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Influence of the Size and Shape of Halopyridines Guest Molecules G on the Crystal Structure and Conducting Properties of Molecular (Super)Conductors of (BEDT-TTF)4A+[M3+(C2O4)3]·G Family. MAGNETOCHEMISTRY 2021. [DOI: 10.3390/magnetochemistry7060083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
New organic (super)conductors of the β″-(BEDT-TTF)4A+[M3+(C2O4)3]G family, where BEDT-TTF is bis(ethylenedithio)tetrathiafulvalene; M is Fe; A is the monovalent cation NH4+; G is 2-fluoropyridine (2-FPy) (1); 2,3-difluoropyridine (2,3-DFPy) (2); 2-chloro-3-fluoropyridine (2-Cl-3-FPy) (3); 2,6-dichloropyridine (2,6-DClPy) (4); 2,6-difluoropyridine (2,6-DFPy) (5), have been prepared and their crystal structure and transport properties were studied. All crystals have a layered structure in which the conducting layers of BEDT-TTF radical cations alternate with paramagnetic supramolecular anionic layers {A+[Fe3+(C2O4)3]3−G0}2−. Crystals 1 undergo a structural phase transition from the monoclinic (C2/c) to the triclinic (P1¯) symmetry in the range 100–150 K, whereas crystals 2–5 have a monoclinic symmetry in the entire range of the X-ray experiment (100–300 K). The alternating current (ac) conductivity of salts 1–4 exhibits metallic behavior down to 1.4 K, whereas the salt 5 demonstrates the onset of a superconducting transition at 3.1 K. The structures and conducting properties of 1–5 are compared with those of the known monoclinic phases of the family containing different monohalopyridines as “guest” solvent molecules G.
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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]+. CRYSTALS 2018. [DOI: 10.3390/cryst8020092] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Prokhorova TG, Buravov LI, Yagubskii EB, Zorina LV, Simonov SV, Zverev VN, Shibaeva RP, Canadell E. Effect of Halopyridine Guest Molecules on the Structure and Superconducting Properties of β″‐[Bis(ethylenedithio)tetrathiafulvalene]
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(H
3
O)[Fe(C
2
O
4
)
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]·Guest Crystals. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201501092] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tatiana G. Prokhorova
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, MD, Russia, http://www.icp.ac.ru
| | - Lev I. Buravov
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, MD, Russia, http://www.icp.ac.ru
| | - Eduard B. Yagubskii
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, MD, Russia, http://www.icp.ac.ru
| | - Leokadiya V. Zorina
- Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, MD, Russia
| | - Sergey V. Simonov
- Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, MD, Russia
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, Russia
| | - Vladimir N. Zverev
- Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, MD, Russia
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, Russia
| | - Rimma P. Shibaeva
- Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, MD, Russia
| | - Enric Canadell
- Institut de Ciència de Materials de Barcelona, ICMAB‐CSIC, Campus de la UAB, 08193 Bellaterra, Spain
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Prokhorova TG, Buravov LI, Yagubskii EB, Zorina LV, Simonov SV, Shibaeva RP, Zverev VN. Metallic Bi‐ and Monolayered Radical Cation Salts Based on Bis(ethylenedithio)tetrathiafulvalene (BEDT‐TTF) with the Tris(oxalato)gallate Anion. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201400132] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tatiana G. Prokhorova
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, MD, Russia, http://www.icp.ac.ru
| | - Lev I. Buravov
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, MD, Russia, http://www.icp.ac.ru
| | - Eduard B. Yagubskii
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, MD, Russia, http://www.icp.ac.ru
| | - Leokadiya V. Zorina
- Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, MD, Russia
| | - Sergey V. Simonov
- Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, MD, Russia
| | - Rimma P. Shibaeva
- Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, MD, Russia
| | - Vladimir N. Zverev
- Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, MD, Russia
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