Colour and Constitution
Eric Coates · Journal of the Society of Dyers and Colourists · 1967
An interpretation of colour is out lined and an explanation is given of the presentation of experimental data in the form of absorption spectra. Several different approaches to the modern interpretation of spectra in terms of electronic theory are indicated. Some simple quantitative methods are illustrated, but the emphasis is laid on qualitative accounts of spectral‐energy changes in well‐known classes of molecules, including dyes.