Counter-complementarity control of the weak exchange interaction in a bent {Ni(ii)3 complex with a μ-phenoxide-μ-carboxylate double bridge

Fiorini G, Carrella L, Rentschler E, Albores P (2019)

Publication Type: Journal article

Publication year: 2019

Journal

New Journal of Chemistry Royal Society of Chemistry

Book Volume: 43

Pages Range: 16218-16225

Journal Issue: 41

DOI: 10.1039/c9nj03574e

Abstract

We have prepared and structurally characterized a novel {Ni3} bent complex bearing a double μ-phenoxide-μ-carboxylate bridge. Both terminal Ni(ii) sites are symmetry related, offering a simplified exchange interaction scheme. DC magnetic data is consistent with a weak antiferromagnetic interaction between the central and terminal Ni(ii) ions. As expected for a Ni(ii) system, local zero-field splitting is observed, which can be experimentally established. Broken symmetry quantum chemical calculations, as well as ab initio CASSCF-SA-SOC computations that support the magnetic experimental data, were also performed. From the analysis of other reported closely related Ni(ii) systems, a counter-complementarity effect exerted by the carboxylate bridge is proposed, which might explain the weaker exchange interactions compared to those observed in double μ-phenoxide bridged Ni(ii) compounds.

Involved external institutions

Universidad de Buenos Aires (UBA) / University of Buenos Aires AR Argentina (AR) Johannes Gutenberg-Universität Mainz (JGU) DE Germany (DE)

How to cite

APA:

Fiorini, G., Carrella, L., Rentschler, E., & Albores, P. (2019). Counter-complementarity control of the weak exchange interaction in a bent {Ni(ii)3 complex with a μ-phenoxide-μ-carboxylate double bridge. New Journal of Chemistry, 43(41), 16218-16225. https://doi.org/10.1039/c9nj03574e

MLA:

Fiorini, Guillermo, et al. "Counter-complementarity control of the weak exchange interaction in a bent {Ni(ii)3 complex with a μ-phenoxide-μ-carboxylate double bridge." New Journal of Chemistry 43.41 (2019): 16218-16225.

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