Cd(II)-coordination polymers based on tetracarboxylic acid and diverse bis(imidazole) ligands: Synthesis, structural diversity and photoluminescence properties

ARICI M., YEŞİLEL O. Z., TAŞ M.

JOURNAL OF SOLID STATE CHEMISTRY, cilt.245, ss.146-151, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 245
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1016/j.jssc.2016.10.015
  • Dergi Adı: JOURNAL OF SOLID STATE CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.146-151
  • Anahtar Kelimeler: 3,3 ',5,5 '-Azobenzenetetracarboxylate, Cd(II)-coordination polymer, Flexible and semi-flexible bis(imidazole) ligands, METAL-ORGANIC FRAMEWORKS, 3,3',5,5'-AZOBENZENETETRACARBOXYLIC ACID, CRYSTAL-STRUCTURES, HYDROGEN STORAGE, COORDINATION, 3D, THIOPHENE-2,5-DICARBOXYLATE, LINKERS
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

Three new Cd(II)-coordination polymers, namely, {[Cd-2(mu(6)-ao(2)btc)(mu-1,5-bipe)(2)].2H(2)O}(n) (1), {[Cd-2(mu(6)-ao(2)btc) (mu-1,4-bix)(2)](n)-2DMF} (2) and {[Cd-2(mu(8)-abtc)(mu-1,4-betix)].DMF.H2O}(n) (3) (ao(2)btc=di-oxygenated form of 3,3',5,5'-azobenzenetetracarboxylate, 1,5-bipe: 1,5-bis(imidazol-lyl)pentane, 1,4-bix=1,4-bis(imidazol-lylmethyl)benzene, 1,4-betix=1,4-bis(2-ethylimidazol-lylmethyl)benzene) were synthesized with 3,3',5,5'-azo-benzenetetracarboxylic acid and flexible, semi-flexible and semi-flexible substituted bis(imidazole) linkers. They were characterized by IR spectroscopy, elemental analysis, single-crystal X-ray diffraction, powder X-ray diffractions (PXRD) and thermal analyses (TG/DTA). Complexes 1-3 exhibited structural diversities depending on flexible, semi-flexible and semi-flexible substituted bis(imidazole) ligands. Complex 1 was 2D structure with 3,6L18 topology. Complex 2 had a 3D pillar-layered framework with the rare sqc27 topology. When semi flexible substituted bis(imidazole) linker was used, 3D framework of complex 3 was obtained with the paddlewheel Cd-2(CO2)(4)-type binuclear SBU. Moreover, thermal and photoluminescence properties of the complexes were determined in detailed.