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Carving 1D CoII-carboranylcarboxylate system by organic solvents creating stable trinuclear molecular analogous: complete structural and magnetic studies

This work presents a straightforward methodology to achieve small linear trinuclear molecules based on the CoII-carboranylcarboxylate system obtained by carving a 1D polynuclear analogous system with the use of diethylether. The reaction of the carboranylcarboxylic ligand, 1-CH3-2-CO2H-1,2-closo-C2B10H10 (LH) with different cobalt salts leads to the polynuclear compound [Co2(μ-H2O)(1-CH3-2-CO2-1,2-closo- C2B10H10)4(THF)4], 1 and the polymeric [Co(μ-H2O)(1-CH3-2-CO2-1,2-closo-C2B10H10)2]n(H2O)n 2. This latter 1D chain has been obtained by an unprecedented synthetic strategy for the isolation of cobalt(II) compounds.[Co3(μ-H2O)2(1-CH3-2-CO2-1,2-closo-C2B10H10)6(H2O)2(C4H10O)2], 3 is formed by the dissociation of the polymeric structure that forms 2 when a mild coordinating solvent such as diethylether is added. These compounds have been characterized by analytical and spectroscopic techniques. X-ray analysis of 1 and 3 revealed that 1 presents a dinuclear structure whereas 3 is trinuclear; in both cases a six-coordinated CoII compound with water molecules bridging each of the two CoII centres has been observed. The magnetic properties of 1 and 3 show a weak antiferromagnetic behaviour, respectively, between the CoII centres mediated by two carboxylate ligands and a molecule of water

© Dalton Transactions, 2016, vol. 45, núm. 27, p. 10916-10927

Royal Society of Chemistry (RSC)

Manager: Generalitat de Catalunya. Agència de Gestió d’Ajuts Universitaris i de Recerca
Ministerio de Ciencia e Innovación (Espanya)
Author: Fontanet, Mònica
Rodríguez Pizarro, Montserrat
Fontrodona, Xavier
Romero García, Isabel
Teixidor Bombardó, Francesc
Viñas, Clara
Aliaga Alcalde, Núria
Date: 2016 July 21
Abstract: This work presents a straightforward methodology to achieve small linear trinuclear molecules based on the CoII-carboranylcarboxylate system obtained by carving a 1D polynuclear analogous system with the use of diethylether. The reaction of the carboranylcarboxylic ligand, 1-CH3-2-CO2H-1,2-closo-C2B10H10 (LH) with different cobalt salts leads to the polynuclear compound [Co2(μ-H2O)(1-CH3-2-CO2-1,2-closo- C2B10H10)4(THF)4], 1 and the polymeric [Co(μ-H2O)(1-CH3-2-CO2-1,2-closo-C2B10H10)2]n(H2O)n 2. This latter 1D chain has been obtained by an unprecedented synthetic strategy for the isolation of cobalt(II) compounds.[Co3(μ-H2O)2(1-CH3-2-CO2-1,2-closo-C2B10H10)6(H2O)2(C4H10O)2], 3 is formed by the dissociation of the polymeric structure that forms 2 when a mild coordinating solvent such as diethylether is added. These compounds have been characterized by analytical and spectroscopic techniques. X-ray analysis of 1 and 3 revealed that 1 presents a dinuclear structure whereas 3 is trinuclear; in both cases a six-coordinated CoII compound with water molecules bridging each of the two CoII centres has been observed. The magnetic properties of 1 and 3 show a weak antiferromagnetic behaviour, respectively, between the CoII centres mediated by two carboxylate ligands and a molecule of water
Format: application/pdf
Citation: 025391
ISSN: 1477-9226 (versió paper)
1477-9234 (versió electrònica)
Document access: http://hdl.handle.net/10256/12630
Language: eng
Publisher: Royal Society of Chemistry (RSC)
Collection: AGAUR/2014-2016/2014 SGR-149
MICINN/PN 2011-2014/CTQ2010-21532-C02-01
Reproducció digital del document publicat a: http://dx.doi.org/10.1039/c6dt01744d
Articles publicats (D-Q)
Is part of: © Dalton Transactions, 2016, vol. 45, núm. 27, p. 10916-10927
Rights: Reconeixement-NoComercial 3.0 Espanya
Rights URI: http://creativecommons.org/licenses/by-nc/3.0/deed.ca
Title: Carving 1D CoII-carboranylcarboxylate system by organic solvents creating stable trinuclear molecular analogous: complete structural and magnetic studies
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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