Using individual molecules as conducting bridges for electrons offers opportunities when
investigating quantum phenomena that are not readily accessible from experiments …

Using scanning probe microscopy techniques, at low temperatures and in ultrahigh vacuum,
individual molecules adsorbed on surfaces can be probed with ultrahigh resolution to …

Controlling selectivity of reactions is an ongoing quest in chemistry. In this work, we
demonstrate reversible and selective bond formation and dissociation promoted by tip …

Scanning probe techniques can leverage atomically precise forces to sculpt matter at
surfaces, atom by atom. These forces have been applied quasi-statically to create surface …

Using atomic manipulation, one can dissociate, form and rearrange bonds, as well as alter
the conformation or charge state of molecules. The molecular structures of reactants …

Tautomerization, the interconversion between two constitutional molecular isomers, is
ubiquitous in nature, plays a major role in chemistry and is perceived as an ideal switch …

Keto-enol tautomerism, describing an equilibrium involving two tautomers with distinctive
structures, provides a promising platform for modulating nanoscale charge transport …

Chemical reactivity underlies our fundamental understanding of many physical and
biological phenomena. Chemical reactions are typically initiated by heat, electric current or …

Tautomerization in porphycenes, constitutional isomers of porphyrins, is strongly entangled
with spectral and photophysical parameters. The intramolecular double hydrogen transfer …

The hydrogen bond represents a fundamental interaction widely existing in nature, which
plays a key role in chemical, physical and biochemical processes. However, hydrogen bond …