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Learning to draw Fischer projections of molecules and understanding their relevance plays a crucial role in the visual depiction of organic molecules. A Fischer projection is a two-dimensional projection on a planar surface to simplify the three-dimensional wedge–dash representation of molecules. This is especially helpful in the case of molecules with multiple chiral centers that can be difficult to draw. Here, all the bonds of interest are represented as horizontal or vertical lines.
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Crystal Structure of the N-terminal Domain of Ryanodine Receptor from Plutella xylostella
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Crystal structure of fenpropathrin.

Gihaeng Kang1, Youngeun Jeon1, Sangjin Lee1

  • 1Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang National University, Jinju 660-701, Republic of Korea.

Acta Crystallographica. Section E, Structure Reports Online
|January 2, 2015
PubMed
Summary
This summary is machine-generated.

The crystal structure of fenpropathrin, a pyrethroid insecticide, reveals specific molecular geometry. This analysis details bond angles and intermolecular interactions crucial for understanding its chemical properties and potential applications.

Keywords:
C—H⋯π inter­actionscrystal structurecyclo­propane­carboxyl­atefenpropathrinpyrethroid insecticide

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Area of Science:

  • Chemical Crystallography
  • Insecticide Chemistry

Background:

  • Fenpropathrin is a widely used pyrethroid insecticide.
  • Understanding the precise molecular structure of active ingredients is essential for optimizing their efficacy and safety.

Purpose of the Study:

  • To elucidate the detailed crystal structure of fenpropathrin.
  • To determine key dihedral angles and intermolecular interactions within the fenpropathrin molecule.

Main Methods:

  • Single-crystal X-ray diffraction analysis was employed.
  • The molecular and crystal structure was determined and refined.

Main Results:

  • The dihedral angle between the cyclopropane ring and carboxylate group is 88.25°.
  • The dihedral angle between the benzene and phenyl rings is 82.99°.
  • C-H⋯N hydrogen bonds and C-H⋯π interactions were identified, forming loop chains.

Conclusions:

  • The study provides precise structural data for fenpropathrin.
  • These findings contribute to the understanding of pyrethroid structure-activity relationships.