β‘ ‘-(BEDT-TTF)4[(H3O)Cr(C2O4)3]CH2Cl2:  Effect of Included Solvent on the Structure and Properties of a Conducting Molecular Charge-Transfer Salt

Rashid, Samina; Turner, Scott S.; Pevelen, Delphine D. Le; Day, Peter; Light, Mark E.; Hursthouse, M. B.; Firth, Steven; Clark, R. J. H.

doi:10.1021/ic010484f

Cited by 45 publications

(13 citation statements)

References 8 publications

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“…In this work, we have shown that the use of 2-ClPy as a guest solvents and [Ga(ox) 3 ] 3− as a counterion leads to the formation of both β"-(BEDT-TTF) 4 3 ]·2-ClPy (3) and α"-(BEDT-TTF) 5 [Ga(ox) 3 ]·3.4·H 2 O·0.6 EtOH (5) (sp. group Pbca) crystals in the same synthesis.…”

Section: Synthesismentioning

confidence: 99%

Specific Structural Disorder in an Anion Layer and Its Influence on Conducting Properties of New Crystals of the (BEDT-TTF)4A+[M3+(ox)3]G Family, Where G Is 2-Halopyridine; M Is Cr, Ga; A+ Is [K0.8(H3O)0.2]+

et al. 2018

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New crystals (1-4) of organic conductors based on the radical cation salts of the bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF) with paramagnetic and diamagnetic tris(oxalato)metallate anions {A + [M 3+ (ox) 3 ] 3− G} 2− , where M is Cr, Ga; G is 2-chloropyridine, 2-bromopyridine; and A + is [K 0.8 (H 3 O) 0.2 ] + have been prepared and their crystal structure and transport properties were studied. All crystals belong to the monoclinic group of the (BEDT-TTF) 4 A + [M 3+ (ox) 3 ]G family with β"-packing type of conducting BEDT-TTF layers. In contrast to the known superconducting crystals with M 3+ = Fe 3+ and G = 2-chloro-or 2-bromopyridine (T c = 4.0-4.3 K), crystals with Cr 3+ and Ga 3+ ions exhibit metallic properties down to 0.5 K without superconducting transition. Upon cooling these crystals, the incommensurate superstructure appears, which has never been observed before in the numerous β"-salts of the family. In addition, orthorhombic (sp. group Pbca) semiconducting crystals α"-(BEDT-TTF) 5 [Ga(ox) 3 ]·3.4·H 2 O·0.6 EtOH (5) were obtained. It is a new compound in the family of BEDT-TTF crystals with tris(oxalato)metallate anions.

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Section: Synthesismentioning

confidence: 99%

Specific Structural Disorder in an Anion Layer and Its Influence on Conducting Properties of New Crystals of the (BEDT-TTF)4A+[M3+(ox)3]G Family, Where G Is 2-Halopyridine; M Is Cr, Ga; A+ Is [K0.8(H3O)0.2]+

et al. 2018

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“…Crystals 1 and 2 incorporate 2-halopyridine solvents, whereas 3 and 4 contain 3-halo-substituted ones. Here, a detailed comparison of the room-and low-temperature crystal structures is made for crystals 2 and 4 with 2-C 5 The structural transition in 2 occurs at 190 K. Below this temperature, additional diffraction reflections reveal the disappearance of the systematic absences of the monoclinic C2/c lattice and the reduction of symmetry to the triclinic P1. A similar phase transition was described in detail before for several crystals of the family with monohalobenzene solvents (PhF, PhCl, PhBr or their mixtures with PhCN, in which the amount of PhCN is less than 40 %).…”

Section: Crystal Structuresmentioning

confidence: 99%

Effect of Halopyridine Guest Molecules on the Structure and Superconducting Properties of β″‐[Bis(ethylenedithio)tetrathiafulvalene]₄(H₃O)[Fe(C₂O₄)₃]·Guest Crystals

et al. 2015

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Spiegelbildliche Hohlräume: Der Gallogermanat‐Zeolith |(Ni(C3H10N2)3)36Ni4.7|[Ga81.4Ge206.6O576] mit dreidimensional kreuzenden Elferring‐Kanälen (links) hat die niedrigste Gerüstdichte unter allen bekannten Oxid‐Zeolithen. Der Festkörper enthält Paare chiraler [312.43.62.116]‐Hohlräume (rechts), deren Bildung durch in situ erzeugte chirale [Ni(1,2‐PDA)3]2+‐Kationen induziert wird. 1,2‐PDA=1,2‐Diaminopropan.

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“…The family of isomorphic β '' phases with paramagnetic (Fe III , Cr III ) and diamagnetic (Ga III ) ions and various molecular solvents was then grown. These solvents were benzonitrile [4][5][6][7], nitrobenzene (NB) [8][9][10][11], pyridine (PYR) [10][11][12][13], dichloromethane (DCM) [13,14], dimethylformamide (DMF) [15][16][17], chlorobenzene (CB) [13,18], and bromobenzene (BB) [18,19]. The conducting properties of these compounds were found to be diverse and to vary from metallic to semiconducting properties despite the fact that they have a similar structure.…”

Section: A I [M Iii (C 2 O 4 ) 3 ] · G (A I =mentioning

confidence: 99%

10.1007/s11447-008-2013-0

2010

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The β ''-(BEDT-TTF) 4 A I [M III (C 2 O 4 ) 3 ] · G (A I = , H 3 O + , K + , Rb + ; M III = Fe, Cr; G = "guest" solvent molecule) family of layered molecular conductors with magnetic metal oxalate anions exhibits a pronounced dependence of the conducting properties on the type of neutral solvent molecules introduced into the complex anion layer. A new organic dichlorobenzene (C 6 H 4 Cl 2 )-containing conductor of this family, namely, β ''-(BEDT-TTF) 4 H 3 O[Fe(C 2 O 4 ) 3 ] · C 6 H 4 Cl 2 , is synthesized. The structure of the synthesized single crystals studied by X-ray diffraction is characterized by the following parameters: a = 10.421(1) Å, b = 19.991(2) Å, c = 35.441(3) Å, β = 92.87(1) ° , V = 7374(1) Å 3 , space group C 2/ c , and Z = 4. In the temperature range 0.5-300 K, the conductivity of the crystals is metallic without changing into a superconducting state. The magnetotransport properties of the crystals are examined in magnetic fields up to 17 T at T = 0.5 K. In fields higher than 10 T, Shubnikov-de Haas oscillations are detected, and the Fourier spectrum of these oscillations contains two frequencies with maximum amplitudes of about 80 and 375 T. The experimental results are compared with the related data obtained for other phases of this family. The possible structural mechanisms of the effect of a guest solvent molecule on the transport properties of the β ''-(BEDT-TTF) 4 A I [M III (C 2 O 4 ) 3 ] · G crystals are analyzed.

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β‘ ‘-(BEDT-TTF)₄[(H₃O)Cr(C₂O₄)₃]CH₂Cl₂: Effect of Included Solvent on the Structure and Properties of a Conducting Molecular Charge-Transfer Salt

Cited by 45 publications

References 8 publications

Specific Structural Disorder in an Anion Layer and Its Influence on Conducting Properties of New Crystals of the (BEDT-TTF)4A+[M3+(ox)3]G Family, Where G Is 2-Halopyridine; M Is Cr, Ga; A+ Is [K0.8(H3O)0.2]+

Specific Structural Disorder in an Anion Layer and Its Influence on Conducting Properties of New Crystals of the (BEDT-TTF)4A+[M3+(ox)3]G Family, Where G Is 2-Halopyridine; M Is Cr, Ga; A+ Is [K0.8(H3O)0.2]+

Effect of Halopyridine Guest Molecules on the Structure and Superconducting Properties of β″‐[Bis(ethylenedithio)tetrathiafulvalene]₄(H₃O)[Fe(C₂O₄)₃]·Guest Crystals

10.1007/s11447-008-2013-0

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β‘ ‘-(BEDT-TTF)4[(H3O)Cr(C2O4)3]CH2Cl2: Effect of Included Solvent on the Structure and Properties of a Conducting Molecular Charge-Transfer Salt

Cited by 45 publications

References 8 publications

Specific Structural Disorder in an Anion Layer and Its Influence on Conducting Properties of New Crystals of the (BEDT-TTF)4A+[M3+(ox)3]G Family, Where G Is 2-Halopyridine; M Is Cr, Ga; A+ Is [K0.8(H3O)0.2]+

Specific Structural Disorder in an Anion Layer and Its Influence on Conducting Properties of New Crystals of the (BEDT-TTF)4A+[M3+(ox)3]G Family, Where G Is 2-Halopyridine; M Is Cr, Ga; A+ Is [K0.8(H3O)0.2]+

Effect of Halopyridine Guest Molecules on the Structure and Superconducting Prop­erties of β″‐[Bis(ethylenedithio)tetra­thiafulvalene]4(H3O)[Fe(C2O4)3]·Guest Crystals

10.1007/s11447-008-2013-0

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β‘ ‘-(BEDT-TTF)₄[(H₃O)Cr(C₂O₄)₃]CH₂Cl₂: Effect of Included Solvent on the Structure and Properties of a Conducting Molecular Charge-Transfer Salt

Effect of Halopyridine Guest Molecules on the Structure and Superconducting Properties of β″‐[Bis(ethylenedithio)tetrathiafulvalene]₄(H₃O)[Fe(C₂O₄)₃]·Guest Crystals