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Synthesis and Crystal Structure of Disilvertitanate-(IV), Ag2TiO3

✍ Scribed by C. Linke; M. Jansen

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
379 KB
Volume
134
Category
Article
ISSN
0022-4596

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✦ Synopsis

Ag 2 TiO 3 was synthesized by solid state reaction of K 2 TiO x (OH) 6؊2x (x:1), as prepared by sol-gel methods, and Ag powder. During the reaction at 630Β°C an oxygen pressure of 0.14 GPa was maintained. Crystals of Ag 2 TiO 3 (monoclinic, C/2c, a ‫؍‬ 16.813(4) A > , b ‫؍‬ 7.612(1) A > , c ‫؍‬ 5.054(1) A > , ‫59.101؍‬ (2)Β°, Z ‫؍‬ 8, / scan, data collection excluding daylight, numerical absorption correction, R 1 ‫؍‬ 0.035, wR 2 ‫؍‬ 0.074) are yellow, of flat prismatic shape, and stable against air and moisture. The crystal structure exhibits the novel polymeric titanate anion 1 R [TiO 3 ] 2n؊ n : TiO 6 octahedra are connected by common edges to form one-dimensionally extended chains. The silver atoms are arranged to an extended homoatomic structural unit with rather short silver-silver contacts, which are indicative for weak bonding interactions between the d 10 configurated silver cations.

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