Eu(III) and Tb(III) complexes of 1,3-bis(4-chlorophenyl)-1,3-propanedione combined with phenanthroline ligand: synthesis, structural characterization, and thermogravimetric studies

Sarioglu A. O., SÖNMEZ M., YALÇIN Ş., CEYLAN Ü., AYGÜN M.

JOURNAL OF COORDINATION CHEMISTRY, cilt.72, ss.1108-1118, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 72
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1080/00958972.2019.1593387
  • Dergi Adı: JOURNAL OF COORDINATION CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1108-1118
  • Anahtar Kelimeler: -Diketone, phenanthroline, lanthanide, crystal structure, BETA-DIKETONE LIGAND, FLUORESCENCE PROPERTIES, LUMINESCENT PROPERTIES, EUROPIUM, TRIFLUOROACETYLACETONE
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

-Diketone lanthanide complexes are used mainly in lighting, telecommunication, screens, safety inks, and marking as well as in the field of luminescent materials for probes in biosciences. Two new lanthanide ternary complexes, the general formula Eu(BCPP)(3)(Phen) and Tb(BCPP)(3)(Phen), combined 1,3-bis(4-chlorophenyl)-1,3-propanedione (BCPP) with 1,10-phenanthroline as a secondary ligand, were synthesized and structurally characterized by single crystal X-ray diffraction, elemental analysis, FT-IR, and MALDI-TOF MS. Single crystal X-ray diffraction analysis revealed that these Eu(III) and Tb(III) complexes displayed bidentate ligands and a square antiprism geometry for the metal center. Also, the absorption and thermal behavior of these lanthanide complexes were investigated. When the maximum absorption of the lanthanide complexes was compared, it was observed that the absorption wavelength of the lanthanide complexes were red shifted in DMSO, DMF, and DCM, depending on the polarity of the solvent.