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1)
2)

Y. Inaguma et al.: J. Solid State Chem. 166, 67_
72 (2002).
M. Yashima et al.: J. Am. Chem. Soc. 127, 3491_
3495 (2005).

úËõj[X ¡ NïÉ¯V|w¶­\ÜR¸Êö´K¡ãBåwåw@w{ÃknÈwêU
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and T. C. Kobayashi: Angew. Chem. Int. Ed. 45, 4932
(2006).

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