W. Clegg et al., STRUCTURE OF BIBR2PH - A SOLID-STATE ARCHITECTURE INVOLVING SECONDARYBONDING AND PI-PI INTERACTIONS, Journal of materials chemistry, 4(6), 1994, pp. 891-893
The X-ray crystal structure of the compound BiBr2Ph comprises one-dime
nsional chains in which the bismuth centres are linked through bromine
bridges: these chains form a two-dimensional layer as a result of pi-
pi interactions between interleaved phenyl groups in adjacent chains.
All atoms lie in special positions, on mirror planes or two-fold rotat
ion axes.