Hydrothermal syntheses and crystal structures of new cage-like mixed-valent polyoxovanadates

Autor:	Hengqing Jia, Yangguang Li, Changwen Hu, Guoyou Luan, Ying Lu, Ninghai Hu, Enbo Wang, Yingbo Duan
Rok vydání:	2002
Předmět:	Chemistry Vanadium chemistry.chemical_element Crystal structure Vanadium oxide Hydrothermal circulation law.invention Ion Inorganic Chemistry Crystallography law Materials Chemistry Hydrothermal synthesis Physical and Theoretical Chemistry Electron paramagnetic resonance Single crystal
Zdroj:	Polyhedron. 21:2601-2608
ISSN:	0277-5387
DOI:	10.1016/s0277-5387(02)01255-x
Popis:	Three new cage-like mixed-valent polyoxovanadates [Ni(1,10'-phen)(3)](2)[V10O26] 1, [Zn(2,2'-biPY)(3)](3)[V15O36Cl](.)3H(2)O (2) and [Co(2,2'-biPY)(3)](3)[V15O36Cl](.)3H(2)O (3) have been hydrothermally synthesized for the first time and characterized by elemental analyses, IR, EPR spectra, TG analyses and single crystal X-ray diffraction. The polyoxoanion of I exhibits an interesting empty ellipsoidal [V-2(IV) V-8(V) O-26](4-) 'host' shell, while the oxo vanadium clusters of 2 and 3 possess a spherical [V-8(IV) V-7(V) O36Cl](6-) cage with a Cl- ion encapsulated. The structure-directing role of organic templates (1,10'-phen and 2,2'-bipy) on the formation of the polyoxoanion structures is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ec9be0dd61634291df6fb151722e8805 https://doi.org/10.1016/s0277-5387(02)01255-x Zobrazit plný text záznamu Full Text from ScienceDirect