Transoid and Cisoid Dienes with substituents highlighted in red. Ultraviolet-Visible (UV-Vis) Spectroscopy – Woodward-Fieser Rules to Calculate Wavelength of Maximum Absorption (Lambda-max) of Conjugated Dienes and Polyenes Post author:Akul Mehta Post published:August 5, 2012 Post category:Analytical Chemistry/Notes Continue ReadingUltraviolet-Visible (UV-Vis) Spectroscopy – Woodward-Fieser Rules to Calculate Wavelength of Maximum Absorption (Lambda-max) of Conjugated Dienes and Polyenes