“…15) [35]. In contrast, the Cs-compound features anion monolayers that intercalate planar zig-zag chains of cations (Cs· · ·Cs alternatingly 422.5 and 487.5 pm, Cs· · ·Cs· · ·Cs 135.7 • ), whereby each chain is surrounded and coordinated by four anion stacks and each anion stack connects two cation chains.…”