X-ray diffraction study on the short-range structure of K2O–TeO2 glasses and melts

2000 ◽  
Vol 311 (2) ◽  
pp. 153-158 ◽  
Author(s):  
Yasuhiko Iwadate ◽  
Takeshi Mori ◽  
Takeo Hattori ◽  
Shin Nishiyama ◽  
Kazuko Fukushima ◽  
...  
1995 ◽  
Vol 14 (2) ◽  
pp. 85-87
Author(s):  
Y. Iwadate ◽  
T. Hattori ◽  
S. Nishiyama ◽  
K. Fukushima

2000 ◽  
Vol 305 (1-2) ◽  
pp. 130-135 ◽  
Author(s):  
Yasuhiko Iwadate ◽  
Hidetaka Kenmotsu ◽  
Takeo Hattori ◽  
Shin Nishiyama ◽  
Kazuko Fukushima ◽  
...  

1994 ◽  
Vol 49 (7-8) ◽  
pp. 811-814 ◽  
Author(s):  
Yasuhiko Iwadate ◽  
Takuma Iida ◽  
Kazuko Fukushima ◽  
Junichi Mochinaga ◽  
Marcelle Gaune-Escard

Abstract The short range structure of molten ErCl3 at 1053 K was investigated by X-ray diffraction. The nearest neighbour distance of Er3+-Cl- and the coordination number of Cl- around Er3+ were estimated to be 2.63 Å and 5.8 Å, respectively, and the Er3+-Er3+ and Cl--Cl- distances 4.05 Å and 3.75 Å, respectively. The ratio of the anion-anion pair distance to the cation-anion pair distance (r--/r+-) was, therefore, 1.43, being close to 1.41, characteristic of octahedral geometry. These results indicate that ErCl63--octahedra exist in molten ErCl3. Probably Er2Clio and a small amount of Er2Cl115- ions are formed according to the geometrical calculations of bond lengths and bond angles.


2002 ◽  
Vol 71 (10) ◽  
pp. 2456-2458 ◽  
Author(s):  
Dilip Kumar Saha ◽  
Toetsu Shishido ◽  
Ken-ichi Ohshima

ChemInform ◽  
2010 ◽  
Vol 24 (23) ◽  
pp. no-no
Author(s):  
J. MOCHINAGA ◽  
M. IKEDA ◽  
K. IGARASHI ◽  
K. FUKUSHIMA ◽  
Y. IWADATE

1990 ◽  
Vol 45 (5) ◽  
pp. 623-626 ◽  
Author(s):  
Kazuo Igarashi ◽  
Mineo Kosaka ◽  
Masahiro Ikeda ◽  
Junichi Mochinaga

Abstract The structure of molten NdClj at 800 CC has been investigated by X-ray scattering and the correlation method. The nearest neighbor distance and coordination number of Nd-Cl are 2.77 Ä and 5.5 A, respectively. The Nd-Nd and CI-CI distances are 5.08 and 4.04 Ä, respectively. The average nearest neighbor distance and coordination number decrease markedly on melting, and the resulting short range structure of the melt is approximately octahedral


1993 ◽  
Vol 193 (1-2) ◽  
pp. 36-37 ◽  
Author(s):  
J. Mochinaga ◽  
M. Ikeda ◽  
K. Igarashi ◽  
K. Fukushima ◽  
Y. Iwadate

1988 ◽  
Vol 7 (8) ◽  
pp. 891-892 ◽  
Author(s):  
Takeo Hattori ◽  
Yasuhiko Iwadate ◽  
Kaxuo Igarashi ◽  
Junichi Mochinaga

ChemInform ◽  
2010 ◽  
Vol 25 (8) ◽  
pp. no-no
Author(s):  
Y. IWADATE ◽  
K. IGARASHI ◽  
T. HATTORI ◽  
S. NISHIYAMA ◽  
K. FUKUSHIMA ◽  
...  

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