chiral molecule

chiral molecule,

another term for optical isomer. See Stereoisomers under isomerisomer
, in chemistry, one of two or more compounds having the same molecular formula but different structures (arrangements of atoms in the molecule). Isomerism is the occurrence of such compounds. Isomerism was first recognized by J. J. Berzelius in 1827.
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References in periodicals archive ?
For the first time, researchers have detected a chiral molecule, propylene oxide, in interstellar space.
and continues to prove, that the use of the correct chiral molecule can make all the difference in how effective an ingredient will be and, just as important, what reactions it will create.
Triple resonance for a three-level system of a chiral molecule Eizi HIROTA Communicated by Toshimitsu YAMAZAKI, M.
Whereas CD involves the ground state of a chiral molecule, CPL is emitted by a fluorophore if the excited state of the emitting species is chiral.
A mixture that is racemic contains a chiral molecule as well as its mirror image.
Both Hund's perturbation and parity violation terms are quite small for almost all the "stable" chiral molecules, in other words, the Hamiltonian of a chiral molecule is almost completely symmetric with respect to inversion, and the measurement of optical rotation has so far been nearly the only way to differentiate enantiomers.
This year's Nobel Laureates in Chemistry have developed molecules that can catalyse important reactions so that only one of the two mirror image forms of a chiral molecule is produced.
As a result, it is frequently only one of the two mirror-image forms of a chiral molecule that provides the desired therapeutic results.
5 fs later this year); full polarization control has been introduced, so we can see chiral molecules that are important for many pharmaceutical drugs; and a wide array of dual-pulse options have been developed that provide the ability to drive a system and monitor its response on timescales that range from femtoseconds to microseconds.
Key objectives of this research program are the development of new strong activators for an efficient synthesis of chiral molecules and the training of future leading experts in the field of catalysis, a domain in which Europe must remain competitive in the 21st century as the demand for new chiral molecules and materials is increasing in domains ranging from health to energy.
These chiral molecules are essential to biology and life as we understand them, and have been found in meteorites on Earth, as well as in comets in the solar system.
The topics include crystal structure and prediction, coherence in energy transfer and photosynthesis, ultrafast dynamics of electrons in ammonia, the statistical mechanics of dynamic pathways to self-assembly, spintronics and chirality: spin selectivity in electron transport through chiral molecules, the advanced physical chemistry of carbon nanotubes, site-specific infrared probes of proteins, the time-domain ab initio modeling of photo-induced dynamics at nanoscale interfaces, the experimental implementation of two-dimensional Fourier transform electronic spectroscopy, and vibrational energy transport in molecules studied by relaxation-assisted two-dimensional infrared spectroscopy.