The static and frequency-dependent first-( β) and second-order ( γ) hyperpolarizabilities of 4-nitroaniline (PNA) (in the gas-phase and in aqueous solvent) were investigated through the sum-over-orbitals (SOO) formalism.doi:10.1016/S0166-1280(01)00481-XW. Bartkowiak...
The IR spectra of the crystalline complexes of 4-nitroaniline with crown ethers were studied, viz., 18-crown-6, benzo-18-crown-6, dibenzo-18-crown-6, dicyclohexano-18-crown-6 and dibenzo-24-crown-8. The hydrogen bonding interaction was found to be predominant in these complexes. The ...
In the case of second-order nonlinearities a very well-known prototype molecule is that of p-nitroaniline. The hyperpolarizability of this molecule is much bigger than that which could be deduced by combining results for nitrobenzene and aniline (see Table 1). This enhancement of the second-...
An analysis of the geometry of N,N-dimethyl-4-nitroaniline and its 3,5- and 2,6-dimethyl derivatives presents structural evidence against the classical concept of through-resonance(throughconjugation), according to which the most important contribution is the quinoid structure with full charge transf...
Werth CR, Hilu KW, Langner CA (1994) Isozymes of Eleusine (Gramineae) and the origin of finger millet. Am J Bot 81:1186-1197 Article CAS Google Scholar Yamamoto E, Baird WV (1999) Molecular characterization of four beta-tubulin genes from dinitroaniline susceptible and resistant biotypes ...
Despite the presence of this undesired side reaction, the resulting monolithic polymer showed long-term stability.98 PR polysilanes functionalized with N-methyl-p-nitroaniline, as shown in Figure 11, were designed. An optical gain coefficient of 18 cm − 1 was observed with the use of a ...
Fluorescence analysis is a fast and sensitive method, and has great potential application in trace detection of environmental toxins. However, many important environmental toxins are non-fluorescent substances, and it is still a challenge to construct a
N- Methyl-N,2,4,6-tetranitroaniline (XI) was synthesized by nitration fuming nitric of acid (dN425-m=e1th.5y2l-2g,4c-mdi!n3i)triona8n0il%inesulfwuirtihc acid. As an example, the procedure for the preparation of N-methyl-N,3,5-trinitroaniline (X) is given below. N-Methyl-3,...
select article Why ionic liquids coated ZnO nanocomposites emerging as environmental remediates: Enhanced photo-oxidation of 4-nitroaniline and encouraged antibacterial behavior Research articleAbstract only Why ionic liquids coated ZnO nanocomposites emerging as environmental remediates: Enhanced photo-oxidation...
The results show that proton removal can be used as a switch that modulates the NLO response within a wide range of values (159.15≤βHRS≤4393.97 au) greater than those reported for reference NLO chromophores like urea (37.3 au) and p-nitroaniline (74.3 au). Thermochemical analysis of ...