Coumarin-based benzilmonohydrazone as a new proton-sensitive fluorescencedye: synthesis and investigation of photophysical and acidochromic properties | Zendy

Burcu Aydıner | Zendy

Open Access

Coumarin-based benzilmonohydrazone as a new proton-sensitive fluorescencedye: synthesis and investigation of photophysical and acidochromic properties

Author(s) -

Burcu Aydıner

Publication year - 2019

Publication title -

turkish journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.239

H-Index - 46

eISSN - 1303-6130

pISSN - 1300-0527

DOI - 10.3906/kim-1902-38

Subject(s) - chemistry , protonation , trifluoroacetic acid , chromogenic , titration , coumarin , dichloromethane , fluorescence , time dependent density functional theory , photochemistry , proton nmr , absorption (acoustics) , solvent , organic chemistry , molecule , chromatography , physics , quantum mechanics , ion , acoustics

Coumarin-based chromogenic and fluorogenic dye 4 was designed and synthesized. The photophysical properties of 4 were determined in solvents with different polarities. Protonation affinity was determined by adding trifluoroacetic acid (TFA) to a dichloromethane solution of dye 4 utilizing the UV-Vis and fluorescence titration methods. The protonation region was investigated by using the 1 H NMR method. Additionally, DFT and TDDFT studies were performed to support the structural and absorption spectral properties of 4.

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