KSb2, a New Structure Composed of Ribbons of Edge-Shared Six-Membered Sb Rings

There are a number of binary compounds which can be described as valence compounds and whose structures can be rationalized using the Zintl-Klemm rule, and are therefore considered to be Zintl compounds. Although some of these binary compounds are made up of anionic partial structures that are isoelectronic and isostructural with elemental structures, there are a large number of compounds with entirely new anionic structures. Considering the large number of binary compounds that exist whose structures are known, it is surprising that there are new structures are known, it is surprising that there are new structures still waiting to be discovered. Serendipity sometimes is the key, and herein we describe the synthesis, structure, and electronic characterization of the Zintl compound KSb{sub 2}.