Dark molecular isomers lit up using optical cavities

In chemistry, molecules are manipulated by changing the constituent atoms, or their arrangements. Now a group of physicists and chemists from The City College of New York and Spain can demonstrate how the use of an optical ...

A world first in circadian clock manipulation

The Nagoya University Institute of Transformative Bio-Molecules (WPI-ITbM) research team of Designated Associate Professor Tsuyoshi Hirota, Postdoctoral Fellow Simon Miller, Professor Kenichiro Itami and graduate student ...

High pressure causes hydrogen variants to collapse

Hydrogen exists as a gaseous compound of two hydrogen atoms (H2). Under normal laboratory conditions, H2 occurs in the variants "ortho hydrogen" and "para hydrogen." Until now, it has been unclear how these variants behave ...

A chemical embrace from the perfect host

An industrial process that currently consumes vast amounts of energy in petrochemical plants around the globe could be replaced by an alternative process so efficient that it requires no heating or elevated pressure.

Driving chemical reactions with light

The chemistry of photosynthesis is still poorly understood. However, researchers from Johannes Gutenberg University Mainz (JGU) in Germany and Rice University in Houston have now uncovered a major piece of the puzzle. Their ...

Plausibility of the vibrational theory of smell

The vibrational theory of olfaction explains several aspects of odorant detection that theories based purely on receptor binding do not. It provides for additional selectivity through receptors that are tuned to specific ...

Flexible nanosensors for wearable devices

A new method developed at the Institute of Optoelectronics Systems and Microtechnology (ISOM) from the Universidad Politécnica de Madrid (UPM) will enable the fabrication of optical nanosensors capable of sticking on uneven ...

Water caged in buckyballs

In a new paper in the Journal of Chemical Physics, a research team in the United Kingdom and the United States describes how water molecules "caged" in fullerene spheres ("buckyballs") are providing a deeper insight into ...

page 1 from 3

Isomer

In chemistry, isomers (from Greek ἰσομερής, isomerès; isos = "equal", méros = "part") are compounds with the same molecular formula but different structural formulas. Isomers do not necessarily share similar properties, unless they also have the same functional groups. There are many different classes of isomers, like stereoisomers, enantiomers, geometrical isomers, etc. (see chart below). There are two main forms of isomerism: structural isomerism and stereoisomerism (spatial isomerism).

This text uses material from Wikipedia, licensed under CC BY-SA