Lithium platinate

Lithium platinate, Li₂PtO₃, is a chemical compound of lithium, platinum and oxygen. It is a semiconductor with a layered honeycomb crystal structure and a band gap of 2.3 eV, and can be prepared by direct calcination of Pt metal and lithium carbonate at ca. 600 °C.^[3] Lithium platinate is a potential lithium-ion battery electrode material,^[2][4] though this application is hindered by the high costs of Pt, as compared to the cheaper Li₂MnO₃ alternative.^[5]

Lithium platinate

Crystal structure with Pt shown in yellow, Li in purple and O in red
Scale bar 1 mm[1]
Names
Preferred IUPAC name Lithium platinate
Identifiers
CAS Number	37363-24-9 Y
3D model (JSmol)	Interactive image
InChI InChI=1S/2Li.3O.Pt/q2*+1;;2*-1; Key: CVMPVCBSFYSFDB-UHFFFAOYSA-N
SMILES [Li+].O=[Pt]([O-])[O-].[Li+]
Properties
Chemical formula	Li2PtO3
Appearance	Yellow crystals
Band gap	2.3 eV[2]
Structure
Crystal structure	Monoclinic, C2/m[2]
Lattice constant	a = 5.1836(2) Å, b = 8.9726(3) Å, c = 5.1113(1) Å α = 90°, β = 109.864(2)°, γ = 90°
Formula units (Z)	4
Related compounds
Other anions	Lithium iridate, lithium ruthenate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N (what is YN ?) Infobox references