Near-Infrared Bis(indolium heptamethine cyanine) Dyes with a Spacer Derived from Oligo(ethylene glycol)

摘要

Synthesis of a series of near-infrared dimeric dyes is presented. The intramolecular dimers contain two chromophores linked with a conformationally flexible ether or oligoether bridge. Optical properties of the dyes are discussed.