Supramolecular complexes of crown-ethers with fluorinecomplexes acids of zirconium, hafnium, niobium and tantalum.

Authors: Ganin E.V., Gorlichenko M.G., Vasileva M.G., Shevchenko S.V.

Year: 2011

Issue: 11

Pages: 203-209


The nature of protondonor’s moleculas which stabilized in crystal molecular complexes by crown-ethers from equilibrium water solutions of fluorides of zirconium, hafnium, niobium and tantalum is determined by a structure of crown-ethers. The investigation has shown perspective position macrocyclic complexes for extraction of titled compounds from fluorine containing water solutions.

Tags: complexes; crown-ethers; fluorine complexes of acids


  1. Гибало И.М. Аналитическая химия ниобия и тантала. – М.: Изд. Наука, 1967. – 352 с.
  2. Годнева М.М., Мотов Д.Л. Химия фтористых соединений циркония и гафния. – Л.: Изд. Наука, 1971. – 285 с.
  3. Раков Э.Г. Химия и технология неорганических фторидов. – М.: Изд. МХТИ, 1990.–161 с.
  4. Fonari M.S., Simonov Yu.A., Wang W.-J. et al. Structure of oxonium hexafuoroniobate and hexafuorotantalate complexes with crown ethers of diferent dimensionality // Polyhedron – 2007. – V. 26. – P.5193-5202.
  5. Фонарь М.С., Алексеева О.А., Фурманова Н.Г. и др. Кристаллические структуры комплексов цис-син-цис изомера дициклогексано-18-краун-6 с гексафтортанталатом оксония и с гексафторниобатом оксония // Кристаллография . 2007. – Т.52, № 2. – С. 271 -276.
  6. Fonari M. S., Furmanova N.G., Wang W.-J. et al. Crystal Structures of Benzo-18-Crown-6 Complexes with Oxonium Hexafluorotantalate and Oxonium Hexafluoroniobate // Crystallography Reports . 2006. – V. 51, No. 5. – P. 804-810.
  7. Ganin Ed. V., Gelmboldt V.O., Koroeva L V. et al. Structure of Dibenzocrown Ethers and Their H-Bonded Adducts. 3. Isolation of Oxonium Ions by Biphenyl-20-crown-6 and [1.5]Dibenzo-18-Crown-6 in Complexes with [NbF6] and [TaF6] // J. Inclusion Phenomena . 2006. – V. 56. – P. 345-354.
  8. Furmanova N. G., Rabadanov M. Kh., Chernaya T. S. et al. Crystal structures of dioxonium hexafluorotantalate and dioxonium hexafluoroniobate complexes with tetrabenzo-30-crown-10 // Crystallography Reports . 2008. – V. 53, No. 2. – P. 246-252.
  9. Fonari M. S., Kravtsov V.Ch., Simonov Yu. A. et al. Crown-templated assembling of the inorganic binuclearfuoro-containing anions in the system ZrO2/HfO2 (Nb2O5/Ta2O5)–HF–H2O-azacrown ether // Polyhedron . 2008. – V. 27. – P. 2049-2058.
Download full text (PDF)