- (2-Methylidene-1,3-dithiolotetrathiafulvalene (DT-TTF): New Unsymmetrical TTFs condensed with 1,3-Dithiol-2-ylidene Moietes
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The synthesis and properties of the unsymmetrical tetrathiafulvalenes condensed with 1,3-dithiol-2-ylidene moieties are described; the electrical properties of several cation radical salts are also presented.
- Misaki, Yohji,Nishikawa, Hiroyuki,Fujiwara, Hideki,Kawakami, Kazuya,Yamabe, Tokio,et al.
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- Synthesis of some new electron π-donors containing methoxy groups
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The synthesis of some new electron π-donors carrying four or two methoxy groups is described. The precursor 5,6-dimethoxy-5,6-dihydro[1,3]dithiolo[4,5- b] [1,4]dithiin-2-thione was synthesized and by coupling reactions the symmetrical 5,6,5′,6′-tetramethoxy-5,6,5′,6′-tetrahydro- [2,2′]bi[[1,3]dithiolo[4,5-b][1,4]dithiinylidene] and unsymmetrical 5,6-dimethoxy-5,6,5′,6′-tetrahydro-[2,2′]bi[[1,3]-dithiolo[4, 5-[1,4]dithiinylidene], 2-(5,6-dimethoxy-5,6-dihydro-[1,3]dithiolo[4,5-b][1,4] dithiin-2-ylidene)-5,6-dihydro-[1,3]dithiolo[4,5-b][1,4]-dioxine and (5,6-dimethoxy-5,6-dihydro-[1,3]dithiolo[4,5-b][1,4]dithiin-2-ylidene)-6, 7-dihydro-5H-[1,3]dithiolo[4,5-6][1,4]dithiepine donors were prepared. They have been characterized spectroscopically and their redox potentials determined using cyclic voltammetry.
- Mousdis,Papavassiliou,Psaroudakis,Anyfantis
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p. 839 - 841
(2007/10/03)
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- A high yield conversion of tetrathiafulvalene into bis(ethylenedithio)tetrathiafulvalene and derivatives
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TTF is converted into BEDT-TTF (80%) in a one pot reaction.
- Meline, Ronald L.,Elsenbaumer, Ronald L.
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p. 3575 - 3576
(2007/10/03)
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- Synthesis of New Unsymmetrical Multi-Sulfur TTF Derivatives
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Multi-sulfur TTF derivatives with eight or nine sulfur atoms were synthesized for the development of new conducting organic salts.Their oxidation potentials were measured, and compared with those of the related donor molecules.The electrical conductivities of some of the ion radical salts were measured.
- Ikegawa, Shunjiro,Miyawaki, Kenji,Nogami, Takashi,Shirota, Yasuhiko
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p. 2770 - 2772
(2007/10/02)
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- Unsymmetrically Substituted Ethylenedioxytetrathiafulvalenes
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Seven new electron donors, 4,5-ethylenedioxytetrathiafulvalenes where 4',5'-substituents are trimethylenedithio, ethylenedithio, methylenedithio, 2-oxatrimethylenedithio, methylthio, hydrogen and methyl carboxylate, are prepared, and their electrochemical properties are investigated.
- Mori, Takehiko,Inokuchi, Hiroo,Kini, Aravinda M.,Williams, Jack M.
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p. 1279 - 1282
(2007/10/02)
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- BIS (ALKYLTHIO) TETRATHIAFULVALENES AND A FEW OF THEIR SALTS
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Some unsymmetrical bis(alkylthio)tetrathiafulvalenes (?-donors) and a number of their charge transfer complexes and cation radical salts of the type DmXn (where D=?-donor, X=TCNQ, I3, IBr2, PF6, ClO4) have been prepared and studied.
- Papavassiliou, G.C.,Zambounis, J.S.,Mousdis, G.A.,Gionis, V.,Yiannopoulos, S.Y.
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p. 269 - 276
(2007/10/02)
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- 4,5-METHYLENEDITHIO-4',5'-PROPYLENEDITHIOTETRATHIAFULVALENE (MPT) AND 4,5-ETHYLENEDITHIO-4',5'-PROPYLENEDITHIOTETRATHIAFULVALENE (EPT)
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Title elctron donors, unsymmetrical analogs of Bis(ethylenedithio)tetrathiafulvalene, are synthesized.The utility of 252Cf Plasma Desorption Mass Spectrometry in the characterization and purity determination is also reported.
- Kini, Aravinda M.,Tytko, Stephen F.,Hunt, Jerry E.,Williams, Jack M.
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p. 4153 - 4156
(2007/10/02)
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- Unsymmetrically Substituted Dithiadiselenafulvalene Donors for Organic Metals. Synthesis and Conductivity of the Charge-transfer Salts
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New unsymmetrical dithiadiselenafulvalene donors and their radical cation salts with inorganic anions have been prepared; among the salts dimethyl(ethylenedithio)dithiaselenafulvalene salts exhibit the highest electrical conductivity.
- Kikuchi, Koichi,Namiki, Takahisa,Ikemoto, Isao,Kobayashi, Keiji
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p. 1472 - 1473
(2007/10/02)
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- THE STUDY OF CHARGE TRANSFER COMPLEXES OF BEDT-TTF DERIVATIVES
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We have synthesized BEDT-TTF derivatives, which include eight sulfur atoms per molecule, and prepared several charge transfer (CT) complexes with TCNQs, p-quinones, and TCNEs in order to clarify the steric effect of substituents, R.Some of the CT complexes revealed high conductivities.
- Saito, Gunzi,Hayashi, Hitoshi,Enoki, Toshiaki,Inokuchi, Hiroo
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p. 341 - 344
(2007/10/02)
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- Synthesis of Unsymmetrical Tetrathiafulvalenes and Electrical Conductivities of Their Tetracyanoquinodimethane Complexes
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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.
- Tatemitsu, Hitoshi,Nishikawa, Etsushi,Sakata, Yoshiteru,Misumi, Soichi
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p. 106 - 107
(2007/10/02)
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