Thermal decomposition of mixed-valent diruthenium pentakis(alkanoates) enhanced by their liquid crystalline state

The thermal decomposition of mixed-valent diruthenium pentakis(alkanoates) of general formula Ru2 (II,III)(O2C(CH2)n-2CH3)5 (for n = 3, 4, 5, 6, 8, 10, 12, 16), studied by a combination of several complementary physicochemical techniques, has been found to take place in two differentiated steps. The...

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Autor principal: Rusjan, M.C
Otros Autores: Sileo, E.E, Cukiernik, F.D
Formato: Acta de conferencia Capítulo de libro
Lenguaje:Inglés
Publicado: Elsevier Science Publishers B.V. 1999
Acceso en línea:Registro en Scopus
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Registro en la Biblioteca Digital
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008 190411s1999 xx ||||fo|||| 00| 0 eng|d
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030 |a SSIOD 
100 1 |a Rusjan, M.C. 
245 1 0 |a Thermal decomposition of mixed-valent diruthenium pentakis(alkanoates) enhanced by their liquid crystalline state 
260 |b Elsevier Science Publishers B.V.  |c 1999 
270 1 0 |m Rusjan, Marcia C.; Universidad de Buenos Aires, Capital Federal, Argentina 
506 |2 openaire  |e Política editorial 
504 |a Cukiernik, F.D., Ibn-Elhaj, M., Maldivi, P., Giroud-Godquin, A.M., Guillon, D., Marchon, J.C., Skoulios, A., (1991) Liq. Crystals, 9, p. 903 
504 |a Bonnet, L., Cukiernik, F.D., Maldivi, P., Giroud-Godquin, A.M., Marchon, J.C., Ibn-Elhaj, M., Guillon, D., Skoulios, A., (1994) Chem. Mater., 6, p. 31 
504 |a Cukiernik, F.D., Ibn-Elhaj, M., Chaia, Z.D., Marchon, J.C., Giroud-Godquin, A.M., Guillon, D., Skoulios, A., Maldivi, P., (1998) Chem. Mater., 10, p. 83 
504 |a Cukiernik, F.D., Marchon, J.C., Luneau, D., Maldivi, P., (1998) Inorg. Chem., 37, p. 3698 
504 |a Rusjan, M.C., Sileo, E.E., Cukiernik, F.D., to be submitted; Sileo, E.E., Morando, P.J., Dellavedova, C.O., Blesa, M.A., (1989) Termochim. Acta, 138, p. 233 
504 |a Carr, N.J., Galwey, A.K., (1988) J. Chem. Soc. Faraday Trans., 1, p. 84 
504 |a Sileo, E.E., Morando, P.J., Blesa, M.A., (1989) Termochim. Acta, 152, p. 299 
504 |a Ibn-Elhaj, M., Guillon, D., Skoulios, A., Giroud-Godquin, A.M., Marchon, J.C., (1992) J. Phys. II Paris, 2, p. 2197 
504 |a Segrouchni, R., Skoulios, A., (1995) J. Phys. II Paris, 5, p. 1385 
504 |a Abied, H., Guillon, D., Skoulios, A., Weber, P., Giroud-Godquin, A.M., Marchon, J.C., (1987) Liq. Crystals, 2, p. 269 
504 |a Maldivi, P., (1989), PhD thesis, University of Grenoble; Cukiernik, F.D., (1993), PhD thesis, University of Grenoble; Poizat, O., Cukiernik, F.D., work in progress 
520 3 |a The thermal decomposition of mixed-valent diruthenium pentakis(alkanoates) of general formula Ru2 (II,III)(O2C(CH2)n-2CH3)5 (for n = 3, 4, 5, 6, 8, 10, 12, 16), studied by a combination of several complementary physicochemical techniques, has been found to take place in two differentiated steps. The first one gives the divalent analogues Ru2 (II,II)(O2C(CH2)n-2CH3)4 as the main product, in a one-electron reduction of the bimetallic core likely provided by oxidative decarboxylation of the axial anion. The second one involves the reduction of the binuclear core to metallic ruthenium, and the oxidation of the equatorial carboxylates. The first step is very much influenced by the aggregation state of the system, the occurrence of a liquid-crystalline phase in compounds with n>6 facilitates the thermolysis: decomposition temperatures fall from ≈300 °C for compounds with n = 3 to ≈175 °C for compounds with n = 10-16.  |l eng 
536 |a Detalles de la financiación: Universidad de Buenos Aires, UBACyT EX117 
536 |a Detalles de la financiación: Fundación Antorchas 
536 |a Detalles de la financiación: We are greatly indebted to Liza V. Agesta (deceased) for her help in the synthesis of some of the studied compounds. We wish to thank Dr Naomi Hoshino (Sapporo University) for her interesting comments at the 3rd ISMM (Peñiscola, Spain) at the beginning of this work as well as Dr Miguel A. Blesa (University of Buenos Aires) for a critical reading of this manuscript. Financial support from the University of Buenos Aires (Grant UBACyT EX117 to FDC and Research Fellowship to MCR) and the Fundación Antorchas are acknowledged. 
593 |a INQUIMAE, Depto. Quim. Inorg., Analitica Y Q., Núñez, Argentina 
690 1 0 |a AGGLOMERATION 
690 1 0 |a HIGH TEMPERATURE EFFECTS 
690 1 0 |a LIQUID CRYSTALS 
690 1 0 |a OXIDATION 
690 1 0 |a PYROLYSIS 
690 1 0 |a OXIDATIVE DECARBOXYLATION 
690 1 0 |a RUTHENIUM CARBOXYLATE 
690 1 0 |a THERMOLYSIS 
690 1 0 |a RUTHENIUM COMPOUNDS 
700 1 |a Sileo, E.E. 
700 1 |a Cukiernik, F.D. 
711 2 |c Amsterdam 
773 0 |d Elsevier Science Publishers B.V., 1999  |g v. 124  |h pp. 143-147  |k n. 1  |p Solid State Ionics  |x 01672738  |w (AR-BaUEN)CENRE-6880  |t Solid State Ionics 
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