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Distance measurement of a noncovalently bound Y@C82 pair with double electron electron resonance spectroscopy

Distance measurement of a noncovalently bound Y@C82 pair with double electron electron resonance spectroscopy

Gil-Ramírez, Guzmán ORCID: 0000-0001-7945-2533, Shah, Anokhi, El Mkami, Hassane, Porfyrakis, Kyriakos ORCID: 0000-0003-1364-0261, Briggs, G. Andrew D., Morton, John J. L., Anderson, Harry L. ORCID: 0000-0002-1801-8132 and Lovett, Janet E. ORCID: 0000-0002-3561-450X (2018) Distance measurement of a noncovalently bound Y@C82 pair with double electron electron resonance spectroscopy. Journal of the American Chemical Society, 140 (24). pp. 7420-7424. ISSN 0002-7863 (Print), 1520-5126 (Online) (doi:https://doi.org/10.1021/jacs.8b03889)

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Abstract

Paramagnetic endohedral fullerenes with long spin coherence times, such as N@C60 and Y@C82, are being explored as potential spin quantum bits (qubits). Their use for quantum information processing requires a way to hold them in fixed spatial arrangements. Here we report the synthesis of a porphyrinbased two-site receptor 1, offering a rigid structure that binds spin-active fullerenes (Y@C82) at a center-to-center distance of 5.0 nm, predicted from molecular simulations. The spin-spin dipolar coupling was measured with the pulsed EPR spectroscopy technique of double electron electron resonance (DEER) and analysed to give a distance of 4.87 nm with a small distribution of distances.

Item Type: Article
Uncontrolled Keywords: DEER, metallofullerenes, distance measurement
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Department of Engineering Science
Last Modified: 15 Oct 2019 11:50
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
URI: http://gala.gre.ac.uk/id/eprint/25571

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