C2.3b Draw and analyze a diagram to show the activation energy for an exothermicreaction that is very slow at room temperature.Big Idea - The higher the temperature the faster the molecules are converting to a new substance, reducing the rate of a reaction.Examples: Looking at graphs and ...
In an article published this week inAPL Materials, by AIP Publishing, Luan and his collaborators tested a molecular energy harvesting device that captures the energy from the natural motion of molecules in a liquid. Their work showed molecular motion can be used to generate a stable electric curr...
The movement of molecules across membranes is discussed in terms of thermal fluctuations in the hydrocarbon chains of the membrane lipids. The thermal motion of the hydrocarbon chains results in the formation of conformational isomers, so-called kink-isomers of the hydrocarbon chains. "Kinks" may be...
Here, we report on the controlled manipulation of molecules using deep periodic optical lattice potentials (22 K) created by intense optical fields (1011 W cm−2). By using the oscillatory motion of nitric oxide molecules in these potentials, we have demonstrated rapid deceleration or ...
We investigate the diffusion and the drift motion of λ DNA molecules near solid-state nanopores prior to their translocation through the nanopores using fluorescence microscopy. The radial dependence of the electric field near a nanopore generated by an applied voltage in ionic solution can be estima...
Azobenzene based molecules have the property of isomerizing when illuminated. In relation with that photoisomerization property, azobenzene containing materials are the subject of unexplained massive mass transport. In this work we use an idealised rectangular chromophore model to study the dependence of th...
In the theoretical descriptions of natural and magneto-optical activity it is customary to average classically over molecular orientations. We develop a theoretical description of the two phenomena that includes the correct quantum mechanical representation of the rotational motion in order to find out ...
The spectra of enclathrated benzene molecules showed a motional narrowing. A gradual change in the line width with temperature was observed for both aniline and pyrrole clathrates. Thiophene clathrate, however, exhibited no change in the line width. From these results, the motion of the guest ...
ESR measures the resonant absorption of microwaves between Zeeman split energy levels in an external magnetic fieldB. The rapid motion of molecules in a solution causes an averaging over the anisotropic terms in the spin Hamiltonian so that the resulting resonances arise from ...
> > Motion of the water molecules and phase transitions in Sr[Fe(CN)NO]*4HO studied by proton NMR]]>The mobility of the water molecules and the phase transitions in strontium nitroprusside (SrNP) have been studied by proton spin-lattice relaxation time and proton NMR spectra over a wide ...