Hi why do many dyes who have a conjugated system of delocalized

  • Thread starter Gavroy
  • Start date
  • Tags
    Hi System
In summary, the conversation discusses the phenomenon of dyes with conjugated systems of delocalized electrons being able to absorb a range of wavelengths instead of a specific one. The participants also mention the possibility of multiple electron levels and the role of atoms and molecules in absorption.
  • #1
Gavroy
235
0
hi

why do many dyes who have a conjugated system of delocalized electrons absorb, not a particular wavelenght, but often a whole range of wavelenghts?

so if there is a dye, that absorbs let me say all wavelenghts between 640-680nm. how is this possible?
for me, this would mean, that there are an infinite number of electron levels on which the delocalized electrons can jump on, which cannot be right or am I wrong?
 
Physics news on Phys.org
  • #2


Absorbtion doesn't take place ONLY with electrons. Entire atoms and molecules can absorb photons. Also, there is often a "band" of energy ranges that electrons can occupy in a material when their atoms are bound together. No longer is it soley atomic orbitals.
 

Related to Hi why do many dyes who have a conjugated system of delocalized

1. What is a conjugated system of delocalized dyes?

A conjugated system of delocalized dyes refers to a type of dye molecule that contains alternating single and double bonds, allowing for the delocalization of electrons across the molecule. This results in a more stable and extended pi-electron system, giving the dye its unique color and properties.

2. How do conjugated dyes produce color?

Conjugated dyes produce color through a process called absorption. When light hits the dye molecule, some of the photons are absorbed by the delocalized electrons, promoting them to a higher energy state. The remaining photons are reflected, giving the dye its characteristic color.

3. Why are conjugated dyes commonly used in textile and food industries?

Conjugated dyes are commonly used in textile and food industries because of their vibrant and stable colors, as well as their ability to bind to various materials. They are also often non-toxic, making them safe for use in everyday products.

4. How are conjugated dyes different from other types of dyes?

Conjugated dyes are different from other types of dyes because of their unique molecular structure and properties. Unlike other dyes, they have a larger and more stable pi-electron system, resulting in brighter and more vibrant colors. They also have a longer lifespan and are less likely to fade over time.

5. Are there any potential health or environmental concerns associated with conjugated dyes?

While some conjugated dyes may be toxic, the majority of them are safe for use in everyday products. However, it is always important to follow proper handling and disposal procedures to prevent any potential harm to human health or the environment.

Similar threads

A Thermal Properties of the Free Electron Gas: Fermi-Dirac Distribution
    • Atomic and Condensed Matter
Replies
1
Views
2K
Delocalization in metals and conjugated systems
    • Chemistry
Replies
8
Views
2K
B Why is an electric arc needed for spectroscopy of clear gases?
    • Atomic and Condensed Matter
Replies
4
Views
2K
A How do acceptor energy levels form in p-doped semiconductors?
    • Atomic and Condensed Matter
Replies
2
Views
2K
B Why does light transmit through glass/diamond, but not solid
    • Atomic and Condensed Matter
Replies
2
Views
2K
A Numerical solution to SE - variational method, many electrons
    • Atomic and Condensed Matter
Replies
1
Views
1K
B Hi, I'm learning physics -- Why do things near me not fall toward me?
    • Classical Physics
Replies
12
Views
789
B Frequency of an EM wave in Classical and Quantum Physics
    • Quantum Physics
Replies
6
Views
893
A Does electron energy contribute to current
    • Atomic and Condensed Matter
Replies
8
Views
2K
I Do electrons have a net motion when a DC voltage is applied?
    • Atomic and Condensed Matter
Replies
7
Views
2K

Hot Threads

Recent Insights

Back
Top