1. L. Velluz , M.Legrande and M.Grosjean, Optical Circular Dichroism, Verlag-Chemie GMBH, Academic Press Inc., New York, 1965.
2. C. Djerassi , Optical Rotary Dispersion, McGraw-Hill, New York, 1960. There is an extremely large body of literature on carbonyl n-π* CD. The references given below relate specifically to the zig-zag enhancement of the CD. References in them lead on to the main body of carbonyl CD literature.
3. Structure and the Optical Rotatory Dispersion of Saturated Ketones
4. Electron Correlation Models for Optical Activity
5. Circular dichroism of the carbonyl n-.pi.* transition: an independent systems/perturbation approach