TY - JOUR
T1 - "visible" 5d Orbital States in a Pleochroic Oxychloride
AU - Hirai, Daigorou
AU - Yajima, Takeshi
AU - Nishio-Hamane, Daisuke
AU - Kim, Changsu
AU - Akiyama, Hidefumi
AU - Kawamura, Mitsuaki
AU - Misawa, Takahiro
AU - Abe, Nobuyuki
AU - Arima, Taka Hisa
AU - Hiroi, Zenji
PY - 2017/8/9
Y1 - 2017/8/9
N2 - Transition metal compounds sometimes exhibit attractive colors. Here, we report a new oxychloride, Ca3ReO5Cl2, that shows unusually distinct pleochroism; that is, the material exhibits different colors depending on the viewing direction. This pleochroism is a consequence of the coincidental complex crystal field splitting of the 5d orbitals of the Re6+ ion in a square-pyramidal coordination of low symmetry in the energy range of the visible spectrum. Since the relevant d-d transitions show characteristic polarization dependence according to the optical selection rule, the orbital states are "visible" in Ca3ReO5Cl2.
AB - Transition metal compounds sometimes exhibit attractive colors. Here, we report a new oxychloride, Ca3ReO5Cl2, that shows unusually distinct pleochroism; that is, the material exhibits different colors depending on the viewing direction. This pleochroism is a consequence of the coincidental complex crystal field splitting of the 5d orbitals of the Re6+ ion in a square-pyramidal coordination of low symmetry in the energy range of the visible spectrum. Since the relevant d-d transitions show characteristic polarization dependence according to the optical selection rule, the orbital states are "visible" in Ca3ReO5Cl2.
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U2 - 10.1021/jacs.7b05128
DO - 10.1021/jacs.7b05128
M3 - Article
C2 - 28714681
AN - SCOPUS:85027179552
SN - 0002-7863
VL - 139
SP - 10784
EP - 10789
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 31
ER -