Bi(iii) polybromides: a new chapter in coordination chemistry of bismuth†
Abstract
A new family of bismuth coordination compounds – Bi(III) polybromides – is introduced. Four representatives of this class – (N-EtPy)3[Bi2Br9](Br2)2 (1), (4-MePyH)3[Bi2Br9](Br2) (2), (H2bpe){[BiBr5]}(Br2) (3) and (BPB)2[BiBr5(Br3)](Br3)(Br2) (4) – were obtained in a simple way from HBr solutions of BiBr3 with added Br2, highlighting the diversity of the structural types in the new family of complexes.