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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Structural versatility driven by the flexible di(4-pyridyl) sulfide ligand: From cobalt(II) single-ion magnets to sheet-like copper(II) weak antiferromagnets

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Reis, V, Natalia ; Marinho, Maria Vanda [1] ; Simoes, Tatiana Renata G. [2] ; Metz, Karina C. [2] ; Vaz, Raphael C. A. [3] ; Oliveira, Willian X. C. [3] ; Pereira, Cynthia L. M. [3] ; Barros, Wdeson P. [4] ; Pinheiro, Carlos B. [5] ; Giese, Siddhartha O. K. [2] ; Hughes, David L. [6] ; Pirota, Kleber R. [7] ; Nunes, Wallace C. [8] ; Stumpf, Humberto O. [3]
Total Authors: 14
[1] Univ Fed Alfenas, Inst Quim, BR-37130001 Alfenas, MG - Brazil
[2] Univ Fed Parana, Dept Quim, BR-81531980 Curitiba, Parana - Brazil
[3] Reis, Natalia, V, Univ Fed Minas Gerais, Dept Quim, ICEx, BR-31270901 Belo Horizonte, MG - Brazil
[4] Univ Estadual Campinas, Inst Quim, BR-13083970 Campinas, SP - Brazil
[5] Univ Fed Minas Gerais, Dept Fis, ICEx, BR-31270901 Belo Horizonte, MG - Brazil
[6] Univ East Anglia, Sch Chem, Norwich NR4 7TJ, Norfolk - England
[7] Univ Estadual Campinas, Inst Fis Gleb Wataghin, Dept Fis Mat Condensada, BR-13083970 Campinas, SP - Brazil
[8] Univ Fed Fluminense, Inst Fis, Av Gal Milton Tavares de Souza S-N, BR-24210346 Niteroi, RJ - Brazil
Total Affiliations: 8
Document type: Journal article
Source: Polyhedron; v. 171, p. 203-211, OCT 1 2019.
Web of Science Citations: 1

The reaction between the ligand di(4-pyridyl)sulfide (dps) and two salts of divalent first row transition metals (M = Co2+, and Cu2+) resulted in three new compounds with formula: {[}Co(dps)(4)(H2O)(2)](ClO4)(2)center dot H2O (1), {[}Cu(dps)(2)(dmso)(2)](n)(ClO4)(2n) (2) and {[}[Cu(dps)(2)(dmso)(2)][Cu(dps)(2)(dmso)(H2O)]](n)(ClO4)(4n)center dot 2nH(2)O center dot n(dmso) (3). Crystal structures of 1-3 were determined using single-crystal X-ray diffraction. Crystal structure of 1 consists of a mononuclear complex, in which the dps ligand acts in a monodentate mode through one of the pyridyl nitrogen atoms. Compounds 2 and 3 present the dps ligands bridging metal centers leading to bidimensional coordination polymers. Magnetic properties in the polycrystalline samples of 1-3 in the 300-2 K temperature range were investigated. Complex 1 exhibits a field-induced slow magnetization behavior and behaves as a single-ion magnet with an effective energy barrier for the reversal of magnetization of 22.9 (1.1) K and tau(0) = 5.3(1.2) x 10(-7) s. (C) 2019 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 15/22379-7 - Multifunctional molecular magnetic systems: synthesis and study of magnetic, luminescent and photorreactive properties of polinuclear complexes containing transition and lanthanide metal ions
Grantee:Wdeson Pereira Barros
Support type: Regular Research Grants