Issue 1, 2023

An exchange coupled mesomeso linked vanadyl porphyrin dimer for quantum information processing

Abstract

We report here the synthesis of a new mesomeso (mm) singly linked vanadyl–porphyrin dimer that crystallizes in two different pseudo-polymorphs. The single crystal continuous-wave electron paramagnetic resonance investigation evidences a small but crucial isotropic exchange interaction, J, between the two tilted, and thus distinguishable, spin centers of the order of 10−2 cm−1. The experimental and DFT studies evidence a correlation between J values and porphyrin plane tilting angle and distortion. Pulsed EPR analysis shows that the two vanadyl dimers maintain the coherence time of the monomer. With the obtained spin Hamiltonian parameters, we identify suitable transitions that could be used as computational basis states. Our results, coupled with the evaporability of porphyrin systems, establish this class of dimers as extremely promising for quantum information processing applications.

Graphical abstract: An exchange coupled meso–meso linked vanadyl porphyrin dimer for quantum information processing

Associated articles

Supplementary files

Article information

Article type
Edge Article
Submitted
06 9月 2022
Accepted
13 11月 2022
First published
14 11月 2022
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2023,14, 61-69

An exchange coupled mesomeso linked vanadyl porphyrin dimer for quantum information processing

D. Ranieri, F. Santanni, A. Privitera, A. Albino, E. Salvadori, M. Chiesa, F. Totti, L. Sorace and R. Sessoli, Chem. Sci., 2023, 14, 61 DOI: 10.1039/D2SC04969D

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