In contrast to atoms, molecules have a plethora of rovibrations throughout the spectrum offering the possibility of ultra-narrow spectroscopy, with a linewidth essentially proportional to gas pressure. For this reason, molecular cells based on photonic platforms are expected to find important application...
Water molecules are cohesive (stick together) and adhesive (stick to other substances). Both are important properties in the movement of water up the xylem of plants. High surface tension means that the water surface acts as a skin; this is very important in water being drawn...
Metal-organic frameworks (MOFs) are an emerging class of porous materials that have enormous potentials in gas separation1,2,3,4, catalysis5,6,7,8,9,10, drug delivery11,12,13,14,15, and energy storage16,17,18,19. Typically, MOFs are viewed as crystalline lattices with accessible regular...
0 Long-range molecules /rom Graham Richards VAN der Waals forces are normally thought of as attractive. They are the weak attractions which hold molecules together with a binding energy often following the sixth power of the inter- molecular separation. In fact this is only true for spherical ...
The hot temperatures are expected to turn these atmospheres into a (high pressure) steam bath containing remains of melted rock. The spectroscopy of these hot rocky objects will be very different from that of cooler objects or hot gas giants. Molecules suggested to be important for the ...
Thiocyanate may have played as important a role as cyanide in the synthesis of several molecules. However, its concentration in the seas of the prebiotic Earth could have been very low. Thiocyanate was dissolved in two different seawaters: a) a composition that comes close to the seawater of ...
The chance of two irises having the same features is close to zero. Tests have shown that iris-scanners are very hard to fool. They can tell the difference between a real iris and a false one. They can see right through colored contact lenses, eyeglasses, and even mirrored sunglasses. ...
which smell like rotten eggs.And molecules with very different structures can smell similar.Most strikingly, some molecules can smell different — to animals, if not necessarily to humans — simply because they contain different isotopes (atoms that are chemically identical but have a different mass...
Colloids have a rich history of being used as ‘big atoms’ mimicking real atoms to study crystallization, gelation and the glass transition of condensed matter. Emulating the dynamics of molecules, however, has remained elusive. Recent advances in collo
In the present study we place separate H2O molecules in the structural channels of a beryl single crystal so that they are located far enough to prevent hydrogen bonding, but close enough to keep the dipole–dipole interaction, resulting in incipient ferroelectricity in the water molecular subsystem...