Category archives: Chemistry

Plasmonic nanocrystals-cellulose hybrid

Plasmonic nanocrystals-cellulose hybrid

ChemistryCondensed matterMaterials

By DIPC

When we consider the variety of possible wonder applications of plasmonic nanoparticles we usually forget a key aspect: how these laboratory results can be transformed into something really usable in everyday life. For that to occur some not-that-simple problems must be resolved first. For example, plasmonic nanoparticles exhibit excellent light-harvesting properties in the visible spectral […]

Controlling single molecule conductance with a new class of covalent bond formation

Controlling single molecule conductance with a new class of covalent bond formation

ChemistryMaterialsNanotechnology

By DIPC

One of the greatest inventions of the 20th century, if not the greatest, was the transistor. It revolutionized the electronics industry and changed the way people around the world lived, learned, worked, and played. Its invention marked the beginning of solid state electronics which quickly reduced the size and power requirements of existing electronic tube […]

How chirality information can transfer over long distances

How chirality information can transfer over long distances

ChemistryCondensed matterMaterialsNanotechnologyQuantum physics

By DIPC

Usually, optical activity is understood as the ability some substances have to change the handedness of polarized light when it goes through them. Molecules that show optical activity have no plane of symmetry. The commonest case of this is in organic compounds in which a carbon atom is linked to four different groups. An atom […]

Metal atoms enhance quantum dot coupling in metal-organic nanoporous networks

Metal atoms enhance quantum dot coupling in metal-organic nanoporous networks

ChemistryCondensed matterMaterialsQuantum physics

By DIPC

A quantum dot (QD) is a nanometric crystalline structure of semiconductor materials. In a QD electrons are confined in a region of space, thus creating a well defined structure of energy levels that depends very much on the size and shape of the quantum dot. This structure resembles that of atoms, that is why sometimes […]

Flavin bioorthogonal photocatalysis mechanism

Flavin bioorthogonal photocatalysis mechanism

Chemistry

By DIPC

A catalyst is a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change. As the catalyst itself takes part in the reaction it may undergo a physical change. Metal complexes are typically regarded as catalysts that convert organic substrates into more valuable compounds; however, to date, catalytic transformations […]

Tracking the tautomerization of a single molecule in space and time

Tracking the tautomerization of a single molecule in space and time

ChemistryCondensed matterNanotechnology

By DIPC

There are chemical compounds, called isomers, that have the same molecular formulae but different molecular structures or different arrangements of atoms in space. In constitutional isomerism the molecules have different molecular structures: i.e., they may be different types of compound, or they may simply differ in the position of the functional group in the molecule […]

Excited-state aromaticity

Excited-state aromaticity

ChemistryMaterials

By DIPC

We usually take for granted that aromaticity is something that belongs to the ground state of a molecule; but the fact is that nothing forbids aromaticity appearing in an excited state. In the same way that molecular properties are largely affected by the ground-state aromaticity, excited-state aromaticity can guide the understanding of excited-state processes, the […]