Synthesis and studies of new organic conductors based on ET and EDT-TTF with the [ZnBr4]2− anions

Zhilyaeva, E. I.; Dzyuba, K. A.; Flakina, A. M.; Шилов, Г. В.; Куликов, А. В.; Lyubovskiǐ, R. B.; Lyubovskaya, Rimma N.

doi:10.1007/s11172-013-0237-4

Cited by 7 publications

(6 citation statements)

References 6 publications

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“…In addition to the M–I transition, a phase transition from one metallic state to another was observed in (BEDT‐TTF) 4 MBr 4 (C 6 H 5 X) at around 260–220 K. Longitudinal resistivity increases with decreasing temperature in an extended temperature range (ca. 15–20 K) 36,37,39. A similar phase transition is observed for (BETS) 4 MBr 4 (C 6 H 5 X) at around 6 K 33,42…”

Section: Conducting Properties Of (D)4mbr4(c6h6–nxn)supporting

confidence: 74%

“…For (BEDT‐TTF) 4 MBr 4 (C 6 H 5 X) (M = Hg, Cd, Zn), which contain monosubstituted halobenzene (Table 1), longitudinal resistivity decreases as the temperature decreases down to around 70, 80, or 185 K, respectively, depending on the anion and solvent (C 6 H 5 Cl, C 6 H 5 Br, or C 6 H 5 F). Below these temperatures, a metal–insulator transition is observed 36,37. The behavior of the interlayer resistivity ( R ⟂ ) of the θ‐(BEDT‐TTF) 4 MBr 4 (PhX) salts is sample‐dependent (e.g., see Figure 3, c,d).…”

Section: Conducting Properties Of (D)4mbr4(c6h6–nxn)mentioning

confidence: 99%

“…The interlayer resistivity of crystals of (BEDT‐TTF) 4 MBr 4 (C 6 H 4 X 2 ) (M = Cd, Hg, Co) exhibits nonmetallic character down to liquid helium temperature (Figure 3, a). An exception is (BEDT‐TTF) 4 ZnBr 4 (C 6 H 4 Cl 2 ), which shows metallic behavior of resistivity below 30 K 37…”

Section: Conducting Properties Of (D)4mbr4(c6h6–nxn)mentioning

confidence: 99%

“…Smaller anions and solvent molecules provide higher T p (Table 3). The crystal structures of the triclinic phases of (BEDT‐TTF) 4 CoBr 4 (C 6 H 4 Cl 2 )38 and (BEDT‐TTF) 4 ZnBr 4 (C 6 H 4 Cl 2 )37 were determined. The structures of the salts are fully ordered.…”

Section: Crystal Structures Of (D)4mbr4(c6h6–nxn)mentioning

confidence: 99%

“…In cation layer A, the radical cations of stacks a2 are parallel, whereas in stacks a1 the angle between the planes of neighboring BEDT‐TTF molecules is 8.8° 37,38. Therefore there are two dihedral angles ( θ ) between the planes of BEDT‐TTF of stacks a1 and a2 with respect to the two different molecules in stack a1 (Table 3).…”

Section: Crystal Structures Of (D)4mbr4(c6h6–nxn)mentioning

confidence: 99%

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Dual‐Layered Quasi‐Two‐Dimensional Organic Conductors with Presumable Incoherent Electron Transport

Lyubovskaya¹,

Zhilyaeva²,

Шилов³

et al. 2014

Eur J Inorg Chem

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We have prepared a series of BEDT‐TTF or BETS‐based radical‐cation salts (D)4MBr4(C6H6–nXn) with tetrahedral anions [MIIBr4]2– (D = BETS, BEDT‐TTF; X = F, Cl, Br; n = 1, 2). The salts (D)4MBr4(C6H6–nXn) are characterized by the different structures of neighboring conducting layers, structural phase transitions, and different types of conductivity, namely, metallic and semiconducting, along and across the conducting layers, respectively. The Fermi surface of the metallic layer of (D)4MBr4(C6H6–nXn) with alternating crystallographically different conducting layers (dual‐layered salts) provides a roadmap for interpreting the transport properties of quasi‐two‐dimensional organic conductors. This review reports on the structures of these compounds, the effect of MBr4 anions and solvent on the occurrence of phase transitions, different Fermi surface topologies in connection with the different structures of neighboring conducting layers, and the possibility of the incoherent transport of charge carriers in such systems.

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