Crystal Structures of the Perovskite‐Related System
<i>A</i>
/Rb/Cu(II)/Br (
<i>A</i>
=BA, Gu, PEA, 5‐AVA, H
<sub>2</sub>
en) with Winners, Losers and Compromises – Versatility from 0D to 3D on Different Levels
By precipitation from aqueous HBr we obtained 12 new compounds of the ternary and quaternary systems RbBr/CuBr2, ABr/CuBr2, and ABr/RbBr/CuBr2 (A=organic cation). Their crystalstructures were determined by single crystal measurements. The new compounds range from0D to 3Dstructures with octahedral (4+2, 2+4) or tetrahedral surroundings of the Cu2+ cations.