The preparation, crystal structures, and magnetic properties of two rhenium(IV) mononuclear compounds of formula NBu4[ReX5(DMF)](NBu4+ = tetrabutylammonium cation and DMF = N, N-dimethylformamide) with X = Cl (1) and Br (2) are reported. 1 and 2 are isostructural complexes which crystallize in the monoclinic system with the space group P2(1)/n. The rhenium atom is six-coordinated with five X atoms and a DMF molecule forming a somewhat distorted octahedral surrounding [values of Re X varying in the ranges 2.317(1)-2.358(1) (1) and 2.495(1)-2.518(1) angstrom (2)]. Magnetic susceptibility measurements on samples of 1 and 2 in the temperature range 1.9-300 K are interpreted in terms of magnetically isolated spin quartets with large values of the zero-field-splitting (vertical bar 2D vertical bar is ca. 20.2 and 39.2 cm(-1) for 1 and 2, respectively).
Ligand Substitution in Hexahalorhenate(IV) Complexes: Synthesis, Crystal Structures and Magnetic Properties of NBu4[ReX5(DMF)] (X = Cl and Br) / J., MARTINEZ LILLO; Armentano, Donatella; DE MUNNO, Giovanni; F., Lloret; M. JULVE AND J., Faus. - In: INORGANICA CHIMICA ACTA. - ISSN 0020-1693. - 359(2006), pp. 3291-3296.
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Titolo: | Ligand Substitution in Hexahalorhenate(IV) Complexes: Synthesis, Crystal Structures and Magnetic Properties of NBu4[ReX5(DMF)] (X = Cl and Br) |
Autori: | |
Data di pubblicazione: | 2006 |
Rivista: | |
Citazione: | Ligand Substitution in Hexahalorhenate(IV) Complexes: Synthesis, Crystal Structures and Magnetic Properties of NBu4[ReX5(DMF)] (X = Cl and Br) / J., MARTINEZ LILLO; Armentano, Donatella; DE MUNNO, Giovanni; F., Lloret; M. JULVE AND J., Faus. - In: INORGANICA CHIMICA ACTA. - ISSN 0020-1693. - 359(2006), pp. 3291-3296. |
Handle: | http://hdl.handle.net/20.500.11770/129601 |
Appare nelle tipologie: | 1.1 Articolo in rivista |