5). Actually, this is rather a non-classical carbocation that is stabilized by hyperconjugation (main resonance structure: (CH3)2C(+)CH=CHCH3), as concluded by the exclusive 1,4- polymerization of 2-methyl-1,3-pentadiene, under Lewis acid catalysis. http://onlinelibrary.wiley.com/doi/10.1...
The gas phase kinetics of CH3CCCH2 radical reactions with NO and NO2 have been studied in direct time-resolved measurements using temperature controlled flow tube reactors coupled to a laser photolysis/photoionization mass spectrometer. Rate coefficients of both reactions were observed to display ...
When you say no atom movements are allowed, which ones do you mean? I don't think I moved any atoms. The structure is still CH3CH2OCN for all of the ones i drew i think unless I'm thinking of something else. My guess atm is that the large formal charges on the nitrogen atom (...
Unfolding of the protein to obtain complete exchange should be performed only if the subsequent refolding results in complete regeneration of the functional protein structure (33). For the purposes of the following discussion, 1HN spins are assumed to be fully present at all amide sites. 9.1.2 ...
so what that would look like after i draw the resonance structure is i would now have a double bond here. i would have no electrons in the end because i just used those electrons to make the double bond. then instead of having two lone pairs, now i'd have ...
When two or more atoms come close together, the electrons in their atomic orbitals can interact and overlap, leading to the formation of molecular orbitals. Answer and Explanation: The carbonate ion (CO32−) has three resonance structures that can be ...
The Fermi resonance structure in the overtone spectra of the coupled CH stretching and in‐plane CH bending vibrations is analyzed with a tridiagonal Hamiltonian, yielding a large effective coupling constant, ‖k'sbb‖ =93 cm1, corresponding to subpicosecond redistribution times. No coupling between ...
Resonance: The delocalization of pi-electrons in the planar conjugated system is known as resonance. The different structures obtained by the delocalization of pi-electrons are known as resonating structures. Answer and Explanation:1 We are told to draw the resonating structures forO3. ...
The results conclusively support the above structures for the mercury compounds on the basis of observed area ratios and spin-spin hyperfine structure. The relative chemical shifts of the several types of methyl and methylene groups are in general accord with expectation from previous studies. 展开 ...
Synthesis and structure of acetonitrile solvates of copper(II) monofluoroacetate and silver(I) trifluoroacetate, [Cu2(CH2FCOO)4·2CH 3CN](CH3CN) and Ag3(CF... Compounds [Cu 2 (CH 2 FCOO) 4 · 2CH 3 CN](CH 3 CN) ( I ) and Ag 3 (CF 3 COO) 3 (CH 3 CN) 2 ( II ) were...