Quantum tunneling of hydrogen atoms (or protons) plays a crucial role in many chemical
and biological reactions. Although tunneling of a single particle has been examined …

Electronic self-decoupling of an organic chromophore from a metal substrate is achieved
using a naphtalenediimide cyclophane to spatially separate one chromophore unit of the …

We have studied electron transfer through redox molecules adsorbed on a conductive
substrate with scanning tunneling microscopy (STM) in aqueous solution. By adjusting the …

Understanding the single-molecule switching mechanism in densely packed, rationally
designed, and highly organized nanostructures is crucial for practical applications such as …

Single-molecule-resolved scanning tunneling microscopy of tetra-tert-butyl azobenzene
(TTB-AB) molecules adsorbed onto Au (111) reveals chirality selection rules in their …

Changing abruptly the potential between a scanning tunneling microscope tip and a
graphite substrate induces “high-conductance” spots at the molecular level in a monolayer …

A fullerene molecular tip was used to detect electron tunneling from a single porphyrin
molecule. Electron tunneling was found to occur locally from an electron-donating moiety of …

The electronic connection of single molecules to nanoelectrodes on a surface is a basic,
unsolved problem in the emerging field of molecular nanoelectronics. By means of variable …

Two-dimensional positioning of intact individual molecules was achieved at room
temperature by a controlled lateral “pushing” action of the tip of a scanning tunneling …

A new azopyridine functionalized Ni–porphyrin was synthesized as a model compound for
deposition and switch on surfaces. Two geometrically and electronically different states of …