iron ii nitride formula is an inorganic compound consisting of one Iron atom and 1 Nitrogen atom. It exists as a black crystalline solid and doesn’t dissolve in water or alkali. It’s used as raw material in the manufacture of steel, and it’s also a component of green heat-absorbing glass that’s used in automobiles and buildings. Inhaling fumes or dust from this substance can cause flu-like symptoms and siderosis, and it’s considered to be hazardous to health.
Group IVA, VA, VIA, and VIIA nonmetals tend to form anions by gaining enough electrons to fill their valence shell with eight electrons. This leaves them with a positive charge on their ionic core, which is written as the group number plus eight. Group I metals often form cations by losing two of their outermost electrons and then absorbing three from the environment. When they combine with another metal or nonmetal, the ionic bond forms a molecular complex called an ion. Because of this, the charges on these ions are often written as their stem elements and the number of electrons they have left over is written in parentheses to the right of the stem name. The names of these ions are based on the Stock system, which names them by their element stem and then by their charge in roman numerals.
Fe atoms rarely exhibit coordination numbers higher than six, and even six-coordinate structures are quite rare. However, recent experiments and theoretical calculations indicate that the crystal structure of the Cmmm phase of iron-nitrogen compounds contains Fe atoms in 8-coordination decahedra. To investigate this phenomenon, we performed a comprehensive set of structural and enthalpy calculations using the CALYPSO-based X-ray structure prediction code in a pressure range from 0 to 300 GPa.