Tetra-yttrium(III) tris-ulfide disilicate

Area of Science:

• Inorganic Chemistry
• Crystallography
• Materials Science

Background:

• Understanding the crystal structures of complex inorganic compounds is crucial for materials science.
• Yttrium sulfides and silicates are compounds with potential applications in various technological fields.

Purpose of the Study:

• To determine the crystal structure of tetra-yttrium(III) tris-ulfide disilicate, Y(4)S(3)(Si(2)O(7)).
• To characterize the coordination environment of yttrium cations within this structure.

Main Methods:

• Single-crystal X-ray diffraction was used to elucidate the crystal structure.
• Analysis of atomic positions and coordination polyhedra.

Main Results:

• Y(4)S(3)(Si(2)O(7)) crystallizes in the Sm(4)S(3)(Si(2)O(7)) structure type.
• The structure features isolated disilicate units ((Si(2)O(7))(6-)) with D2h symmetry.
• Two distinct yttrium(III) cations exist, bridged by sulfur and oxygen atoms.

Conclusions:

• The first yttrium cation exhibits trigonal-prismatic coordination (3 O, 3 S).
• The second yttrium cation displays a tricapped trigonal-prismatic coordination (6 O, 3 S).
• This detailed structural information provides a foundation for understanding the properties and potential applications of Y(4)S(3)(Si(2)O(7)).