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Related Experiment Videos

Pressure-induced polymorphism in cyclopropylamine.

Patricia Lozano-Casal1, David R Allan, Simon Parsons

  • 1School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH93JJ, Scotland. p.lozano-casal@led.ac.uk

Acta Crystallographica. Section B, Structural Science
|November 25, 2005
PubMed
Summary
This summary is machine-generated.

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High pressure transforms cyclopropylamine into an orthorhombic crystal structure. Hydrogen bonds form chains parallel to the a axis, influencing crystal packing topology.

Area of Science:

  • Crystallography
  • Materials Science
  • Physical Chemistry

Background:

  • Cyclopropylamine is a strained cyclic amine with unique chemical properties.
  • Understanding its behavior under pressure is crucial for materials science applications.

Purpose of the Study:

  • To determine the crystal structure of cyclopropylamine at high pressure (1.2 GPa).
  • To analyze the hydrogen bonding and crystal packing topology of the high-pressure phase.

Main Methods:

  • X-ray diffraction was used to determine the crystal structure.
  • Voronoi-Dirichlet polyhedra and Hirshfeld surface analyses were employed.
  • Comparison with low-temperature structures was performed.

Main Results:

Related Experiment Videos

  • The high-pressure phase (1.2 GPa) exhibits an orthorhombic structure (space group Pbca).
  • Unit-cell dimensions are a = 5.0741 (10), b = 9.7594 (10), and c = 13.305 (2) A.
  • Hydrogen bonding forms chains parallel to the crystallographic a axis.

Conclusions:

  • The study elucidates the high-pressure structural behavior of cyclopropylamine.
  • Detailed analysis of hydrogen bonding and crystal packing provides insights into molecular interactions under pressure.