Journal ArticleDOI
Raman spectra of mixed valent TTF salts; relation between Raman frequency and formal charge
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In this article, the Raman spectra of mixed valent TTF halides and TTF-TCNQ were obtained and a plot of the TTF frequencies vs. the formal charge was given.About:
This article is published in Solid State Communications.The article was published on 1980-06-01. It has received 65 citations till now. The article focuses on the topics: Raman spectroscopy & Formal charge.read more
Citations
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Journal ArticleDOI
Tetrathiafulvalene Derivatives as NLO-phores: Synthesis, Electrochemistry, Raman Spectroscopy, Theoretical Calculations, and NLO Properties of Novel TTF-Derived Donor-π-Acceptor Dyads
Mar González,José L. Segura,Carlos Seoane,Nazario Martín,Javier Garín,Jesús Orduna,Rafael Alcalá,Belén Villacampa,Hernández,López Navarrete Jt +9 more
TL;DR: Novel pi-conjugated donor-acceptor chromophores, based on the strong electron-donating tetrathiafulvalene moiety and different electron-withdrawing acceptors, exhibit large second-order optical nonlinearities.
Journal ArticleDOI
Structure-property relationships in push-pull amino/cyanovinyl end-capped oligothiophenes: quantum chemical and experimental studies.
María Moreno Oliva,Juan Casado,M. Manuela M. Raposo,A. Maurício C. Fonseca,Horst Hartmann,Víctor Hernández,Juan T. López Navarrete +6 more
TL;DR: A series of push-pull chromophores built around thiophene-based pi-conjugating spacers and bearing various types of amino donors and cyanovinyl acceptors have been analyzed to derive useful information about the molecular structure of these NLO-phores.
Journal ArticleDOI
Neutral-to-ionic transition in tetrathiafulvalene- p-chloranil as investigated by optical reflection spectra
TL;DR: In this article, the dominant part of the neutral-to-ionic transition in a tetrathiafulvalene-p-chloranil (TTFCA) single crystal over the temperature range from 2 K to room temperature was investigated and it was shown that the transition occurs in a temperature range of about 30 K in width.
Journal ArticleDOI
FT-IR absorption spectroscopy of BEDT-TTF radical salts: charge transfer and donor-anion interaction
J. Moldenhauer,Christof Horn,Konstantin I. Pokhodnia,Dieter Schweitzer,I. Heinen,Heimo J. Keller +5 more
TL;DR: In this article, the authors investigated the metal-insulator phase transition of α-(BEDT-TTF) 2 I 3 at 135 K with respect to this vibrational model ν 27 and showed that it is possible to detect a charge localization in at least one of the two crystallographic different stacks.
Journal ArticleDOI
Effect of Substitutional Impurities on the Neutral-to-Ionic Phase Transition in TTF- p -Chloranil Crystal
TL;DR: In this article, the effect of impurities on the neutral-to-ionic phase transition in TTF-chloranil crystal was investigated and it was concluded that the phase transition occurs inhomogeneously due to a binary phase separation into quasi-ionic and quasi-neutral regions.
References
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Journal ArticleDOI
Optical properties of the radical cation tetrathiafulvalenium (TTF+) in its mixed-valence and monovalence halide salts.
TL;DR: In this article, optical properties of the radical cation TT${\mathrm{F}}+}$ (tetrathiafulvalenium) in a variety of different conditions were presented.
Journal ArticleDOI
Vibrational spectroscopy of molecular constituents of one‐dimensional organic conductors. Tetrathiofulvalene (TTF), TTF+, and (TTF+)2 dimer
TL;DR: In this article, an extensive vibrational assignment of TTF and TTF•d4 is achieved, improving the previously reported one through the use of polarized infrared spectra of single crystals of the monoclinic form.
Journal ArticleDOI
Raman spectra of conducting TCNQ salts; Estimation of the degree of charge transfer from vibrational frequencies
TL;DR: In this paper, the linear dependency of TCNQ ν4 frequencies on the formal charge was observed and was attributed to the motional narrowing of the Raman band by hopping of conduction electrons.
Journal ArticleDOI
Über zweistufige Redoxsysteme, X1) Tetrathio-äthylene und ihre höheren Oxidationsstufen
TL;DR: In this paper, the influence of alkyl and benzo substitution is discussed in a reversible two-step redox system in acetonitrile with K = 106-107.
Book
Synthesis and Properties of Low-Dimensional Materials,
Joel S. Miller,Arthur J. Epstein +1 more
TL;DR: In this article, the authors characterized the unique properties exhibited by pseudo-one-dimensional materials and pseudo-two-dimensional complexes in one and two dimensions with respect to the remaining dimension.