Distance Measurement of a Noncovalently Bound Y@C82 Pair with Double Electron Electron Resonance Spectroscopy

Guzmán Gil-Ramírez, Anokhi Shah, Hassane El Mkami, Kyriakos Porfyrakis, G. Andrew D. Briggs, John J. L. Morton, Harry Anderson, Janet Eleanor Lovett

Research output: Contribution to journalArticlepeer-review

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 porphyrin-based 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 and analyzed to give a distance of 4.87 nm with a small distribution of distances.
Original languageEnglish
Pages (from-to)7420–7424
Number of pages5
JournalJournal of the American Chemical Society
Volume140
Early online date2 Jun 2018
DOIs
Publication statusPublished - 20 Jun 2018

Keywords

  • carbon nanomaterials
  • nanospheres
  • pyrroles
  • quantum mechanics
  • receptors

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