On the Crystal Structure of a New Vanadium Oxide, V4O9.

Selective oxidation of H2S to sulfur over vanadia supported on mesoporous zirconium phosphate heterostructure

“…with vanadium atoms exclusively in square-pyramidal coordination with oxygen [37,38]. We must indicate that this crystalline structure can be easily formed by a partial reduction of V2O5 [39,40].…”

Synthesis, structure and magnetic properties of V4O9—A missing link in binary vanadium oxides

“…Taniguchi et al, for the first time, confirmed the existence of V 4 O 9 from thermogravimetric analysis [15]. Afterward, Wilhelm et al proposed a crystal structure model of V 4 O 9 ; however, they did not propose detailed atomic positions [16]. Kawashima et al also predicted the existence of the homologous V n O 2n + 1 series compounds including V 4 O 9 in the process of isothermal reduction of V 2 O 5 by SO 2 gas [17].…”

Structural chemistry of vanadium oxides with open frameworks

“…Thus, n = 0 for layered V 3 O 8 structures, n = 2 for V 2 O 5 and n = 3 for V 12 O 29 . The last most complex layer is composed of two- (1) de Picciotto et al (1993); (2) Oka et al (1990); (3) Weeks et al (1999); (4) Oka et al (1995); (5) Wilhelmi & Waltersson (1970); (6) Ha-Eierdanz & Muller (1993); (7) Galy et al (1970); (8) Khamaganova & Trunov (1988); (9) Wadsley (1955); (10) Kobayashi (1979); (11) Hardy et al (1964); (12) ; (13) Ozerov et al (1957); (14) Kato et al (1989b); (15) Kato et al (1990); (16) Kato & Takayama-Muromachi (1987a); (17) Kato et al (1989a); (18) Kato & Takayama-Muromachi (1987b).…”