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|Section2= |Section4= |Section7= |Section8= }} Beryllium hydride (systematically named beryllium dihydride) is an inorganic compound with the chemical formula ()''n'' (also written ()''n'' or ). It is a colourless solid that is insoluble in solvents that do not decompose it.〔Pradyot Patnaik. ''Handbook of Inorganic Chemicals''. McGraw-Hill, 2002, ISBN 0-07-049439-8〕 Unlike the ionically bonded hydrides of the heavier Group 2 elements, beryllium hydride is covalently bonded〔 (three-center two-electron bond). == Synthesis == Unlike the other group 2 metals, beryllium does not react with hydrogen.〔Egon Wiberg, Arnold Frederick Holleman (2001) ''Inorganic Chemistry'', Elsevier ISBN 0-12-352651-5, p. 1048〕 Instead, BeH2 is prepared from preformed beryllium(II) compounds. It was first synthesised in 1951 by treating dimethylberyllium, Be(CH3)2, with lithium aluminium hydride, LiAlH4. Purer BeH2 forms from the pyrolysis of di-tert-butylberyllium, Be(C(CH3)3)2 at 210 °C. A route to highly pure samples involve the reaction of triphenylphosphine, PPh3, with beryllium borohydride, Be(BH4)2:〔 :Be(BH4)2 + 2 PPh3 → 2 Ph3PBH3 + BeH2 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Beryllium hydride」の詳細全文を読む スポンサード リンク
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