Draw the Lewis structure for the carbonate ion, CO32-. How many resonance forms are possible? Draw them. For carbonate ion, CO32-, draw the Lewis structure (by counting valence electrons of each atom). Determine the: a. electron-domain geometry b. mole...
It is not possible to write a single Lewis structure forNO−2NO2−in which nitrogen has an octet and both bonds are equivalent. Instead, we use the concept ofresonance: if two or more Lewis structures with the same arrangement of atoms can be written for a molecule or ion, the actua...
Chemists explaining a molecule’s stability and reactivity often refer to the concepts of delocalization, resonance, and aromaticity. Resonance is commonly discussed within valence bond theory as the stabilizing effect of mixing different Lewis structures. Yet, most computational chemists work with delocal...
The characteristics of negative ion states formed by temporary electron attachment to adsorbed molecules depend on the environment of the molecule. Adsorption site effects on the energy positions and widths of the N 2 - 2 螤 g resonance are theoretically investigated for a nitrogen molecule adsorbed...
field are pulsed at a high frequency to produce monoenergetic ion bunches. The kinetic energy dependence is directly observed by referencing a phase-sensitive detector to a much lower frequency used to gate the r.f. pulses. The results for kinetic energy dependence of ion—molecule reactions in ...
Paramagnetic resonance refers to a technique that focuses on the interaction of an external magnetic field with unpaired electron spins in a molecule. It is distinguished from NMR by its higher sensitivity to electron spin flips, allowing for detailed structural information to be obtained from biologic...
reactions of organo-metal compoundsdoi:10.1002/chin.197401301ROBERT C. DUNBARJOHN F. ENNEVERJOHN P. JUN. FACKLERChemischer InformationsdienstR.L. Dunbar, J.F. Ennever, J.P. Fackler Jr., Ion cyclotron resonance study of ion- molecule reactions of volatile organometallic compounds, Inorganic ...
Carbocations are carbon atoms with a positive formal charge. Carbocations are important for synthesis in organic chemistry since this makes the carbon atom an electrophile and a site for an electrophilic attack. Being able to control the electro...
The most striking feature of this work is that the rate constant for proton transfer to CO 2 is substantially greater than the collision rate constant calculated from the usual Langevin polarization theory of ion—molecule reactions. The plausibility of this large rate constant is discussed in ...
While with the NMR method, the structure of a molecule manifests itself only as broadening and splitting of lines; with NQR measurements, the crystal structure is defined by resonance frequencies themselves. Since in NQR, there is a distinctively strong dependence of the spectral line width from...