Novel intermetallic Yb∼3Pt∼4Si6−x (x = 0.3) – A disordered variant of the Y3Pt4Ge6-type

Highlights: •Yb∼3Pt∼4Si6−x crystal structure was studied by single crystal X-ray diffraction. •Yb∼3Pt∼4Si6−x belongs to the Y3Pt4Ge6 structure type being its disordered version. •We have compared Yb∼3Pt∼4Si6−x crystal structure with the prototype Y3Pt4Ge6. -- Abstract: The crystal structure of the novel intermetallic Yb∼3Pt∼4Si6−x was determined by single crystal X-ray diffraction: space group P21/m (No. 11); a = 8.4560(3) Å, b = 4.2109(2) Å, c = 12.7864(5) Å, β = 99.537(2)°, RF = 0.046, wR2 = 0.132. The title compound is a disordered variant of the Y3Pt4Ge6 type. It is characterized by the intergrowth of slabs cut from the ThCr2Si2 and YIrGe2 types of structures