Toledo, DominiqueAhumada, GuillermoManzur, CarolinaRoisnel, ThierryPeña, OctavioHamon, Jean-RenéPivan, Jean-YvesMoreno, Yanko2023-11-222023-11-222017-11Journal of Molecular Structure Volume 1146, Pages 213 - 22115 October 20170022-2860https://repositorio.unab.cl/xmlui/handle/ria/54026Indexación: ScopusWe report the synthesis, characterization, crystal and molecular structure as well as the spectroscopic, electrochemical and magnetic properties of an unexpected trinuclear copper(II) complex (1), made of three Cu(2-TTA)2 units (2-TTA = 2-thenoyltrifluoroacetone) bridged by two 4'-(3-methyl-2-thienyl)-4,2′:6′,4″-terpyridine (4-stpy) ligands. The central Cu(II) atom shows an octahedral geometry, while the lateral metal centers present a slightly distorted square pyramidal coordination sphere. It is suggested that the introduction of the relatively bulky substituent groups (2-thienyl and [sbnd]CF3) in the 2-TTA ligand are responsible of this uncommon coordination mode. The magnetic behavior of 1 is reported in terms of a combination of monomer and dimer units, leading to weak antiferromagnetic interaction (J = −1.93 cm−1). The cyclovoltammogram of 1 exhibits, in the cathodic potential region, three redox events due to Cu2+/Cu+ and Cu+/Cu0 redox couples and to the mono-electronic reduction of the 4-stpy ligand. © 2017 Elsevier B.V.en2-Thenoyltrifluoroacetonate4,2′:6′,4″-TerpyridineCopper(II) complexCrystal structureCyclic voltammetryMagnetic propertiesArtículoCC BY-NC-ND 4.0 DEED10.1016/j.molstruc.2017.05.108