There are numerous colored normal substances, particularly dyes and you can pigments. Exactly how will it be these particular tone occur? Discover a virtually relationship between the color of a natural substance and its particular construction. Here, I could determine thisrelationship playing with intake spectra out of organic compounds acquired that have Shimadzu’s Ultraviolet-2550 Uv-VIS spectrophotometer.
step one. The relationship Between Conjugated Double bond Options and you will Intake Highs
There are many organic substances that have conjugated double-bond systems (hereafter referred to as “conjugated assistance”), where some other thread is actually a double bond. This type of conjugated systems has a large influence on level wavelengths and you will intake intensities. Fig. step 1 reveals the newest formations out of benzene, naphthalene, and anthracene. Fig. 2 reveals brand new assimilation spectra acquired because of the dissolving these types of compounds in the ethanol and viewing the fresh resulting solutions. （更多…）