3D model (JSmol)
CompTox Dashboard (EPA)
|Molar mass||224.154 g/mol|
|Appearance||blue-gray cubic crystals|
|Density||6.22 g/cm3, solid|
|Melting point||decomposes 700°C|
|Ia-3, No. 206|
|P264, P280, P302+P352, P305+P351+P338, P321, P332+P313, P337+P313, P362|
|NFPA 704 (fire diamond)|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
(what is ?)
The decomposition of Zinc Nitride into the elements at the same temperature is a competing reaction. At 700 °C Zinc Nitride decomposes. It has also been made by producing an electric discharge between zinc electrodes in a nitrogen atmosphere. Thin films have been produced by chemical vapour deposition of Bis(bis(trimethylsilyl)amido]zinc with ammonia gas onto silica or ZnO coated alumina at 275 to 410 °C.
The crystal structure is anti-isomorphous with Manganese(III) oxide. (bixbyite). The heat of formation is c. 24 kilocalories (100 kJ) per mol. It is a semiconductor with a reported bandgap of c. 3.2eV, however, a thin zinc nitride film prepared by electrolysis of molten salt mixture containing Li3N with a zinc electrode showed a band-gap of 1.01 eV.
Zinc nitride reacts with lithium (produced in an electrochemical cell) by insertion. The initial reaction is the irreversible conversion into LiZn in a matrix of beta-Li3N. These products then can be converted reversibly and electrochemically into LiZnN and metallic Zn.