Atoms Quote by Giulio Natta
“If the polymer chain assumes a helicoidal conformation in the crystalline state, and if it does not contain asymmetric carbon atoms, it can be expected that either helices of the same sense, or, in equal ratio, helices of opposite sense are represented in the lattice.”
About This Quote
A symmetric polymer without chiral centers can form crystals containing either uniform helices or an equal mix of left‑ and right‑handed twists.
In simple terms: Symmetry yields mixed helices
Key Takeaway
Achiral polymers give ambiguous chirality
Themes
polymer chemistry
crystallography
chirality
molecular symmetry
materials science
Mood
analytical
technical
Type
statement
explanatory
When to use this quote
- material design
- nanostructure engineering
- polymer synthesis
Key Concepts
helical conformation
lattice structure
asymmetric carbon
Practical Applications
- predictive modeling
- crystal engineering
Questions to Reflect On
- How does helicity affect material properties?
- Can we control helix sense without chiral centers?
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