A review. Synthetic strategies to control interchain electronic communications within conjugated polymers (CPs) are described. Novel chem. architectures built on iptycenes, metallorotaxanes, and canopied pyrroles restrict the dimensionality of electronic structures responsible for exciton and charge transport. Structure-property relationships emerging from studies of selected systems are discussed, focusing on their implications for the sensitivity of these materials as sensors. [on SciFinder(R)]