Pyridino-Tetraheterofulvalenes and a Few of their Salts

Papavassiliou, George C.; Yiannopoulos, S. Y.; Zambounis, J. S.

doi:10.1007/978-1-4899-2091-1_22

Cited by 10 publications

(11 citation statements)

References 3 publications

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“…Syntheses of symmetric and asymmetric TTF-pyrazines were described by Papavassiliou et al in 1987. 98 Recently, the first metal complexes with these ligands have been reported. Both TTFprz and TTFprz 2 form 1-D coordination polymers with CuCl 2 .…”

Section: N-heterocyclic Ligandsmentioning

confidence: 99%

Ligands Derived from Tetrathiafulvalene: Building Blocks for Multifunctional Materials

Shatruk

Ray

2010

Dalton Trans.

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The last decade has witnessed many advances in the coordination chemistry of tetrathiafulvalene (TTF). Various ligands, in which a metal-binding functionality is attached to the TTF unit, have been synthesized and used for the preparation of metal complexes. This Perspective summarizes the main types of TTF-containing ligands and their metal complexes and outlines the potential for the use of these building blocks in the design and assembly of multifunctional molecular materials.

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Section: N-heterocyclic Ligandsmentioning

confidence: 99%

Ligands Derived from Tetrathiafulvalene: Building Blocks for Multifunctional Materials

Shatruk

Ray

2010

Dalton Trans.

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“…A mixture of DIET and TMET isomen; ",sullS. DIET has been obtained earlier by a similar procedun: (6), but no details concerning it' sttucture have been reponed SO far. TMET was isolated starting from a sulphate diester earlier.…”

Section: Ie Projectmentioning

confidence: 94%

“…So far, most of the recent work to vary the physical properties by chemical action concentrated on the preparation of BEDT-1TF salts with a wide variety of anions. Fewer efforts were concerned with a systematic variation of the BEDT-TJF moieties [6]. One major problem arises in the pursuit of the latter goal: the substitution of the periphenJ hydrogen atoms could lead to a manifold of chiral molecules.…”

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confidence: 99%

Organic metals from chiral BEDT-TTF donors

et al. 1991

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The chemistry and physics of solids with layered structures has been of central interest in the solid state sciences for several decades I I]. One of the many scientifically and technically imponant aspects connected with these materials is the possibility of pronounced two-dimensional delocalized interatomic and/or intennolecular electronic interactions, which lead to unusual magnetic and electric properties in the bulk. Especially remarkable are a variety of phase transitions. which occur in selected materials of this type at different temperatures.Typical, and very welJ -known. examples of such specimens are graphite, the binary sulfides MoS 1 and TaS2' together with several of their intercalation compounds, ternary or quarternary chalcogenides and/or halides of the transition elements, and so on. Inorganic ternary systems. composed of anionic bansition metal oxide layers and different kinds of countercarions located between these anion sheets. are especially well-suited for systematic variations in composition and -as a consequence thereof -in solid state properties. Varying stages of band fillings can be achieved "chemically," depending on the number of electrons per metal ion in the different sheets. The systematic work on these materials culminated in the discovery of superconductivity above 40 K by MiiUer and Bednorz in layered copper oxide structures (2).With the exception of graphite-related compounds -which consist mainly of carbon-there were no comparable classes of electronically collective interacting layered organic materials. Most of the two-dimensional organic solids -which means layered matrices made up mainly of !he main group elements carbon, nitrogen, oxygen, hydrogen and sulfur -are diamagnetic and Insulating. The electrically conducting andlor magnetically interesting organic charge transfer solids, on the other hand, contain columns or chains of interacting molecules or atoms. Th is arrangemem results in pronounced "o ne-dimen sio nal" physical properties, with the well-known phase transi tions at comparatively high temperatures. STATUS QUOUp to now, there is one organic two-dimensional "exception:" the cation radical salts of the donor BEDT-TIF. Numerous BEDT-TTF salts -metallic, semiconducting and/or insulating -have been prepared in the last few years [3,4]

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“…The electron donating ability might be weakened by introduction of an electron de®cient pyrazine ring. 4 With this in mind, we have now designed and synthesized 5,7-bis(1,3-dithiol-2-ylidene)-5,7-dihydrofuro [3,4-b]pyrazine (BDTFP) 1 as a new type of extended donor. We have obtained single crystalline PF 6 and AsF 6 salts of BDTFP and have clari®ed crystal structures, and conducting and magnetic properties of these salts revealing that these salts undergo phase transitions at 175 or 220 K and have a very unusual two-leg ladder type intermolecular orbital overlapping mode.…”

Section: Received 31st October 2000 Accepted 24th November 2000 First...mentioning

confidence: 99%

Preparation, crystal structures and electrical properties of PF6 and AsF6 salts of a novel furopyrazine-extended donor (BDTFP) with a two-leg ladder type orbital overlapping mode

2001

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Pyridino-Tetraheterofulvalenes and a Few of their Salts

Cited by 10 publications

References 3 publications

Ligands Derived from Tetrathiafulvalene: Building Blocks for Multifunctional Materials

Ligands Derived from Tetrathiafulvalene: Building Blocks for Multifunctional Materials

Organic metals from chiral BEDT-TTF donors

Preparation, crystal structures and electrical properties of PF6 and AsF6 salts of a novel furopyrazine-extended donor (BDTFP) with a two-leg ladder type orbital overlapping mode

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