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Scott S. Turner - One of the best experts on this subject based on the ideXlab platform.
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a new ni dmit 2 based organic magnetic Charge Transfer Salt m po conh n methylpyridinium ni dmit 2 ch3cn
Inorganica Chimica Acta, 2018Co-Authors: Hiroki Akutsu, Scott S. Turner, Junichi Yamada, Shinichi Nakatsuji, Soichi Ito, Tomofumi Kadoya, Yasuhiro NakazawaAbstract:A new Ni(dmit)2-based organic magnetic Charge-Transfer (CT) Salt, (m-PO-CONH-N-methylpyridinium)[Ni(dmit)2]·CH3CN, where PO = 2,2,5,5-Tetramethyl-3-pyrrolin-1-oxyl free radical and dmit = 2-Thioxo-1,3-dithiole-4,5-dithiolate, was obtained, the crystal structure and magnetic properties of which are reported. Magnetic susceptibility of the CT Salt obeys a combination of 1D ferromagnetic (1DF) Heisenberg (J1DF = +0.26 K) and Singlet-Triplet (ST) models (JST = -51.2 K) with mean field (MF) approximation (JMF = -6.7 K), suggesting that spins on the PO radicals form 1D ferromagnetic chains and spins on the Ni(dmit)2 monoanions forms spin dimers at low temperature, the latter of which was also confirmed by band calculations.
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structures and properties of a bedt ttf based organic Charge Transfer Salt and the zwitterion of ferrocenesulfonate
Dalton Transactions, 2013Co-Authors: Hiroki Akutsu, Junichi Yamada, Shinichi Nakatsuji, Scott S. TurnerAbstract:The structure and properties of a new semiconducting BEDT-TTF-based Charge-Transfer Salt containing the ferrocenesulfonate (Fc-SO3(-)) anion, α-(BEDT-TTF)2Fc-SO3·2.5H2O, are described. The structure and magnetic properties of a zwitterion of ferrocenesulfonate, Fc(+)-SO3(-), are also reported.
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a new ferrocene containing Charge Transfer Salt ttf 2 fe c5h4 ch ch3 nhcoch2so3 2
Inorganic Chemistry Communications, 2012Co-Authors: Naoya Kanbayashi, Junichi Yamada, Hiroki Akutsu, Shinichi Nakatsuji, Scott S. TurnerAbstract:Abstract A novel ferrocene-containing dianion, Fe(C5H4–CH(CH3)NHCOCH2SO3–)2 (1), has been prepared. The oxidation potential of the PPh4 Salt is + 0.35 V (vs. SCE in PhCN), indicating that it is a stronger donor than TTF (tetrathiafulvalene) by + 0.03 V. The dianion provided a TTF Salt, the structure and physical properties of which are reported.
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a new bedt ttf based organic Charge Transfer Salt with a new anionic strong acceptor n n disulfo 1 4 benzoquinonediimine
Crystals, 2012Co-Authors: Hiroki Akutsu, Junichi Yamada, Shinichi Nakatsuji, Scott S. TurnerAbstract:A novel organic dianion, N,N'-Disulfo-1,4-benzoquinonediimine (1) has been prepared, which is a strong electron acceptor. The reduction potential of the PPh4 Salt indicates that 1 is a stronger acceptor than DDQ (2,3-dichloro-5,6-dicyano-1,4-benzoquinone). The dianionic acceptor provided a BEDT-TTF Salt, (BEDT-TTF)41·3H2O, the structures and physical properties of which are reported.
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anion polarity induced dual oxidation states in a dual layered purely organic paramagnetic Charge Transfer Salt ttf 3 po con ch3 c2h4so3 2 where po 2 2 5 5 tetramethyl 3 pyrrolin 1 oxyl free radical
CrystEngComm, 2011Co-Authors: Hiroki Akutsu, Junichi Yamada, Shinichi Nakatsuji, Atsushi Kawamura, Scott S. TurnerAbstract:The purely organic paramagnetic Charge-Transfer Salt (TTF)3(PO-CON(CH3)C2H4SO3)2 was prepared. The anisotropic anion forms a head-to-head arrangement in the anionic layer, giving dual donor layers with different oxidation states. SQUID magnetometry indicates that spins are localized not only on the free radical (PO) but also on both TTF layers.
Daoben Zhu - One of the best experts on this subject based on the ideXlab platform.
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synthesis crystal structure and characterization of the Charge Transfer Salt bedt ttf fe c2o4 cl2 ch2cl2 bedt ttf bis ethylenedithio tetrathiafulvalene
European Journal of Inorganic Chemistry, 2014Co-Authors: Bin Zhang, Yan Zhang, Yanjun Guo, Zengqiang Gao, Guangcai Chang, Dongwei Wang, Daoben ZhuAbstract:The synthesis, crystal structure, Raman spectra, conductivity, and magnetism of the title Charge-Transfer Salt (1) composed of BEDT-TTF [bis(ethylenedithio)tetrathiafulvalene], one-dimensional [Fe(C2O4)Cl2–]n, and the solvent CH2Cl2, are described and interpreted. Electrochemical oxidation of neutral BEDT-TTF in the presence of [(C2H5)3NH][Fe(C2O4)Cl2] in a CH2Cl2/CH3OH solution yields crystals of 1, which crystallizes in triclinic form. In 1, two donor molecules stack in a face-to-face manner as a BEDT-TTF dimer. The BEDT-TTF dimers form a (4,4) grid in the ab plane. The cavity of the (4,4) grid is occupied by two CH2Cl2 molecules. The donor layers are separated by sheets of [Fe(C2O4)Cl2–]n anions with a zigzag chain along the a axis. There are S···S interactions between the donors, and S···Cl interactions between the donor and the anion. On the χ vs. T plot, a broad maximum is observed around 45 K, showing the existence of antiferromagnetic interactions between the metal atoms in the low-dimensional system. The formal Charge of the donor molecules is assigned 1.0+ based on the bond lengths of the TTF core and on the Raman spectra. The material is a semiconductor with σrt = 1.8 × 10–5 S/cm.
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the new semiconducting magnetic Charge Transfer Salt bedt ttf 4 h2o fe c2o4 3 c6h5no2 crystal structure and physical properties
Molecular Crystals and Liquid Crystals, 1998Co-Authors: Shuqing Sun, Qichun Zhang, Daoben ZhuAbstract:Abstract The structure, resistivity and ESR of a new molecular Charge Transfer Salt β-(Salt (BEDT-TTF)4 • H2O • Fe(C2O4)3 • C6H5NO2 (BEDT-TTF = bis (ethylenedithio)tetrathiofulvalene) are studied. The structure of the Salt consists of successive layers of BEDT-TTF which are packed according to β-type and layers of approximately hexagonal geometry containing alternating H2O and Fe(C2O4)3 3−, with C6H5NO2 lying within the hexagonal cavity. Its main crystallographic parameters are found to be: M = 1999.6(1), a = 10.31(8), b = 20.14(8), c = 35.34(4) A, β = 92.21(9)° V = 7342.0(5) A3, space group C2/c; Z = 4. The conductivity of this Salt at room temperature is l0 Scm−1 and shows semiconducting behaviour from 20 to 300K. The ESR line width is found to be 38.1 (300 K), which is substantially wider than a typical line width for BEDT-TTF based radical cation Salts of the β-type, indicating a two-dimensional character. The comparison of crystal structure and properties of the title compound with other Salts of thi...
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the new semiconducting magnetic Charge Transfer Salt bedt ttf 4 h2o fe c2o4 3 c6h5no2 crystal structure and physical properties
Synthetic Metals, 1998Co-Authors: Shuqing Sun, Qichun Zhang, Daoben ZhuAbstract:Abstract The structure, resistivity and ESR of a new molecular Charge Transfer Salt β-(BEDT-TTF)4·H2O·Fe(C2O4)3·C6H5NO2 (BEDT-TTF = bis(ethylenedithio)tetrathiofulvalene) are studied. The structure of the Salt consists of successive layers of BEDT-TTF which are packed according to β-type and layers of approximately hexagonal geometry containing alternating H2O and Fe(C2O4)33−, with C6H5NO2 lying within the hexagonal cavity. Its main crystallographic parameters are found to be: M = 1999.6(1), a = 10.31(8), b = 20.14(8), c = 35.34(4) A , β = 92.21(9)°; V = 7342.0(5) A 3 , space group C2 c ; Z = 4 . The conductivity of this Salt at room temperature is 10 S cm−1 and it shows semiconducting behaviour from 20 to 300 K. The ESR linewidth is found to be 38.1 (300 K), which is substantially wider than a typical linewidth for BEDT-TTF based radical cation Salts of the β-type, indicating a two-dimensional character. The comparison of crystal structure and properties of the title compound with other Salts of this family (BEDT-TTF)4·A·Fe(C2O4)3·C6H5NO2, where A = H2O, K+, NH4+, is also carried out.
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crystal structure of a new conductive Charge Transfer Salt ttm ttf cu2brx x 4 72 containing polymeric counter anions
Synthetic Metals, 1997Co-Authors: Shenggao Liu, Daoben ZhuAbstract:Abstract The structure of a new conductive Charge Transfer Salt was determined by X-ray diffraction method at room temperature. The crystal belongs to monoclinic, space group C 2/c with crystallographic parameters: a=27.817(9), b=4.0295(6), c=22.814(7) A, β=117.98(4)°, V=2258.3(11) A 3 , Z=4, d c =2.626 gcm −3 , λ(MoKα)=0.71069 A, μ=10.86 mm −1 , F(000)=1291.84 and final R=0.076, R w =0.076 for 1652 observed reflections. The structure consists of isolated 3,4;3′,4′-tetra(methylthio)-2,5;2′,5′-tetrathiafulvalene (TTM-TTF) of the organic donors and binuclear non-integer polybromide complex anions. Both the donors and the anions occupy symmetry centers in the cell and the TTM-TTF donors are stacked to form columns along the b axis with the shortest intra- and inter-columnar S···S contacts of 3.214(10) and 3.417(12) A, respectively. 1,1′-di-μ-bromo-2,2′-dibromodicuprate moieties of the binuclear polybromide anions are stacked to form polymeric columns along b, in which the copper atoms are five-coordinate.
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synthesis electrical properties and crystal structure of a new et based Charge Transfer Salt containing binuclear polychloride complex anion
Synthetic Metals, 1996Co-Authors: Shenggao Liu, Yunqi Liu, He Tian, Daoben ZhuAbstract:Abstract A new Charge-Transfer Salt containing hexachlorodicuprate (II) binuclear polychloride complex counter anions, ET2Cu2Cl6 (ET = BEDT-TTF = bis (ethylenedithio)-tetrathiafulvalene), was prepared. The room-temperature d.c. conductivity and relative resistance temperature dependence of the Salt from room temperature down to 77 K along the longest crystal growth direction are reported. The crystal structure is determined by the X-ray diffraction method at room temperature. It belongs to the triclinicpl space group with crystallographic parameters of a = 11.379(4), b= 16.353(4), c = 9.054(4) A, α = 90.33(3), β= 100.69(3), γ= 100.06(2) °, V= 1628(1) A3, Z = 2, dc = 2.261 g cm−3, λ (Mo Kα) = 0.710 69 A, μ = 28.45 cm−1, F000 = 1104.00 and final R = 0.043, Rw = 0.057 for 2331 observed reflections. The structure consists of isolated ET stacks and the binuclear polychloride complex dianion (Cu2Cl6)2− sheets. In the donor stack, significantly short S···S contacts are observed.
Michael B. Hursthouse - One of the best experts on this subject based on the ideXlab platform.
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The first molecular Charge Transfer Salt containing layers of an alkali metal
Journal of Low Temperature Physics, 2006Co-Authors: Lee Martin, Ann L. Bingham, Peter N Horton, Michael B. HursthouseAbstract:We report the first molecular Charge Transfer Salt containing layers of Na+ within its lattice. From the crystal structure and from C=C and C-S bond lengths and Raman stretching frequencies we obtain a formula a′"-(BEDT-TTF)9[Fe(C2O4)3]8Na18(H2O)24. The structure consists of alternating layers of BEDT-TTF, and layers comprising [Fe(C2O4)3]3−, Na+ and H2O. The packing of the layers follows the sequence ABCDABCDA as previously seen in the compound β″-(BEDT-TTF)4[Fe(C2O4)3]2.C12O6H24.9HxO1.
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beta bedt ttf 4 h3o cr c2o4 3 ch2cl2 effect of included solvent on the structure and properties of a conducting molecular Charge Transfer Salt
Inorganic Chemistry, 2001Co-Authors: Samina Rashid, Steven Firth, Scott S. Turner, Mark E Light, Michael B. Hursthouse, Le D Pevelen, P Day, Robin J H ClarkAbstract:The new Charge-Transfer Salt β″-(BEDT-TTF)[(HO)Cr(CO )]S, where BEDT-TTF = bis-(ethylenedithio)tetrathiafulvalene and S = CHCl has a broad metal-insulator transition at approximately 150 K. This differs from similar Salts in the BEDT-TTF tris(oxalato) metalate series, notably the superconducting materials with S = PhCN and the Salt with S = CHN, which has a sharp metal-insulator transition.
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The first molecular Charge Transfer Salt containing proton channels
Chemical Communications, 2001Co-Authors: Samina Rashid, Steven Firth, Scott S. Turner, Mark E Light, Michael B. Hursthouse, Robin J H ClarkAbstract:We report the first molecular Charge Transfer Salt containing channels of H3O+/H2O within its lattice; it is formulated β″-(BEDT-TTF)4[(H3O)Cr(C2O 4)3]2[(H3O)2(18-cro wn-6)]·5H2O [BEDT-TTF = bis(ethylenedithio)tetrathiafulvalene], deduced from the crystal structure and CC and C–S bond lengths and Raman stretching frequencies.
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molecular Charge Transfer Salt of bedt ttf bis ethylenedithio tetrathiafulvalene with the oxalate bridged dimeric anion fe2 c2o4 5 4
Inorganic Chemistry, 2000Co-Authors: Samina Rashid, Scott S. Turner, Mark E Light, Michael B. HursthouseAbstract:The compound (BEDT-TTF)(4). Fe-2(C2O4)(5) consists of an Fe-(III)-F-(III) oxalate bridged dimer, with a Fe-Fe distance of 5.472 Angstrom interspersed with 4 BEDT-TTF in a "checkerboard" arrangement It contains [Fe-2(C2O4)(5)](4-) anions and four dimerized BEDT-TTF cations each having an approximate Charge of +1. The compound is semiconducting and exhibits short-range antiferromagnetic ordering at low temperature.
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polymorphism based on molecular stereoisomerism in tris oxalato cr iii Salts of bedt ttf bis ethylenedithio tetrathiafulvalene
Chemical Communications, 1999Co-Authors: Lee Martin, Scott S. Turner, Peter Day, K Abdul M Malik, Simon J Coles, Michael B. HursthouseAbstract:Polymorphs of the Charge Transfer Salt (bedt-ttf)4[(H3O)- CrIII(C2O4)3]·PhCN [bedt-ttf = bis(ethylenedithio)tetrathiafulvalene] which are either superconducting or semiconducting differ in the spatial distribution of Δ and Λ enantiomers of [Cr(C2O4)3]3– within the unit cell.
Hiroki Akutsu - One of the best experts on this subject based on the ideXlab platform.
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a new ni dmit 2 based organic magnetic Charge Transfer Salt m po conh n methylpyridinium ni dmit 2 ch3cn
Inorganica Chimica Acta, 2018Co-Authors: Hiroki Akutsu, Scott S. Turner, Junichi Yamada, Shinichi Nakatsuji, Soichi Ito, Tomofumi Kadoya, Yasuhiro NakazawaAbstract:A new Ni(dmit)2-based organic magnetic Charge-Transfer (CT) Salt, (m-PO-CONH-N-methylpyridinium)[Ni(dmit)2]·CH3CN, where PO = 2,2,5,5-Tetramethyl-3-pyrrolin-1-oxyl free radical and dmit = 2-Thioxo-1,3-dithiole-4,5-dithiolate, was obtained, the crystal structure and magnetic properties of which are reported. Magnetic susceptibility of the CT Salt obeys a combination of 1D ferromagnetic (1DF) Heisenberg (J1DF = +0.26 K) and Singlet-Triplet (ST) models (JST = -51.2 K) with mean field (MF) approximation (JMF = -6.7 K), suggesting that spins on the PO radicals form 1D ferromagnetic chains and spins on the Ni(dmit)2 monoanions forms spin dimers at low temperature, the latter of which was also confirmed by band calculations.
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structures and properties of a bedt ttf based organic Charge Transfer Salt and the zwitterion of ferrocenesulfonate
Dalton Transactions, 2013Co-Authors: Hiroki Akutsu, Junichi Yamada, Shinichi Nakatsuji, Scott S. TurnerAbstract:The structure and properties of a new semiconducting BEDT-TTF-based Charge-Transfer Salt containing the ferrocenesulfonate (Fc-SO3(-)) anion, α-(BEDT-TTF)2Fc-SO3·2.5H2O, are described. The structure and magnetic properties of a zwitterion of ferrocenesulfonate, Fc(+)-SO3(-), are also reported.
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a new ferrocene containing Charge Transfer Salt ttf 2 fe c5h4 ch ch3 nhcoch2so3 2
Inorganic Chemistry Communications, 2012Co-Authors: Naoya Kanbayashi, Junichi Yamada, Hiroki Akutsu, Shinichi Nakatsuji, Scott S. TurnerAbstract:Abstract A novel ferrocene-containing dianion, Fe(C5H4–CH(CH3)NHCOCH2SO3–)2 (1), has been prepared. The oxidation potential of the PPh4 Salt is + 0.35 V (vs. SCE in PhCN), indicating that it is a stronger donor than TTF (tetrathiafulvalene) by + 0.03 V. The dianion provided a TTF Salt, the structure and physical properties of which are reported.
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a new bedt ttf based organic Charge Transfer Salt with a new anionic strong acceptor n n disulfo 1 4 benzoquinonediimine
Crystals, 2012Co-Authors: Hiroki Akutsu, Junichi Yamada, Shinichi Nakatsuji, Scott S. TurnerAbstract:A novel organic dianion, N,N'-Disulfo-1,4-benzoquinonediimine (1) has been prepared, which is a strong electron acceptor. The reduction potential of the PPh4 Salt indicates that 1 is a stronger acceptor than DDQ (2,3-dichloro-5,6-dicyano-1,4-benzoquinone). The dianionic acceptor provided a BEDT-TTF Salt, (BEDT-TTF)41·3H2O, the structures and physical properties of which are reported.
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anion polarity induced dual oxidation states in a dual layered purely organic paramagnetic Charge Transfer Salt ttf 3 po con ch3 c2h4so3 2 where po 2 2 5 5 tetramethyl 3 pyrrolin 1 oxyl free radical
CrystEngComm, 2011Co-Authors: Hiroki Akutsu, Junichi Yamada, Shinichi Nakatsuji, Atsushi Kawamura, Scott S. TurnerAbstract:The purely organic paramagnetic Charge-Transfer Salt (TTF)3(PO-CON(CH3)C2H4SO3)2 was prepared. The anisotropic anion forms a head-to-head arrangement in the anionic layer, giving dual donor layers with different oxidation states. SQUID magnetometry indicates that spins are localized not only on the free radical (PO) but also on both TTF layers.
Shinichi Nakatsuji - One of the best experts on this subject based on the ideXlab platform.
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a new ni dmit 2 based organic magnetic Charge Transfer Salt m po conh n methylpyridinium ni dmit 2 ch3cn
Inorganica Chimica Acta, 2018Co-Authors: Hiroki Akutsu, Scott S. Turner, Junichi Yamada, Shinichi Nakatsuji, Soichi Ito, Tomofumi Kadoya, Yasuhiro NakazawaAbstract:A new Ni(dmit)2-based organic magnetic Charge-Transfer (CT) Salt, (m-PO-CONH-N-methylpyridinium)[Ni(dmit)2]·CH3CN, where PO = 2,2,5,5-Tetramethyl-3-pyrrolin-1-oxyl free radical and dmit = 2-Thioxo-1,3-dithiole-4,5-dithiolate, was obtained, the crystal structure and magnetic properties of which are reported. Magnetic susceptibility of the CT Salt obeys a combination of 1D ferromagnetic (1DF) Heisenberg (J1DF = +0.26 K) and Singlet-Triplet (ST) models (JST = -51.2 K) with mean field (MF) approximation (JMF = -6.7 K), suggesting that spins on the PO radicals form 1D ferromagnetic chains and spins on the Ni(dmit)2 monoanions forms spin dimers at low temperature, the latter of which was also confirmed by band calculations.
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structures and properties of a bedt ttf based organic Charge Transfer Salt and the zwitterion of ferrocenesulfonate
Dalton Transactions, 2013Co-Authors: Hiroki Akutsu, Junichi Yamada, Shinichi Nakatsuji, Scott S. TurnerAbstract:The structure and properties of a new semiconducting BEDT-TTF-based Charge-Transfer Salt containing the ferrocenesulfonate (Fc-SO3(-)) anion, α-(BEDT-TTF)2Fc-SO3·2.5H2O, are described. The structure and magnetic properties of a zwitterion of ferrocenesulfonate, Fc(+)-SO3(-), are also reported.
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a new ferrocene containing Charge Transfer Salt ttf 2 fe c5h4 ch ch3 nhcoch2so3 2
Inorganic Chemistry Communications, 2012Co-Authors: Naoya Kanbayashi, Junichi Yamada, Hiroki Akutsu, Shinichi Nakatsuji, Scott S. TurnerAbstract:Abstract A novel ferrocene-containing dianion, Fe(C5H4–CH(CH3)NHCOCH2SO3–)2 (1), has been prepared. The oxidation potential of the PPh4 Salt is + 0.35 V (vs. SCE in PhCN), indicating that it is a stronger donor than TTF (tetrathiafulvalene) by + 0.03 V. The dianion provided a TTF Salt, the structure and physical properties of which are reported.
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a new bedt ttf based organic Charge Transfer Salt with a new anionic strong acceptor n n disulfo 1 4 benzoquinonediimine
Crystals, 2012Co-Authors: Hiroki Akutsu, Junichi Yamada, Shinichi Nakatsuji, Scott S. TurnerAbstract:A novel organic dianion, N,N'-Disulfo-1,4-benzoquinonediimine (1) has been prepared, which is a strong electron acceptor. The reduction potential of the PPh4 Salt indicates that 1 is a stronger acceptor than DDQ (2,3-dichloro-5,6-dicyano-1,4-benzoquinone). The dianionic acceptor provided a BEDT-TTF Salt, (BEDT-TTF)41·3H2O, the structures and physical properties of which are reported.
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anion polarity induced dual oxidation states in a dual layered purely organic paramagnetic Charge Transfer Salt ttf 3 po con ch3 c2h4so3 2 where po 2 2 5 5 tetramethyl 3 pyrrolin 1 oxyl free radical
CrystEngComm, 2011Co-Authors: Hiroki Akutsu, Junichi Yamada, Shinichi Nakatsuji, Atsushi Kawamura, Scott S. TurnerAbstract:The purely organic paramagnetic Charge-Transfer Salt (TTF)3(PO-CON(CH3)C2H4SO3)2 was prepared. The anisotropic anion forms a head-to-head arrangement in the anionic layer, giving dual donor layers with different oxidation states. SQUID magnetometry indicates that spins are localized not only on the free radical (PO) but also on both TTF layers.