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Eine neue, hexagonale Modifikation von AgNiO 2
Author(s) -
Sörgel Timo,
Jansen Martin
Publication year - 2005
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200500295
Subject(s) - hexagonal crystal system , crystallography , crystal structure , electrical resistivity and conductivity , oxygen pressure , materials science , single crystal , chemistry , oxygen , physics , organic chemistry , quantum mechanics
A New Hexagonal Modification of AgNiO 2 AgNiO 2 was prepared from a preoxidized coprecipitate of Ag 2 O and Ni(OH) 2 followed by keeping at 550 °C under an oxygen pressure of 130 MPa. According to the powder and single crystal X‐ray analysis of the crystal structure ( P 6 3 / mmc , Z = 2, a = b = 2.93653(3), c = 12.2369(1) Å), a new 2H‐polytype of AgNiO 2 had formed. Qualitatively, the magnetic properties correspond to those found for 3R‐AgNiO 2 , while the resistivity is showing a different dependence on temperature.