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Molecular Physics
An International Journal at the Interface Between Chemistry and Physics
Volume 111, 2013 - Issue 18-19: Modern EPR Spectroscopy
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Invited Articles

Quantum coherence in a triangular Cu3 complex

, , , &
Pages 2897-2902 | Received 26 Feb 2013, Accepted 24 Jun 2013, Published online: 02 Sep 2013
 

Abstract

We report pulsed electron paramagnetic resonance investigations on [(CuL)3(OH)](ClO4)2 · H2O, where HL = (E)-2-((3-(methylamino)propylimino) methyl)phenol, to assess its suitability as a qubit. We measured spin-lattice relaxation times up to T1 = 698(2) μs at 5 K in methanolic frozen solution. The spin-lattice relaxation is driven by the direct process. The phase memory time was determined to be up to Tm = 1290(3) ns in methanolic frozen solution and Tm = 392(5) ns in powder at 5 K, respectively. By means of both continuous waves and pulsed ENDOR spectroscopy, interactions to protons, nitrogen and copper nuclei were observed. The couplings to the protons were shown to be due to dipolar and through bond interactions.

Acknowledgements

We thank Prof. E. Roduner for allowing us to use his EPR spectrometers.

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