Boric acid complexes with organic biomolecules: Mono-chelate complexes with salicylic and glucuronic acids

KÖSE D. A., Zumreoglu-Karan B., HÖKELEK T., ŞAHİN E.

INORGANICA CHIMICA ACTA, cilt.363, sa.14, ss.4031-4037, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 363 Sayı: 14
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.ica.2010.08.001
  • Dergi Adı: INORGANICA CHIMICA ACTA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.4031-4037
  • Anahtar Kelimeler: Boric acid, Borate ester, Salicylic acid, Glucuronic acid, Crystal structure, C-13 MAS NMR, NUCLEAR-MAGNETIC-RESONANCE, AQUEOUS-SOLUTION, CRYSTAL-STRUCTURE, BORATE COMPLEXES, LITHIUM-SALTS, BORON, BIS(SALICYLATO)BORATE, COORDINATION
  • Atatürk Üniversitesi Adresli: Evet

Özet

Two mono-chelate borate complexes, lithium mono-salicylatoborate and sodium mono-glucuronatoborate, are reported for the first time. The complexes were isolated from aqueous solutions and characterized by FTIR (Fourier Transform Infrared) and C-13 MAS (Magic Angle Spinning) NMR techniques. Thermal stabilities of the complexes were examined by recording their TGA (Thermogravimetric Analysis) curves. Lithium mono-salicylatoborate, Li[B(Sal)(OH)(2)], was isolated in crystal form and presented as a novel hybrid metal-organic framework possessing zeolitic structure. X-ray analysis revealed an original crystal structure constructed with solvate-free lithium ions adopting two different types of coordination polyhedra, corner-sharing LiO4 (tetrahedral) and LiO5 (distorted square pyramidal), in the same framework. (C) 2010 Elsevier B.V. All rights reserved.