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In chemistry a Zintl phase is the product of a reaction between
Additional recommended knowledge
Zintl phases are named after the German chemist Eduard Zintl who discovered them in the 1930’s. Typically they were made from the elements or by reducing the post transition element in liquid ammonia.
Zintl phases are diamagnetic, poor conductors and brittle. As such they are quite unlike alloys. Zintl noted that there was an atomic volume contraction when these compounds were formed and realised this could indicate cation formation. He suggested that the structures of Zintl phases were ionic, where there was complete electron transfer from the more electropositive metal. The structure of the anion (nowadays called the Zintl ion) should then be considered on the basis of the resulting electronic state. These ideas were further developed to become the Zintl rule or Zintl Klemm concept where the polyanion structure should be similar to an isoelectronic element.
Examples of Zintl phases:-
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Zintl_phase". A list of authors is available in Wikipedia.|