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Si44-in Solution - First Solvate Crystal Structure of the Ligand-free Tetrasilicide Tetraanion in Rb1.2K2.8Si4·7NH3

Lorenz, Corinna ; Gärtner, Stefanie ; Korber, Nikolaus



Abstract

We report the first solvate structure of the silicide anion Si-4(4-), which provides circumstantial evidence of the stability of the highly charged anion in liquid ammonia solutions. The solvate Rb(1.2)K(2.8)Si(4)7NH(3) crystallized from a mixture of the ternary compound K6Rb6Si17 with the transition metal complex [(C6H5)(3)P](2)Ni(CO)(2) [bis(triphenylphosphine)dicarbonylnickel] in the presence ...

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