A novel three dimensional samarium(III) coordination polymer with an unprecedented coordination mode of the 2,5-pyridinedicarboxylic acid ligand: Hydrothermal synthesis, crystal structure and luminescence property

AY B., Doʇan N., YILDIZ E., KANİ İ.

Polyhedron, vol.88, pp.176-181, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 88
  • Publication Date: 2015
  • Doi Number: 10.1016/j.poly.2014.12.035
  • Journal Name: Polyhedron
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.176-181
  • Keywords: Hydrothermal synthesis, X-ray structures, 2,5-Pyridinedicarboxylic acid, Samarium(lll) coordination polymer, Decarboxylation, LANTHANIDE-ORGANIC FRAMEWORKS, PHYSICAL-PROPERTIES, MOLECULAR-STRUCTURE, COMPLEXES, SM(III), CHEMISTRY, 1,10-PHENANTHROLINE, PHOTOLUMINESCENCE, DECARBOXYLATION, CE(III)
  • Anadolu University Affiliated: Yes

Abstract

© 2015 Elsevier Ltd. All rights reserved.A novel three dimensional (3D) coordination polymer [Sm(pic)2(pydc)4(H2O)]n (pydc = pyridine-2,5-dicarboxylate, Hpic = picolinic acid) (1) has been synthesized hydrothermally and characterized by elemental analysis, FT-IR, TG/DTA, single-crystal X-ray diffraction analysis and powder X-ray diffraction (PXRD). This compound crystallizes in the monoclinic space group P21/c with cell parameters a = 9.3041(13) Å, b = 14.216(2) Å, c = 10.5401(15) Å, V = 1387.72(30) Å3 and Z = 4. Complex 1 has a distinct 3D open-framework architecture due to the presence of picolinic ligands, which are converted from 2,5-pydc ligands by in-situ decarboxylation under the hydrothermal conditions. The compound exhibits strong luminescent emissions because of the f-f transitions of the Sm(III) ion at room temperature. According to TGA/DTA analysis, the coordination polymer is thermally stable up to ∼300 °C.