Sîan C. James, Nicholas C. Norman, A. Guy Orpen and Jonathan Starbuck
Reaction between BiX2Ph (X = Cl or I) and 4,4'-bipy afforded crystals of complexes trans-[BiX2Ph(4,4'-bipy)]n as solvates in which an anticipated combination of dative (Bi?bipy) and secondary bonding (Bi⋯X) leads to a controlled polymeric structure.