Tetrathiafulvalene chemistry
نویسندگان
چکیده
Tetrathiafulvalene (TTF) is a fascinating system: it is quite rare to find a synthetic molecule endowed with such a simple architecture that is capable of concentrating intense interest from various communities of chemists! This modest-sized molecule which consists of only 14 atoms, was synthesized in the early nineteen seventies [1-3] and since then has proved to be exceptionally popular in various fields of chemistry.
منابع مشابه
Computing Vertex PI Index of Tetrathiafulvalene Dendrimers
General formulas are obtained for the vertex Padmakar-Ivan index (PIv) of tetrathiafulvalene (TTF) dendrimer, whereby TTF units we are employed as branching centers. The PIv index is a Wiener-Szeged-like index developed very recently. This topological index is defined as the summation of all sums of nu(e) and nv(e), over all edges of connected graph G.
متن کاملSubstituent-dependent spin-density distribution and coexistence of Fe 3d and π spins on ferrocene-tetrathiafulvalene hybrids.
Ferrocene (Fc) and tetrathiafulvalene (TTF) moieties were incorporated into novel hybrid molecules of structure FcS4TTF(R)2 (R = CF3 and SMe). [FcS4TTF(R)2](•+) exhibited R-dependent spin-density distribution, and [FcS4TTF(CF3)2](••2+) showed the coexistence of Fc-centered Fe 3d and TTF-centered π spins. The solid-state molecular structures in different oxidation states reflect their characteri...
متن کاملConformational control of TTFV π-frameworks through naphthyl substituents.
With 1- or 2-naphthyl substituted at the vinyl positions, the conformation of the tetrathiafulvalene vinylogue π-framework can be greatly modified from completely planar to highly twisted, and the structural changes lead to markedly different electronic and electrochemical behaviours.
متن کاملFluoride-selective optical sensor based on the dipyrrolyl-tetrathiafulvalene chromophore.
A chemosensor bearing dipyrrolyl motifs as recognition sites and a tetrathiafulvalene redox tag has been evaluated as an optical and redox sensor for a series of anions (F(-), Cl(-), Br(-), HSO(4)(-), CH(3)COO(-), and H(2)PO(4)(-)) in DCM solution. The receptor shows specific optical signaling for fluoride but little electrochemical effect in solution. The solid-state performance of the sensor ...
متن کاملAcetylenic tetrathiafulvalene-dicyanovinyl donor-acceptor chromophores.
Compounds incorporating the tetrathiafulvalene (TTF) donor unit and one or two cyanoethynylethene (CEE) acceptor units were prepared by Knoevenagel condensations of highly unstable, TTF-linked propargylic aldehyde or ketone derivatives. The resulting TTF-CEEs are very strong chromophores with low-energy end-absorptions beyond 900 nm. The molecules experience reversible oxidations of the TTF uni...
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عنوان ژورنال:
دوره 11 شماره
صفحات -
تاریخ انتشار 2015