Intramolecular exciplex formation in 6-(2',3'-butenyloxy)methyl-1-cyanonaphthalene

Photoactivation of distal functional groups in polyfunctional molecules

“…Examples include copolymers containing phenanthrene and N,N-dimethylaniline units which form an exciplex [18], a polystyrene containing dimethylaniline and pyrene end groups [19], and a polypeptide chain containing excimer forming pyrene groups [20]. Smaller systems include 1-(phenylamino)-3-(9-sathryl)propanes [21], 1-(1-pyrenyl)-3-(N-skatolyl)propane [22], and 6-(2', 3'-butenyloxy)methyl-l-cyanonaphthalene (the olefin/naphthonitrile exeiplex) [23]. The fluorescent properties of excited ternary complexes are now being studied in substrates such as 5 [24], activation parameters for intramoleeular phosphorescence quenching have been determined for 6 [25] and both 7r-lr and n-z" exciplex interactions involving pyridine and naphthalene have been reported for cyclophanes [26].…”