TY - JOUR
T1 - Interlayer Spacing of k-(BEDT-TTF)2Cu(NCS)2
AU - Watanabe, Yousuke
AU - Sasaki, Takahiko
AU - Sato, Hideki
AU - Toyota, Naoki
PY - 1991/1
Y1 - 1991/1
N2 - From low-temperature X-ray diffraction measurements, the interlayer spacing d100 of the layered organic superconductor k-{BEDT-TTF)2Cu(NCS)2 is revealed to take a maximum around 100K. Since d100=a-sinβ (a is the monoclinic lattice parameter and P the angle between the a- and c-axes), this anomalous maximum is due to the combined effect of the monotonous increasing a and decreasing sinβ (β>90°) with decreasing temperatures. This result can be attributed to the structural changes in the hydrogen bonding between the terminal ethylene CH2 and the counter anion molecule -SCN-Cu-NCS-.
AB - From low-temperature X-ray diffraction measurements, the interlayer spacing d100 of the layered organic superconductor k-{BEDT-TTF)2Cu(NCS)2 is revealed to take a maximum around 100K. Since d100=a-sinβ (a is the monoclinic lattice parameter and P the angle between the a- and c-axes), this anomalous maximum is due to the combined effect of the monotonous increasing a and decreasing sinβ (β>90°) with decreasing temperatures. This result can be attributed to the structural changes in the hydrogen bonding between the terminal ethylene CH2 and the counter anion molecule -SCN-Cu-NCS-.
KW - hydrogen bonding
KW - k-{BEDT-TTF)2Cu(NCS)2
KW - lattice parameter
KW - low-temperature X-ray diffraction
KW - organic superconductor
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U2 - 10.1143/JPSJ.60.2118
DO - 10.1143/JPSJ.60.2118
M3 - Article
AN - SCOPUS:0010135411
SN - 0031-9015
VL - 60
SP - 2118
EP - 2121
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 7
ER -