Physics

Organic chemistry

Enzyme

Crystallography

Diradical

Excited state

Chemical physics

Intermolecular force

Nuclear physics

Chemistry

Materials science

Pentamer

Tetramer

Dimer

Molecule

Singlet state

Stacking

Biochemistry

Chem

Highly stable n-doped conductors based on quinoidal oligothiophenes are achieved. The suitable synergy between intra- and inter-molecular effects dictates the exceptional properties of 2DQQT. Uniquely, its incipient diradical character and cholesteric-like aggregation both enhance electrical conductivity (i.e., 14.0 S cm−1) and unprecedented air stability. At the molecular level, our findings demonstrate that small diradical character and deep LUMO energy levels, lower than −4.6 eV, are conditions suitable for achieving stable n-type doping.

Cholesteric Aggregation at the Quinoidal-to-Diradical Border Enabled Stable n-Doped Conductor