However, there are also composite chiral objects in which none of the constituents is chiral by itself. Our hand, for example, is composed of atoms with no particular chirality, but it is nevertheless a chiral object, as we have learned earlier. The same is true for many molecules in which...
Search for a frequency difference in the spectrum of the enantiomers of chiral molecules: how to reach a sensitivity better than 10~(-14)?parity violationfrequency standardultra-high resolution spectroscopyinfrared molecular spectroscopyA series of two searches of a frequency difference in the ...
A carbon atom has the four valence electrons and so it can attach to four atoms at a given time. When such a carbon atom is attached to four different groups at the same time, this carbon atom is known as a chiral carbon or asymmetric carbon. This atom has a center through which it ...
At higher temperatures, they shift to a different phase (known as chiral/cholesteric), and start to show shifting colors (sometimes called "color play") as they get hotter. At a certain higher temperature, known as the clearing point, the molecules stop behaving like liquid crystals altogether...
In this phase, the molecules twist slightly from one layer to the next, resulting in a spiral formation. Ferroelectric liquid crystals (FLCs) use liquid crystal substances that have chiral molecules in a smectic C type of arrangement because the spiral nature of these molecules allows the micro...
Swapping any two groups on a chiral center inverts its absolute configuration (RtoS,StoR): Notice that these are different molecules. We are not talking about rotating about an axis or a single bond, in which case the absolute configuration(s) must stay the same. We are actually converting ...
Molecules with the same molecular formula, but different structural or spatial arrangements of the atoms are called isomers in organic chemistry. Two main types of isomers are structural isomers and stereoisomers. Structural isomers can be categorized into three main subgroups: chain isomers, posi...
This path apparently resembles an armchair, and hence the name has been given. A third kind called chiral falls between the two forms, together with its mirror image. If a knife is used to slice through such tubes twice horizontally against the lengthwise axis, a “belt” of nanotubes, ...
Answer to: Compare b-D-ribose with b-D-2-deoxyribose. How many chiral carbons are there in these latter two sugars ( ribose first ) ? A) 2, 1 B)...
Despite China's absence from this summer's World Cup Finals, the world's most populous nation is challenging for the number one spot in one aspect of football. A new study by the University of Sheffield has found that China has more statues depicting foo