Semiconducting lanthanide polymers of pyridine-2,6-dicarboxylate: Hydrothermal synthesis, structural characterization, electrical conductivity and luminescence properties

AY B., YILDIZ E., KANİ İ.

POLYHEDRON, cilt.142, ss.1-8, 2018 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 142
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1016/j.poly.2017.12.029
  • Dergi Adı: POLYHEDRON
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1-8
  • Anahtar Kelimeler: Hydrothermal synthesis, Insoluble Nd(III) and La(III) coordination polymers, Luminescence, Electrical conductivity, MOFs, METAL-ORGANIC FRAMEWORKS, COORDINATION POLYMERS, CRYSTAL-STRUCTURE, ACID, ADSORPTION, NETWORKS, SODIUM, MOF
  • Çukurova Üniversitesi Adresli: Evet

Özet

This paper describes the hydrothermal synthesis of two novel lanthanide coordination polymers (CPs) (H(2)piP)(n)[Ln(2)(PYdc)(4)(H2O)(2)](n) (Ln = La (1) and Nd (2), H(2)pydc = 2,6-pyridinedicarboxylic acid, H(2)pip = piperazine). The synthesized polymers were structurally characterized by the elemental analysis, ICP-OES, IR spectroscopy, TGA, single-crystal X-ray diffraction and powder X-ray diffraction (PXRD) analysis. For the morphological analysis field emission scanning electron microscopy (FESEM) was used. CPs are isomorphous, showing three-dimensional Ln-O-Ln chains. Ln(III) ions in 1-2 adopt nine-coordinated mode to construct a mono-capped square antiprism coordination environments. The electrical conductivity and luminescence properties of insoluble 1-2 have been investigated. CPs exhibited luminescence emission bands at 612 nm for I and 624 nm for 2 at room temperature when excited at 320 nm. (C) 2017 Elsevier Ltd. All rights reserved.