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Y(21)I(18)C(14)B(7): Synthesis, Average Structure, and Structural Misfit.

Oliver Oeckler1, Viola Duppel, Hansjürgen Mattausch

  • 1Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany.

Inorganic Chemistry
|October 24, 2001
PubMed
Summary
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A new compound, Y(21)I(18)C(14)B(7), was synthesized and its crystal structure analyzed. The complex structure features twisted metal layers with CBC units, sandwiched between iodine layers, requiring a large triclinic unit cell.

Area of Science:

  • Solid-state chemistry
  • Materials science
  • Crystallography

Background:

  • The synthesis of novel compounds with complex structures is crucial for advancing materials science.
  • Understanding the precise atomic arrangement in new materials informs their potential applications.

Purpose of the Study:

  • To synthesize and characterize the novel compound Y(21)I(18)C(14)B(7).
  • To determine the average crystal structure and investigate deviations from this average.

Main Methods:

  • Single-crystal X-ray diffraction was used to determine the average crystal structure.
  • High-resolution electron microscopy was employed to identify deviations from the averaged structure.

Main Results:

  • The compound Y(21)I(18)C(14)B(7) was successfully prepared at 1450 K.

Related Experiment Videos

  • The crystal structure exhibits pseudoorthorhombic metal double layers with quasi-molecular CBC units, sandwiched by pseudohexagonal iodine layers.
  • A large triclinic unit cell (space group P1) was required, likely representing a space-averaged approximation, with deviations indicated by electron microscopy.

    • Conclusions:

    • The complex structure of Y(21)I(18)C(14)B(7) presents challenges for crystallographic description.
    • Deviations from the average structure suggest complex atomic ordering or disorder, warranting further investigation.