Ground and excited state properties of alizarin and its isomers

Organotitania‐Based Nanostructures as a Suitable Platform for the Implementation of Binary, Ternary, and Fuzzy Logic Systems

“…Therefore, adsorption of 1,4‐dhaq dye at metal oxide surfaces brings about changes similar to those observed during deprotonation of dyes (Figure ). These changes cannot result from dye aggregation, because in the case of 1,4‐dhaq this process induces a significant hypsochromic shift (rather than the observed bathochromic shift) …”

“…These changes cannotr esult from dye aggregation,b ecause in the case of 1,4-dhaqt his process induces as ignificant hypsochromic shift (rather than the observed bathochromic shift). [24] It can be observed, however,t hat the spectrumo ft he dye at the surface( sample 2)i sb athochromically shiftedi nr espect to other samples (2', 3 and 3'). This suggestsd ifferent binding modes of 1,4-dhaq moleculesi nt hese two cases.…”

Spectroscopic studies of keto–enol tautomeric equilibrium of azo dyes

“…Photoinduced tautomerism in which the excited state intramolecular proton transfer (ESIPT) reactions takes place, have also drawn a great deal of attention [2][3][4][5][6]. The studies on tautomerism depend on whether the migrating group is a proton or another entity or whether the study concerns the thermodynamic or the kinetic part, and it also depends on the medium.…”

Eco-friendly dyeing of wool and nylon using madder as a natural dye: kinetic and adsorption isotherm studies

“…Therefore, by the determination of type and quantity of these components, the madder plant species can be somewhat discovered. It was indicated that alizarin compound is present in the root of madder, and the most important properties of alizarin are to complex with various metallic mordants in dyeing process and produce lac colors, which are not soluble in a weak acid and alkali media (Clementi et al 2007;Mech et al 2014). …”