31366-25-3Relevant academic research and scientific papers
Synthesis of Unsymmetrical Tetrathiafulvalenes and Electrical Conductivities of Their Tetracyanoquinodimethane Complexes
Tatemitsu, Hitoshi,Nishikawa, Etsushi,Sakata, Yoshiteru,Misumi, Soichi
, p. 106 - 107 (1985)
The preparation of some unsymmetrical tetrathiafulvalenes and the electrical conductivities of their charge transfer complexes with tetracyanoquinodimethane (TCNQ) are described; the ethylenedithio(trimethylene)tetrathiafulvalene-TCNQ complex exhibited higher conductivity than complexes of tetrathiafulvalene, tetramethyltetrathiafulvalene, and hexamethylenetetrathiafulvalene with TCNQ.
Preparation of Methyl Chalcogenated Derivatives of 1,4,5,8-Tetrathiatetralin
Nakatsuji, Shin'ichi,Amano, Yoshiki,Kawamura, Haruki,Anzai, Hiroyuki
, p. 841 - 842 (1994)
Tetrakis(methylthio)-1,4,5,8-tetrathiatetralin 4 and tetrakis(methylseleno)-1,4,5,8-tetrathiatetralin 6 is successfully prepared by the reaction of tetrathiatetralin (TTT) 2 with lithium diissopropylamide and MeSSMe or MeSeSeMe in diethyl ether and a remarkable solvent effect is observed in the analogous reaction in tetrahydrofuran to give tetrakis(methylthio)tetrathiafulvalene 5 by a novel rearrangement.
SULFUR-CONTAINING CARBENE-METAL COMPOUNDS: GENERAL ROUTE FROM CARBON DISULFIDE MANGANESE COMPLEXES; X-RAY STRUCTURE OF 1,3-DITHIOL-2-YLIDENEMANGANESE(I) DERIVATIVE
Marouille, J.Y. Le,Lelay, C.,Benoit, A.,Grandjean, D.,Touchard, D.,at al.
, p. 133 - 142 (1980)
Chiral carbene-manganese(I) complexes have been synthesized by the cycloaddition of dimethyl acetylenedicarboxylate to the coordinated CS2 ligand in Mn(η2-CS2)(CO)(L)C5H4R (L = P(OMe)3; PMe2Ph; PMe3).Irrespective of the nature of the ligand L, these 1,3-dithiol-2-ylidenemanganese(I) complexes are stable towards isomerisation into heterometallocycles and exhibit low frequency carbonyl absorption bands in the infrared consistent with a strong electron releasing effect of the carbene ligand.The structure of Mn(CS2C2(CO2Me)2)(CO)(P(OMe)3)(C5H5) has been determined by X-ray analysis of a suitable crystal.The molecule shows a carbene carbon-manganese bond C(7)-Mn of length 1.876 Angstroem and a planar carbene which does not adopt the 1,3-dithiolium aromatic-ring geometry but contains a carbon-carbon double bond, C(8)-C(9), of length of 1.341 Angstroem.The CO2Me groups are out of the plane of the carbene ligand and two positions with equal occupancy are found for each oxygen atom O(3) and O(5) belonging to the C=O groups.
Unprecedented electrophilic behaviour of tetrathiafulvalenium salts
Callaghan, Owen,Franck, Xavier,Murphy, John A.
, p. 1923 - 1924 (1997)
Primary tetrathiafulvalenium salts display a diverse and unprecedented reactivity towards nucleophiles.
An ESR Study of the Radical Cations of Tetrathiafulvalene (TTF) and Electron Donors Containing the TTF Moiety
Cavara, Luka,Gerson, Fabian,Cowan, Dwaine O.,Lerstrup, Knud
, p. 141 - 152 (1986)
Hyperfine data and g factors are reported for the radical cations of tetrathiafulvalene (TTF; 1) and of its derivatives 2-13.From the intense satellite spectra of 1+. - 13+. not only the coupling constants of the 33S isotopes in the TTF moiety could be determined, but also, in favourable cases, those of the 13C isotopes in the central double bond.The former values range from 0.370 (8+.) to 0.470 mT (4+.) and the latter from 0.255 (8+.) to 0.360 mT (4+.) in the radical cations of bis(ethylenedithio)-TTF (8+.) and tetracyano-TTF (4+.).The radical cation of TTF (1+.) exhibits intermediate values, 0.425 for the 33S and 0.285 mT for the 13C isotopes.The spin population in 1+. - 13 +. resides, to a large extent, in the central S2C = CS2 part of the ?-system.It tends to increase (decrease) by substitution with electron-accepting (donating) groups in the 2,3,6,7-positions of TTF.
A Redox-Active Tetrathiafulvalene [2]Pseudorotaxane: Spectroelectrochemical and Cyclic Voltammetric Studies of the Highly-Reversible Complexation/Decomplexation Process
Devonport, Wayne,Blower, Mark A.,Bryce, Martin R.,Goldenberg, Leonid M.
, p. 885 - 887 (1997)
The complexation of TTF 2 and cyclobis(paraquat-p-phenylene) 14+ has been studied by cyclic voltammetry and by spectroelectrochemistry: shifts in the redox potentials for the TTF and the 14+ components of 45 and 30 mV, respectively, occur upon complexation. Decomplexation of 2.14+ upon oxidation of the TTF unit to the cation radical species has been monitored by spectroelectrochemistry. The complexation/decomplexation process is highly reversible over at least 10 electrochemical cycles, and this process is accompanied by a color change of the solution from dark green (complexed) to pale brown (uncomplexed) which is clearly visible to the naked eye.
Dimensionality Examination of Cation Radical Salts Based on EDT-TTF (EDT-TTF = Ethylenedithiotetrathiafulvalene)
Kato, Reizo,Kobayashi, Hayao,Kobayashi, Akiko
, p. 781 - 784 (1989)
Crystal and electronic structures of organic conductors, (EDT-TTF)2X (EDT-TTF = ethylenedithiotetrathiafulvalene; X = PF6, AsF6, TaF6, BF4, ClO4, ReO4, Au(CN)2), have been studied.In all these compounds, the donor molecules exhibit face-to-face stacking.Simple tight-binding band calculations indicate quasi-onedimensional electronic structures.
One-electron Reduction Potentials of Several Electron Acceptor Molecules and Cation Radicals of Donors
Iida, Yoichi
, p. 2673 - 2674 (1980)
Reversible one-electron reduction potential values of several electron acceptor molecules and cation radicals of donors were estimated by means of the equilibrium constant of electron transfer reaction between ion radicals in acetonitrile solution, and the results were compared with the observed electrochemical data.
A systematic study of the variation of tetrathiafulvalene (TTF), TTF+ and TTF2+ reaction pathways with water in the presence and absence of light
Adeel, Shaimaa M.,Li, Qi,Nafady, Ayman,Zhao, Chuan,Siriwardana, Amal I.,Bond, Alan M.,Martin, Lisandra L.
, p. 49789 - 49795 (2014)
The chemistry of the strongly electron donating tetrathiafulvalene (TTF) molecule is exceptionally well known, but detailed knowledge of the chemistry of its technologically important one (TTF+) and two (TTF2+) electron oxidised redox partners is limited. In this paper, the different pathways that apply to the reaction of TTF, TTF+ and TTF2+ with water have been identified in the absence and presence of light. On the basis of data obtained by transient and steady state voltammetric methods in CH3CN (0.1 M Bu4NPF6) containing 10% (v/v) H2O, TTF is shown to participate in an acid base equilibrium reaction with HTTF+, with H2O acting as the proton donor. In contrast, TTF+ generated by one electron bulk oxidative electrolysis of TTF remains unprotonated and fully stable in the presence of 10% H2O in the dark. However, when this cation radical is exposed to white or blue (λ = 425 nm) light, TTF+ is photoreduced to TTF, with oxidation of water to give oxygen (detected by a Clark electrode) and protons that react with TTF to give HTTF+ as the counter reaction. Again emphasising important reaction pathway differences associated with each redox level, TTF2+ generated by bulk two electron oxidative electrolysis of TTF reacts rapidly with water, even in the dark, to give TTF+, protons, HTTF+ and oxygen as the products.
Azulene-based tetrathiafulvalenes: Preparation and their electron-donating ability
Sato, Ohki,Saito, Takahito,Aoki, Masami,Sakai, Atsushi
, p. 1254 - 1260 (2019/11/14)
The condensation reaction of dithiocarbonates derived from azuleno- and guaiazulenopentathiepin with vinylene trithiocarbonate and the ethylenedithio derivative in triethyl phosphite afforded azulene-based tetrathiafulvalenes [Az-TTF, Az-(EDT)TTF, GAz-TTF and GAz-(EDT)TTF], respectively. The vinylene derivatives (Az-TTF and GAz-TTF) showed slightly higher electron-donating ability than the corresponding ethylenedithio ones [Az-(EDT)TTF and GAz-(EDT)TTF] by CV measurement. GAz-TTFs produced charge transfer complexes with tetracyanoquinodimethane, respectively.
