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Molecular electronic spin qubits from a spin-frustrated trinuclear copper complex

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Abstract

The trinuclear copper(II) complex [Cu3(saltag)(py)6]ClO4 (H5saltag = tris(2-hydroxybenzylidene)triaminoguanidine) was synthesized and characterized by experimental as well as theoretical methods. This complex exhibits a strong antiferromagnetic coupling (J = −298 cm−1) between the copper(II) ions, mediated by the N–N diazine bridges of the tritopic ligand, leading to a spin-frustrated system. This compound shows a T2 coherence time of 340 ns in frozen pyridine solution, which extends to 591 ns by changing the solvent to pyridine-d5. Hence, the presented compound is a promising candidate as a building block for molecular spintronics.

Graphical abstract: Molecular electronic spin qubits from a spin-frustrated trinuclear copper complex

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Publication details

The article was received on 19 Aug 2018, accepted on 02 Oct 2018 and first published on 02 Oct 2018


Article type: Communication
DOI: 10.1039/C8CC06741D
Citation: Chem. Commun., 2018, Advance Article
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    Molecular electronic spin qubits from a spin-frustrated trinuclear copper complex

    B. Kintzel, M. Böhme, J. Liu, A. Burkhardt, J. Mrozek, A. Buchholz, A. Ardavan and W. Plass, Chem. Commun., 2018, Advance Article , DOI: 10.1039/C8CC06741D

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