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

Authors :: Orihashi K
Yamauchi A
Inoue M
Parmar B
Fujiwara S
Kimizuka N
Asada M
Nakamura T
Yanai N
Source :: Dalton transactions (Cambridge, England : 2003) [Dalton Trans] 2024 Jan 16; Vol. 53 (3), pp. 872-876. Date of Electronic Publication: 2024 Jan 16.
Publication Year :: 2024
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 ( T <subscript>1</subscript> ) and spin-spin relaxation time ( T <subscript>2</subscript> ) were found to be relatively long even at room temperature. The generality of long T <subscript>1</subscript> and T <subscript>2</subscript> values of photogenerated radicals in the chromophore-assembled MOFs provides a new platform towards quantum sensing applications.