Steric effects in di- and tri-arylmethane dyes. Part 14. Electronic absorption spectrum of an α,o-bridged analogue of Michler's hydrol blue
Abstract
The absorption spectrum of 7-dimethylamino-4-(4-dimethylaminophenyl)-1,2-dihydronaphthalene (VII) has been determined in 98% acetic acid. The spectral changes observed with time are discussed in terms of molecular conformation.