Properties, chemical suboxide

All suboxides and subnitrides described in the preceding sections are metallic. In the case of the alkali metal suboxides this property has been demonstrated by measurements of the electrical conductivity [58], CS7O, for example, exhibits a free electron like behavior in the temperature dependence of its resistivity rather similar to the element Cs itself. The characteristic colors of the alkali metal suboxides have been mentioned before, and spectroscopic investigations to be discussed in the following provide a more quantitative access to the metallic properties and the underlying chemical bonding. 

Chemical properties of gallium fall between those of aluminum and indium. It forms mostly the binary and oxo compounds in -i-3 oxidation state. It forms a stable oxide, Ga203 and a relatively volatile suboxide, Ga20. 

Arsenic Suboxide—Arsenious Oxide Polymorphism and Physical Properties of Arsenious Oxide, Chemical Properties, Uses—The Arsenites—Arsenic Tetroxide. 

Preparative aspects of the investigations of alkali metal suboxides, e.g. synthesis, analysis and crystal growth have been described in detail earlier. (11,12) The emphasis of this paper lies on structural aspects, measurements of some important physical properties and their discussion in terms of the chemical bonding within these compounds. Some attention is paid to the structure and bonding in metastable and amorphous states of alkali metal suboxides, too. 

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