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ChemInform Abstract: A Hydrogen Polyphosphide Salt of the First Homoleptic Strontium Ammine Complex: Synthesis and Structure Analysis of (Sr(NH3)8)HP11×NH3.

✍ Scribed by N. KORBER; J. DANIELS

Publisher: John Wiley and Sons
Year: 2010
Weight: 30 KB
Volume: 28
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199750015

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✦ Synopsis

A Hydrogen Polyphosphide Salt of the First Homoleptic Strontium Ammine Complex:

Synthesis and Structure Analysis of (Sr(NH3)8)HP11•NH3.

-With regard to the synthesis and characterization of Zintl anion compounds and the isolation of the highly reactive HP2-11 anion, an ammino complex of Sr cations is shown to function as large noncoordinating cation in analogy to cryptand-encapsulated alkali metal cations. Single crystals of the title compound are prepared in liquid ammonia using an ion exchange resin loaded with Sr2+ and additional resin in the protonated form. The structure (orthorhombic, Pna21, Z = 4), determined by single-crystal XRD methods, consists of Sr(NH3)2+8 with Sr2+ in square antiprismatic coordination. The HP2-11 anion exhibits a trishomocubane-like cage structure.

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