Question
Download Solution PDFWhen did Louis Pasteur discover molecular chirality and observe that crystals of some compounds exist as mirror images which laid the foundation for modern stereochemistry?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is 1848.
Key Points
- Louis Pasteur:-
- He was a French chemist and microbiologist who is considered one of the founders of modern medicine.
- He made significant contributions to our understanding of fermentation, disease, and vaccination.
- Louis Pasteur discovered molecular chirality and observed that crystals of some compounds exist as mirror images in 1848.
- He was studying the crystals of sodium ammonium tartrate, a salt of tartaric acid.
- He noticed that the crystals could be separated into two groups, one of which was a mirror image of the other.
- Pasteur realized that this difference in shape was due to the different spatial arrangements of the atoms in the two molecules.
- He called this phenomenon "dissymmetry." Today, we call it "chirality."
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