Sterically driven electronic properties of naphthalene- and anthracene-end-capped 2,2′-bipyridine luminophores: synthesis and density functional theory

Two naphthalene- and one anthracene-end-capped 4,4′-π-conjugated-2,2′-bipyridine chromophores have been synthesized via the Horner-Wordsworth-Emmons reaction protocol and their electronic absorption and emission properties have been examined. DFT and TD-DFT computational studies have been carried out in order to comprehend the role of steric factor over the electronic factor.