Related Experiment Video
Updated: Jun 15, 2026

Exfoliation of Egyptian Blue and Han Blue, Two Alkali Earth Copper Silicate-based Pigments
Published on: April 24, 2014
La2Pb(SiS4)2
L D Gulay1, M Daszkiewicz, I P Ruda
1Department of Ecology and Protection of the Environment, Volyn National University, Voli Avenue 13, 43009 Lutsk, Ukraine.
Abstract:
Crystals of La(2)Pb(SiS(4))(2), dilanthanum(III) lead(II) bis[tetrasulfidosilicate(IV)], were obtained from the La-Pb-Si-S system and structurally characterized using X-ray single-crystal diffraction. The La and Pb atoms are coordinated in bicapped trigonal prisms of S atoms, with the Si atoms in tetrahedra. An occupational disorder of the La and Pb centres was refined for one position in the structure. The bicapped trigonal prisms and tetrahedra share edges. A gap located 2.629 (1) A from the sulfide anions was found around the coordination polyhedra, which makes La(2)Pb(SiS(4))(2) a prospective material in crystal engineering. The Si and one S atom lie on a threefold axis.
More Related Videos
10:42Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)
Published on: December 29, 2016
09:09A Facile Synthetic Method to Obtain Bismuth Oxyiodide Microspheres Highly Functional for the Photocatalytic Processes of Water Depuration
Published on: March 29, 2019
Related Concept Videos
Ionic Crystal Structures
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
Weak Acid Solutions
Ionic Bonding and Electron Transfer
Lewis Acids and Bases
Ionic Association
Precipitation of Ions
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is: