What data do you have ? i'm assuming you have a series of rates, at a series of concentrations, and a rate law, or a means to find one . for a simple unimolecular first order reaction A-> B, the rate law is:
32.
Although the net formula for a decomposition or isomerization appears to be unimolecular and suggests first-order kinetics in the reactant, the Lindemann mechanism shows that the unimolecular reaction step is preceded by a bimolecular activation step so that the kinetics may actually be second-order in certain cases.
33.
Although the net formula for a decomposition or isomerization appears to be unimolecular and suggests first-order kinetics in the reactant, the Lindemann mechanism shows that the unimolecular reaction step is preceded by a bimolecular activation step so that the kinetics may actually be second-order in certain cases.
34.
Until recently entirely theoretical, the Aviram-Ratner model for a unimolecular rectifier has been confirmed unambiguously in experiments by a group led by Geoffrey J . Ashwell at Bangor University, UK . Many rectifying molecules have so far been identified, and the number and efficiency of these systems is growing rapidly.
35.
The activated intermediate is produced from the reactant only after a sufficient activation energy is acquired by collision with a second molecule M, which may or may not be similar to A . It then either deactivates from A * back to A by another collision, or reacts in a unimolecular step to produce the product ( s ) P.
36.
In the late 1970s three research groups in England, the United States, and France independently provided evidence for the occurrence of ion-neutral complexes ( sometimes called "'ion-dipole complexes "'or "'ion-molecule complexes "') in the unimolecular dissociations of positive ions under the conditions associated with mass spectrometry ( i . e . as isolated species in a vacuum ).
37.
"' Structures for lossless ion manipulations "'( SLIM ) are a new form of ion optics, developed by Richard D . Smith and coworkers at PNNL, and generally fabricated from arrays of electrodes on evenly spaced planar surfaces, to which various rf and dc electric potentials can be applied, and used to enable a broad range of ion manipulations, such as separations based upon ion mobility spectrometry, reactions ( unimolecular, ion-molecule, and ion-ion ), and storage ( i . e . ion trapping ).
