Zintl boundary

Where might one find new AC/QC materials Our earlier extensions of the p-element components in Zintl-type compounds to the triels (Al, Ga, In, Tl) (beyond the so-called Zintl boundary ) as well as the inclusions of late transition metals had already given us some significant glimpses of new and appropriate chemistry and structures [46,51]. In addition, some examples were already in the literature for Ga [44], In contrast, the anion or intermetallic chemistry of aluminum [45] stands apart from that of the three heavier group members (Ga, In, and Tl) and will not be considered here significantly. 

J. D. Corbett (2000) Angewandte Chemie International Edition, vol. 39, p. 671 - Polyanionic clusters and networks of the early p-element metals in the solid state beyond the Zintl boundary . 

Corbett, J. D. Polyanionic Clusters and Networks of the Early p-Element Metals in the Solid State Beyond the Zintl Boundary. Angew. Chem. Int. Ed. 2000, 39, 670-690. 

The present work will only consider the electronic properties of those Zintl phases which crystallize in the B32 structure. Binary B32 Zintl phases are formed by the AB compounds LiAl, LiGa, Liln and Naln, by the prototype NaTl, and by the AB compounds LiZn and LiCd. Ternary systems, which crystallize in this structure, are found for alloys ABi-,Cx, for which at least one boundary compound AB or AC crystallizes in the NaTl type of structure. 

When appropriate, Zintl phases will be alluded to in the following section, but the sheer quantity of structural and other data collected in this field of chemistry " prohibits an extensive review within the boundaries of this work. In the following, the emphasis will continue to be on clusters which are stable in both solution and the solid state. 

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