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Temperature Dependent Jahn‐Teller Distortion in the Prussian Blue Analogue Cu 0.47 Ni 0.48 Mn 0.55 [Fe(CN) 6 ]·7.8H 2 O
Author(s) -
Liu Min,
Zhou Jian,
Xu MingXiang
Publication year - 2013
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.201200437
Subject(s) - prussian blue , jahn–teller effect , distortion (music) , metal , phase (matter) , ion , materials science , elongation , diffraction , crystallography , analytical chemistry (journal) , chemistry , electrochemistry , physics , metallurgy , electrode , optics , amplifier , optoelectronics , organic chemistry , cmos , ultimate tensile strength , chromatography
The Jahn‐Teller distortion properties of Cu 0.47 Ni 0.48 Mn 0.55 [Fe(CN) 6 ] · 7.8H 2 O were studied by powder X‐ray diffraction measurements in the temperature region from 80 to 298 K. In the cooling process, a new peak labeled “a” near the (220) peak appears at 110 K. Conversely, as the sample is warmed to 200 K, this peak disappears. The new peak “a” is attributed to a slight elongation by Jahn‐Teller distorted Cu 2+ ions. The structural distortion is relatively little, and thus, the compound undergoes no formal phase change occurs with the temperature varied. Temperature dependent Jahn‐Teller distortion was directly observed in the multi‐metal prussian blue analogue Cu 0.47 Ni 0.48 Mn 0.55 [Fe(CN) 6 ] · 7.8H 2 O.