Yes, the Lewis structure of NO2- can have resonance structures. This means that the double bond between the nitrogen and one of the oxygen atoms can be moved to form a double bond between the nitrogen and the other oxygen atom. However, the overall arrangement of atoms and the number of...
Studies on charge transfer complexes of group VIII metal acetylacetates with heterocyclic N-bases has been carried out using infrared and proton magnetic resonance analysis. Due to complexation, the effect of stretching frequency of Pt (NO2-acac) 2, have been studied and discussed for the site ...
The lesser electron withdrawing via induction may let the resonance effect govern the chemical shifts of C(2–5), so that a downfield chemical shift of C(3,4) and an upfield chemical shift of C(2,5) may result. It would help confirm the hypothesis we proposed earlier. Further, while ...
Crystal structure and electronic, infrared, Raman and resonance Raman spectra of the mixed-valence, halogen-bridged, anion-chain complexes Cs2[PtII(NO2)(NH... Electronic, Raman, and resonance Raman (r.R.) spectra of the mixed-valence anion-chain complexes M2[Pt(L)X3][Pt(L)X5](M = K...
Hence, when such a heteroatom is in the ortho or para position, the electron-donating properties of the NH2 group may be enhanced and the resonance effect strengthened, which, as can be seen from the negative Erel values (Figure 4), also stabilizes the molecule. On the other hand, the ...
In natural resonance theory (NRT) [40,41,42,43] terms, such a nB→σ*AH interaction represents resonance mixing between the parent natural Lewis structure (NLS) I and the secondary “charge–transfer” resonance structure II (with respective NRT weightings wI and wII): B:···H—A ...
Table 1. Selected experimental and calculated (B3LYP/6-311++g(d,p)) vibrational frequencies in the infrared spectra of new azoimine-pyrazole derivatives Azo1 to Azo4. 2.2.2. Nuclear Magnetic Resonance (NMR) Spectroscopy The assignment of chemical shifts (in ppm) in the 1H-NMR spectra of ...