Spectroscopic studies on the interaction of cimetidine drug with biologically significant σ- and π-acceptors

Synthesis and Complexation of Well-Defined Labeled Poly(N,N-dimethylaminoethyl methacrylate)s (PDMAEMA)

“…Polymers 2015, 7, page-page 10 After quaternization, the copolymers show different absorption spectra: first, an additional signal at 290 nm can be seen which, according to literature, can be attributed to the presence of I3 − (absorption maxima at 290 and 360 nm) [50][51][52][53][54][55]. Second, the absorption band of the dye is shifted to higher λmax.…”

Nanostructured products of the drug theophylline caused by charge transfer interactions and a binary solvent system: Morphology and nanometry

“…The formed products were isolated, filtered and further purified using the solvent system and a recrystallization process to obtain the pure products. The products were then collected and dried in vacuo for 48 h. The nanoparticles were characterized by spectroscopy (UV-vis, IR, 1 H and 13 …”

“…During the last decade, considerable efforts have focused on the interactions between drugs and acceptors both in the solid state and in solution. Such interactions play crucial roles in many processes; therefore, understanding these interactions is important for understanding the drug-receptor binding and the drug's mechanism of action as well as obtaining quantitative estimates of the drugs [10][11][12][13][14][15][16][17][18]. To investigate these roles more fully, the physical and chemical properties of the drug-acceptor complexes can be enhanced if the complexes are prepared on the nanoscale, and the use of a binary solvent system can help to achieve this goal.…”

Structural characterization of molecular complexes formed by trimethoprim and cimitidine with 2,3,5,6-tetrachloro-1,4-benzoquinone

“…Out of the many applications of molecular complexes, one important application is to calculate the ionization potential of the donor. The ionization potential (Ip) of the highest filled molecular orbital of the donor was estimated from CT energies of its complex with the acceptor making use of the empirical equations reported by Aloisi and Pignataro [22][23][24] The dissociation energies of the complexes were calculated as described earlier [25] and the calculated values of W (Table 6) suggested that the investigated complex is reasonably strong and stable under the studied conditions with higher resonance stabilization energy [26,27].…”