The pivotal role of non-covalent interactions in single-molecule charge transport

Abstract

Integrating multidisciplinary efforts from physics, chemistry, biology, and materials science, the field of single-molecule electronics has witnessed remarkable progress over the past two decades thanks to the development of single-molecule...

No More Conductance Decay: Toward Efficient Long-Range Transport in Molecular Wires

“…Recently, rapid advances in novel synthetic strategies to engineer noncovalent interactions have made the field of supramolecular chemistry flourish. The noncovalent intra- and intermolecular interactions, as a commonly appearing interactions governing chemical and biochemical processes such as DNA base pairing, molecule–substrate interactions, and self-assembly complexation have garnered increasing attention. − The influence of these long-range interactions, including hydrogen bonds, dipole–dipole interactions, steric repulsion, electrostatic interactions, and stacking interactions, on charge transport has also been investigated extensively at the single molecular level . When it comes to efficient charge transport with lower attenuation, the orbital coefficients at the contact sites play a significant role, as described in eq .…”

Molecular-Scale Electronics: From Individual Molecule Detection to the Application of Recognition Sensing

“…summarized the platform of SMJs for monitoring intermolecular interactions and chemical reactions, including hydrogen-bond interactions between small molecules, host–guest interactions between complex molecules, interactions between biological macromolecules, and regulation of chemical reactions through electric fields . Additionally, other researchers also extensively reviewed single molecule interaction and chemical reaction studies in SMJs. − This section of our discussion primarily focuses on molecular interactions and chemical reactions within double-molecule systems over the past two years as well as findings from our previous works.…”

Many‐body Effects on Electronic Transport in Molecular Junctions: A Quantum Perspective

“…Apart from the H-bond, the π-π stacking interaction has also been widely explored for the development of suitable chemical and bio-electronic materials. [23] The delocalization of electrons in the π-staked structure is found to be responsible for enhanced charge transport. The electron transport properties of π-π stacking interactions are sensitive to the conformation of the supramolecular structure and can change to a large extent owing to external perturbations.…”