Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

alpha- and beta-CuAlCl(4): Framework Construction Using Corner-Shared Tetrahedral Metal-Halide Building Blocks.

James D. Martin1, Brian R. Leafblad, Roger M. Sullivan

  • 1Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695.

Inorganic Chemistry
|October 24, 2001
PubMed
Summary

Rapid quenching of copper aluminum chloride melts forms metastable beta-CuAlCl(4). Annealing induces a phase transition to stable alpha-CuAlCl(4), revealing channels for gas adsorption.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Structural Studies of a Borane-Modified Phosphate Diester Linkage: Ab Initio Calculations on the Dimethylboranophosphate Anion and the Single-Crystal X-ray Structure of Its Diisopropylammonium Salt.

Inorganic chemistry·2001
Same author

Benzene-Copper(I) Coordination in a Bimetallic Chain Complex.

Inorganic chemistry·2001
See all related articles

Area of Science:

  • Materials Science
  • Crystallography
  • Solid-state Chemistry

Background:

  • Copper aluminum chlorides (CuAlCl4) are compounds with potential applications in gas adsorption.
  • Understanding their structural properties and phase transitions is crucial for material design.

Purpose of the Study:

  • To determine the crystal structures of metastable beta-CuAlCl(4) and stable alpha-CuAlCl(4).
  • To investigate the phase transition mechanism between beta- and alpha-CuAlCl(4).
  • To explore the structural basis for gas adsorption properties.

Main Methods:

  • Single-crystal X-ray crystallography was used to determine the precise atomic arrangements.
  • Melt quenching and annealing were employed to synthesize different phases and induce transitions.

Related Experiment Videos

  • Solid solution formation (CuAlCl(4-x)Br(x)) was studied for both alpha and beta phases.

    • Main Results:

    • The metastable beta-CuAlCl(4) structure was solved (space group Pna2(1)) and found to derive from a hexagonal closest packed anion sublattice.
    • Annealing above 100°C led to a phase transition to the more stable alpha-CuAlCl(4) (space group P4̄2c).
    • Structures of alpha-CuAlCl(4) and alpha-CuAlBr(4) were determined, derived from cubic closest packed anion sublattices, and possess large van der Waals channels.

    Conclusions:

    • The study elucidates the distinct crystal structures of alpha- and beta-CuAlCl(4) and their relationship.
    • The phase transition mechanism is linked to cristobalite-type structures.
    • The identified van der Waals channels are proposed as key sites for reversible CO and ethylene adsorption.