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The Synthesis of [Sn10(Si(SiMe3)3)4]2- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique
Published on: November 28, 2016
A heterometallic (Ni(II)-Cu(II)) decanuclear cluster containing two distorted cubane-like pentanuclear cores:
Anindita Chakraborty1, Barindra Kumar Ghosh, Jordi Ribas-Arino
1Molecular Materials Laboratory, Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India.
Abstract:
A new heterometallic Ni(II)-Cu(II) decanuclear cluster, {[Ni(4)Cu(6)(μ-OH(2))(2)(dpkO(2))(8)(OAc)(4)(H(2)O)(4)]·2CH(3)OH·17H(2)O} (1), has been synthesized by self-assembly of the constituent metal ions and the precursor di-2-pyridylketone (dpk) of multinucleating ligand dpkO(2)(2-) and is structurally characterized. The cluster 1 is formed by the union of two symmetry-related distorted cubane-like pentanuclear cores. A magnetic study of 1 reveals strong antiferromagnetic interactions operating through the Ni-O-Ni pathway, which is independent of the assumption D = 0 or D ≠ 0. The pentanuclear cores are ferromagnetically coupled, as supported by density functional theory calculations.
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