User:OrganoMetallurgy/Drafts/Lithium tetraamine

OrganoMetallurgy/Drafts/Lithium tetraamine

Names
Other names Lithium(0) tetraamine Tetraaminelithium(0)
Identifiers
Properties
Appearance	Golden bronze
Melting point	−184.2 °C; −299.5 °F; 89.0 K
Boiling point	decomposes
Solubility in ammonia	miscible
Vapor pressure	32 torr at 0 °C
Related compounds
Related compounds	Ca(NH3)6
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

non-chembox sections

Lithium tetraamine, Li(NH₃)₄, is a weakly metallic electride which has the lowest known melting point of any metal. It lies close to a Mott metal insulator transition

Structure

Each lithium atom is tetrahedrally coordinated by four NH₃ molecules. Body centered cubic crystal structure stable between 82 and 89 K, hexagonal structure stable below 82 K.

Deuterated

Melts at 89 K Doesn't undergo a phase transition at 82 K. Transition to simple cubic structure at 22 K.

Preparation

Formed from the dissolution of lithium in ammonia at the proper ratio

Reactions

Powerful reducing agent

References

DOI: 10.1021/ja109397k 10.1021/ic00136a033