A general term for compounds represented by M I [BH 4 ], M II [BH 4 ] 2 , M III [BH 4 ] 3 , and M IV [BH 4 ] 4. In the formula, M I , M II , M III , and M IV represent monovalent, divalent, trivalent, and tetravalent cations, respectively. It was synthesized by Schlesinger in 1940, and since then, much research has been done on its synthesis, reactions, and structure, but there are still many unsolved issues. When M I is an alkali metal, it is an ionic crystal, lithium salts are orthorhombic, and all others are sodium chloride type with a face-centered cubic lattice. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
MI[BH4],MII[BH4]2,MIII[BH4]3,MIV[BH4]4で表される化合物の総称。式中のMI,MII,MIII,MIVはそれぞれ1価,2価,3価,4価の陽イオンを示す。1940年シュレージンガーSchlesingerにより合成され,以後合成,反応,構造について多くの研究がなされているが,現在でも未解決の事項が多い。MIがアルカリ金属の場合はイオン結晶で,リチウム塩は斜方晶系,その他はすべて塩化ナトリウム型の面心立方格子である。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
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