二鍺化七鋰是一種金屬間化合物,化學式為Li7Ge2,是鋰的鍺化物之一。它屬正交晶系,空間群Cmmm,晶胞參數 a=9.24 Å,b=13.21 Å,c=4.63 Å,Z=4。和同族的Li7Si2不同構。[1]它可由鍺和鋰的電化學反應得到,[2]或由鍺和氫化鋰的反應生成,此反應同時會產生Li9Ge4。[3]
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