Temperature-Dependent Spin-Driven Dimerization Determines the Ultrafast Dynamics of a Copper(II)-Bound Tripyrrindione Radical DOI Creative Commons
Anshu Kumar,

Benjamin Thompson,

Ritika Gautam

et al.

Published: Sept. 29, 2023

Radicals and other open-shell molecules play a central role in chemical transformations redox chemistry. While radicals are often highly reactive, stable radical systems desirable for range of potential applications ranging from materials chemistry catalysis to spintronics quantum information. Here we investigate the ultrafast properties system with temperature-dependent spin-tunable properties. This complex, Cu(II) hexaethyl tripyrrin-1,14-dione, accommodates unpaired electrons localized on both copper metal center tripyrrolic ligand. Two-dimensional electronic spectroscopy measurements tripyrrin-1,14-dione were collected at room temperature 77 K. At temperature, present as monomers have short, picosecond lifetimes. K, dimer form mediated by ferromagnetic anti-ferromagnetic coupling. reversible spin-driven dimerization changes optical system, generating long-lived excitonic states.

Language: Английский

Temperature-Dependent Spin-Driven Dimerization Determines the Ultrafast Dynamics of a Copper(II)-Bound Tripyrrindione Radical DOI Creative Commons
Anshu Kumar,

Benjamin Thompson,

Ritika Gautam

et al.

Published: Sept. 29, 2023

Radicals and other open-shell molecules play a central role in chemical transformations redox chemistry. While radicals are often highly reactive, stable radical systems desirable for range of potential applications ranging from materials chemistry catalysis to spintronics quantum information. Here we investigate the ultrafast properties system with temperature-dependent spin-tunable properties. This complex, Cu(II) hexaethyl tripyrrin-1,14-dione, accommodates unpaired electrons localized on both copper metal center tripyrrolic ligand. Two-dimensional electronic spectroscopy measurements tripyrrin-1,14-dione were collected at room temperature 77 K. At temperature, present as monomers have short, picosecond lifetimes. K, dimer form mediated by ferromagnetic anti-ferromagnetic coupling. reversible spin-driven dimerization changes optical system, generating long-lived excitonic states.

Language: Английский

Citations

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