One of them, BET-TTF (1), is an excellent donor which forms highly conducting cation radical salts with both diamagnetic [6][7][8][9] and paramagnetic counterions. 10 However, the previously reported syntheses of the BET-TTF donor 5,11 produce only small amounts (~130 milligrams) of pure donor in each synthesis due to the poor yields of the steps involved and to the difficult purification of the intermediate compounds. Moreover, it takes more than one month to perform the complete synthesis.…”

mentioning

confidence: 99%

Improved Synthesis of the π-Electron Donor Bis(ethylenethio)tetrathiafulvalene (BET-TTF)

Pérez‐Benítez¹,

Tarrés²,

Ribera³

et al. 1999

Synthesis

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“…2). Following this strategy paramagnetic metals [9,10] and even paramagnetic superconductors [11,12] have been obtained. More complex molecular anions with higher charges and sizes have also been used, as for example metaloxide clusters (polyoxometalates) having paramagnetic ions or magnetic clusters in their structures (Fig.…”

Section: Magnetic Molecular Conductorsmentioning

confidence: 99%

Magnetic molecular nanostructures: Design of magnetic molecular materials as monolayers, multilayers and thin films

Coronado

Martí‐Gastaldo

Tatay

2007

Applied Surface Science

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Magnetic molecular metals based on the organic donor molecule BET (BET = Bis(ethylenethio)tetrathiafulvalene): The series BET₂[MCI₄] (M^3⊕ = Ga, Fe)

Abstract: Communications ADVANCED MATERIALStered and detected by a photomultiplier. The SHG intensity was read on an ultrafast Tektronix 7834 oscilloscope. Samples were microcrystalline powders squeezed between two glass plates. The SHG signal of a powdered urea sample was measured as reference.

Cited by 66 publications

References 12 publications

Hybrid Organic/Inorganic Magnets

Hybrid Organic/Inorganic Magnets

Improved Synthesis of the π-Electron Donor Bis(ethylenethio)tetrathiafulvalene (BET-TTF)

Magnetic molecular nanostructures: Design of magnetic molecular materials as monolayers, multilayers and thin films

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