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Type: Artigo
Title: Formation Of A New Copper(ii) Dimer Through Heterocyclic Ligand Ring Opening Reaction: Supramolecular Features And Magnetic Properties
Author: Goncalves
Bruna Lisboa; Gervini
Vanessa Carratu; Claro Flores
Alex Fabiani; Pimentel Junior
Jorge Luiz; Bortoluzzi
Adailton Joao; Burrow
Robert Alan; Duarte
Rafael; da Silva
Robson Ricardo; de Menezes Vicenti
Juliano Rosa
Abstract: Two new compounds were synthesized and characterized in this work: the heterocycle (Z)-1-(4-(hydroxyimino)-3,5-dimethyl-1-(methylcarbamothioyl)-4,5-dihydro-1H-pyrazol-5-yl)-4- methylthiosemicarbazide and a copper(II) thiosemicarbazonato dimeric complex. Green prismatic single crystals of the dimer were obtained by the reaction of the heterocycle with copper(II) chloride dihydrate. Both compounds were essentially characterized by spectroscopic methods and X-ray diffraction crystallography. The crystal structures revealed molecules connected through supramolecular hydrogen bond interactions and copper(II) centers in a slightly distorted square-pyramidal environment. SQUID magnetometry performed for the dimer revealed both ferromagnetic and antiferromagnetic interactions in the studied complex, presenting a critical temperature of 19 K. (C) 2016 Elsevier B.V. All rights reserved.
Subject: Heterocycle
Crystal Structure
Editor: Elsevier Science BV
Rights: fechado
Identifier DOI: 10.1016/j.molstruc.2016.09.014
Date Issue: 2017
Appears in Collections:Unicamp - Artigos e Outros Documentos

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