Artículo
Cukiernik, F.D.; Luneau, D.; Marchon, J.-C.; Maldivi, P. "Mixed-Valent Diruthenium Long-Chain Carboxylates. 2. Magnetic Properties" (1998) Inorganic Chemistry. 37(15):3698-3704
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Abstract:
The magnetic properties of several mixed-valent diruthenium long-chain carboxylates of general formula Ru2(RCO2)4X (X = Cl, DOS, or RCO2, DOS = dodecyl sulfate, and RCO2 = linear aliphatic carboxylate or dialkoxy- or trialkoxybenzoate) were studied in the temperature range 6-400 K. All of the compounds exhibit a strong zero-field splitting (D = ca. 75 cm-1), independent of the nature of the axial anion X or of the equatorial substituent R. In the X = RCO2 series an intermolecular antiferromagnetic (AF) interaction zJ = ca. -2 cm-1 was found, whereas in the case of an X = DOS analogue, this interaction is very weak (-0.2 cm-1). The X = Cl series shows three distinct types of interdimer magnetic exchange: very weak, moderate (|zJ| ≈ 2 cm-1), or strong (|zJ| > 10 cm-1). One representative complex in this series, Ru2(C4H9CO2)4Cl, has been structurally characterized by X-ray crystallography. Crystal data: tetragonal system, space group I42d, a = 14.137(3) Å, c = 26.246(5) Å, and Z = 8. Examination of the structures and magnetic behaviors suggests that the AF exchange in this series correlates with the Ru-Cl-Ru intermolecular angle; a qualitative explanation in terms of overlap of magnetic orbitals is proposed. Magnetic susceptibility measurements in the columnar mesophase of the mesomorphic congeners indicate that no significant structural change occurs at the crystal-liquid crystal transition.
Registro:
| Documento: | Artículo |
| Título: | Mixed-Valent Diruthenium Long-Chain Carboxylates. 2. Magnetic Properties |
| Autor: | Cukiernik, F.D.; Luneau, D.; Marchon, J.-C.; Maldivi, P. |
| Filiación: | Dept. Rech. Fond. Sur Matiere Cond., Lab. de Chimie de Coordination, CEA-Grenoble, 17 Rue des Martyrs, 38054 Grenoble Cedex 9, France Depto. de Quim. Inorgánica, Fac. de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Nuñez (1428) Capital Federal, Argentina |
| Año: | 1998 |
| Volumen: | 37 |
| Número: | 15 |
| Página de inicio: | 3698 |
| Página de fin: | 3704 |
| Título revista: | Inorganic Chemistry |
| Título revista abreviado: | Inorg. Chem. |
| ISSN: | 00201669 |
| CODEN: | INOCA |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00201669_v37_n15_p3698_Cukiernik |
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Citas:
---------- APA ----------
Cukiernik, F.D., Luneau, D., Marchon, J.-C. & Maldivi, P. (1998) . Mixed-Valent Diruthenium Long-Chain Carboxylates. 2. Magnetic Properties. Inorganic Chemistry, 37(15), 3698-3704.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00201669_v37_n15_p3698_Cukiernik [ ]
---------- CHICAGO ----------
Cukiernik, F.D., Luneau, D., Marchon, J.-C., Maldivi, P. "Mixed-Valent Diruthenium Long-Chain Carboxylates. 2. Magnetic Properties" . Inorganic Chemistry 37, no. 15 (1998) : 3698-3704.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00201669_v37_n15_p3698_Cukiernik [ ]
---------- MLA ----------
Cukiernik, F.D., Luneau, D., Marchon, J.-C., Maldivi, P. "Mixed-Valent Diruthenium Long-Chain Carboxylates. 2. Magnetic Properties" . Inorganic Chemistry, vol. 37, no. 15, 1998, pp. 3698-3704.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00201669_v37_n15_p3698_Cukiernik [ ]
---------- VANCOUVER ----------
Cukiernik, F.D., Luneau, D., Marchon, J.-C., Maldivi, P. Mixed-Valent Diruthenium Long-Chain Carboxylates. 2. Magnetic Properties. Inorg. Chem. 1998;37(15):3698-3704.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00201669_v37_n15_p3698_Cukiernik [ ]
