Darstellung und Kristallstruktur von Rubidiumtrijodoplumbat(II)

Preparation and Crystal Structure of Rubidium Triiodoplumbate(II) RbPbJ₃ crystallizes in the orthorhombic space group Pnam(D) (lattice parameters see above); it is isomorphous with CsPbJ₃. The crystal structure has been determined from 1452 independent reflexes by Patterson- and Fourier-syntheses and refined three dimensionally by least-squares-methods. 6 I surround Pb nearly octahedrally. The octahedra are arranged in the form of double chains along the c-axis, which are held together by Rb. (Pb? I bond distances see above). The “inert 6s-pair” at Pb is stereochemically inactive.