Molecular materials based upon organic π-donors and magnetic anions
| Autor: | Eugenio Coronado, F. Bérézovsky, Carlos J. Gómez-García, Smail Triki, J. Sala Pala |
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| Přispěvatelé: | Chimie, Electrochimie Moléculaires et Chimie Analytique (CEMCA), Institut Brestois Santé Agro Matière (IBSAM), Université de Brest (UBO)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), RENARD, NICOLAS |
| Jazyk: | angličtina |
| Rok vydání: | 2000 |
| Předmět: |
010405 organic chemistry
Stereochemistry General Physics and Astronomy Crystal structure 010402 general chemistry Electrochemistry 01 natural sciences Magnetic susceptibility 0104 chemical sciences Metal Paramagnetism chemistry.chemical_compound Crystallography chemistry visual_art [CHIM] Chemical Sciences visual_art.visual_art_medium Molecule [CHIM]Chemical Sciences Tetrathiafulvalene Tetrahydrofuran |
| Zdroj: | Journal de Physique IV Proceedings Journal de Physique IV Proceedings, EDP Sciences, 2000, 10, pp.Pr3--35-Pr3-40 Scopus-Elsevier |
| ISSN: | 1155-4339 1764-7177 |
| Popis: | Electrochemical combination of the magnetic dinuclear anion [MM'(C 2 O 4 )(NCS) 8 ] 4- (MM' = CrCr, CrFe) or paramagnetic mononuclear anion [Cr(NCS) 6 ] 3- with the ET organic π-donor (ET = BEDT-TTF = bis(ethylenedithio)tetrathiafulvalene) gives rise to two new series of molecular hybrid salts formulated (ET) 5 [MM'(C 2 O 4 )(NCS) 8 (MM' = CrCr (1), CrFe (2)), (ET) 8 [MM'(C 2 O 4 )(NCS) 8 ] (3), (ET) 5.5 f Cr(NCS) 6 ] (4) and (ET) 5 [(C 2 H 5 ) 4 N] [Cr(NCS) 6 ](THF) (5) (THF = tetrahydrofuran). The crystal structures consist of alternating organic and inorganic layers. The organic part does not produce any detectable effect on the magnetic properties coming from the inorganic sublattice. They indicate the presence of antiferromagnetic coupling in the homometallic dimers (1 and 3), while the coupling is ferromagnetic in the heterometallic one (2). Conductivity measurements reveal a metallic state for compounds 3 and 5. |
| Databáze: | OpenAIRE |
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