Abstract
Herewith, we synthesized the new oxazolidines (SP-1, SP-2 and SP-3) by without using any withdrawing or donating substitution, and for these molecules we demonstrated CO₂ sensing properties in naked eye condition with different colors (yellow and magenta). All the dyes showed different colors in the presence and absence of CO₂ in ethanol solution with the concept of ring closing and opening. In UV-visible absorption spectrum all the compounds showed visible light absorptions after purging of CO₂. To confirm this mechanism for SP-1 molecule case, we approached the 1H-NMR and 13C-NMR techniques deuterated methanol as a solvent and we clearly identified. The stability of the SP-1 molecule in ethanol for CO₂ purging case, we studied repeatability test up to ten cycles and we confirmed that there is no any decrease in sensing ability.
Published Version
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