PREPARATION AND PROBABLE STRUCTURE OF LAYERED COMPLEXES OF VANADYL PHOSPHATE WITH 1-ALKANOLS AND 1,OMEGA-ALKANEDIOLS

Citation
L. Benes et al., PREPARATION AND PROBABLE STRUCTURE OF LAYERED COMPLEXES OF VANADYL PHOSPHATE WITH 1-ALKANOLS AND 1,OMEGA-ALKANEDIOLS, Inorganic chemistry, 36(13), 1997, pp. 2850-2854
Citations number
25
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
ISSN journal
00201669
Volume
36
Issue
13
Year of publication
1997
Pages
2850 - 2854
Database
ISI
SICI code
0020-1669(1997)36:13<2850:PAPSOL>2.0.ZU;2-W
Abstract
The direct reaction of liquid (or melted solid) 1-alkanols or 1,omega- alkanediols with solid finely ground VOPO4 . 2H(2)O in a microwave fie ld leads to layered complexes of the composition VOPO4 . 2C(n)H(2n+1)O H (n = 1-18) or VOPO4 . CnH2n(OH)(2) (n = 2-10), respectively. The res ults of X-ray diffraction analysis show that the structures of all of these polycrystalline complexes (intercalates) retain the original lay ers of (VOPO4)(infinity). The molecules of alcohols are placed between the host layers in a bimolecular way, being anchored to them by donor -acceptor bonds between the oxygen atom of an OH group and a vanadium atom as well as by hydrogen bonds. The molecules of diols, on the othe r hand, using similar bonds, form, in monomolecular arrangement, bridg es linking the, adjacent layers of the host. The aliphatic chains of b oth intercalated alcohol and diol molecules possess all-trans configur ations, and their axes are perpendicular to the host layers.