Radical qubits photo-generated in acene-based metal-organic frameworks

Kana Orihashi; Akio Yamauchi; Miku Inoue; Bhavesh Parmar; Saiya Fujiwara; Nobuo Kimizuka; Mizue Asada; Toshikazu Nakamura; Nobuhiro Yanai

doi:10.1039/d3dt03959e

Radical qubits photo-generated in acene-based metal-organic frameworks

Dalton Trans. 2024 Jan 16;53(3):872-876. doi: 10.1039/d3dt03959e.

Authors

Kana Orihashi¹, Akio Yamauchi¹, Miku Inoue¹, Bhavesh Parmar¹, Saiya Fujiwara², Nobuo Kimizuka¹, Mizue Asada³, Toshikazu Nakamura³, Nobuhiro Yanai^{1

4}

Affiliations

¹ Department of Applied Chemistry, Graduate School of Engineering, Center for Molecular Systems (CMS), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan. yanai@mail.cstm.kyushu-u.ac.jp.
² RIKEN Center for Emergent Matter Science, Riken, Wako, Saitama 351-0198, Japan.
³ Institute for Molecular Science, Nishigonaka 38, Myodaiji, Okazaki 444-8585, Japan.
⁴ FOREST, CREST, JST, Honcho 4-1-8, Kawaguchi, Saitama 332-0012, Japan.

PMID: 38164969
DOI: 10.1039/d3dt03959e

Abstract

A series of metal-organic frameworks (MOFs) assembled with diazatetracene (DAT)-based linkers were synthesized and characterized. Despite different chromophore orientations and spacings, photoinduced persistent radicals were generated in all the MOFs, and their spin-lattice relaxation time (T₁) and spin-spin relaxation time (T₂) were found to be relatively long even at room temperature. The generality of long T₁ and T₂ values of photogenerated radicals in the chromophore-assembled MOFs provides a new platform towards quantum sensing applications.