Boron Chemistry at the Millennium Author:Author Unknown Hardbound. The chemistry of boron exhibits many unique features, demonstrating exceptional ability in molecular, ionic, and solid state environments to form very stable compounds exhibiting structures based on icosahedral and other deltahedral units. In addition, boron forms a variety of very stable mononuclear tetrahedral as well as polynuclear... more » cage anions including some of the most weakly coordinating anions currently known. The hydride chemistry of boron is also unusually rich providing diverse examples of multicenter bonding, which have stimulated numerous theoretical and computational studies.These features of boron chemistry can be considered to be as distinctive as the unique features of the much better known chemistry of carbon in organic compounds including the exceptional catenation ability of carbon as well as the wide range of compounds containing stable benzenoid and related structural units. These and other special features of boron c« less