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Revealing Low-Barrier Conformational Flexibility in Perfluoropropanoyl Halides: A Structural Gas Phase Study of

Marcos I Leone1, Agustín Spaltro1, Carlos O Della Védova1

  • 1CEQUINOR (UNLP-CONICET), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 Esq. 115, 1900 La Plata, República Argentina.

Inorganic Chemistry
|April 16, 2026
PubMed

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The chair form is the most stable and derives its name from its resemblance to the “easy chair.” In the chair conformation, two carbon atoms are arranged out-of-plane — one above and one below, minimizing the torsional strain. In the chair form, the bond angle is very close to the ideal...
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The chair conformation is the most stable form of cyclohexane due to the absence of angle and torsional strain. The absence of angle strain is a result of cyclohexane’s bond angle being very close to the ideal tetrahedral bond angle of 109.5° in its chair conformer. Similarly, the torsional strain is also absent owing to the perfectly staggered arrangement of bonds.
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Structural Properties
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