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

AYDINER B.

TURKISH JOURNAL OF CHEMISTRY, cilt.43, sa.4, ss.1086-1097, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 43 Sayı: 4
  • Basım Tarihi: 2019
  • Doi Numarası: 10.3906/kim-1902-38
  • Dergi Adı: TURKISH JOURNAL OF CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.1086-1097
  • Gazi Üniversitesi Adresli: Evet

Özet

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 H-1 NMR method. Additionally, DFT and TDDFT studies were performed to support the structural and absorption spectral properties of 4.