Bromoplumbate mit kettenförmigen und isolierten Anionen: (Bzl4P)2[Pb3Br8], (Bzl4P)2[Pb3Br8(dmf)2], (Bzl4P)[PbBr3], (Bzl4P)2[PbBr4] und (Bzl4P)4[Pb2Br6][PbBr4]

Bromoplumbates with One‐dimensional Polymeric and Isolated Anions: (Bzl₄P)₂Pb₃Br₈], (Bzl₄P)₂Pb₃Br₈(dmf)₂], (Bzl₄P)PbBr₃], (Bzl₄P)₂PbBr₄], and (Bzl₄P)₄Pb₂Br₆]PbBr₄] PbBr₂ reacts with LiBr and (Bzl₄P)(PF₆) (Bzl = CH₂C₆H₅) in acetone to form a series of bromoplumbate complexes with compositions and structures depending on the conditions of reaction and crystallization. While the anions in (Bzl₄P)₂Pb₃Br₈] ( 1 ) and (Bzl₄P)PbBr₃] ( 2 ) are one‐dimensional polymers with penta‐ and hexacoordinated Pb atoms, the metal atoms in the mono‐ and dinuclear complex anions of (Bzl₄P)₂PbBr₄] · 2acetone ( 3 · 2acetone) and (Bzl₄P)₄Pb₂Br₆]PbBr₄] ( 4 ) bind to four bromo ligands. From DMF as a solvent (Bzl₄P)₂Pb₃Br₈(dmf)₂] ( 1 b ) crystallizes with the same bromoplumbate structure as in 1 a , but with dmf ligands occupying the coordination sites vacant in 1 a . Upon radiation of compound 3 with ultraviolet light greenish yellow photoluminescence (emssion maximum at 547 nm) is observed. Crystallographic details see “Inhaltsübersicht”.