Synthetic chemists have developed robust methods to synthesize discrete molecules, linear
and branched polymers, and disordered cross-linked networks. However, two-dimensional …

Graphene nanostructures (GNs) including graphene nanoribbons and nanoflakes have
attracted tremendous interest in the field of chemistry and materials science due to their …

Carbon allotropes built from rings of two-coordinate atoms, known as cyclo [n] carbons, have
fascinated chemists for many years, but until now they could not be isolated or structurally …

Atomic force microscopy (AFM) was introduced in 1986 and has since made its way into
surface science, nanoscience, chemistry, biology, and material science as an imaging and …

Triangulene, the smallest triplet-ground-state polybenzenoid (also known as Clar's
hydrocarbon), has been an enigmatic molecule ever since its existence was first …

Petroleum is one of the most precious and complex molecular mixtures existing. Because of
its chemical complexity, the solid component of crude oil, the asphaltenes, poses an …

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 …

Heavy oil molecular mixtures were investigated on the basis of single molecules resolved by
atomic force microscopy. The eight different samples analyzed include asphaltenes and …

N-Heterocyclic carbenes (NHCs) are established ligands for metal complexes and surfaces.
Here we go beyond monomeric NHCs and report on the synthesis of NHC polymers on gold …

Previously, asphaltene science had been hindered by many significant uncertainties
regarding molecular weight, molecular structure, and nanocolloidal characteristics in …