The Synthesis and Crystal Structure of Aluminum Selenite Trihydrate, Al2(seO3)3.32O

Abstract

Aluminum selenite trihydrate, synthetic, M, = 488.88, trigonal, R32, a = 8.3806 (4) A, a = 65.527 (3)0, V = 466.2 Anstrom3, Z = 2, Dx = 3.48g/CM3, gamma (Mo K alpha) = 0.71073 Anstrom, micro = 119.7 cm-1, F(OOO) = 460, T = 298 (2) K, R = 4.48%, Rw = 5.10% for 556 observed reflections with I > 3sigma(I). Synthesized hydrothermally, A12(SeO3)3.3H20 consists of a 3-dimensional network of vertex-sharing octahedral A106 and pyramidal SeO3 groups, connected via Al-O- Se links. The three water molecules are coordinated by one of the aluminum atoms. The title compound is isostructural with Ga2(SeO3)3 3H20 and Cr2-(SeO3)3 H20, and is closely related to aluminum selenite hexahydrate, A12(SeO3)3 6H20.

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Document Details

Document Type
Technical Report
Publication Date
May 15, 1992
Accession Number
ADA251283

Entities

People

  • A. K. Cheetham
  • Galen D. Stucky
  • R. E. Morris
  • W. T. Harrison

Organizations

  • University of California, Santa Barbara

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Aluminum
  • Chemistry
  • Civil Engineering
  • Crystal Structure
  • Crystallography
  • Crystals
  • Diffraction
  • Military Research
  • Molecules
  • Reflection
  • State Governments
  • Surface Warfare
  • Three Dimensional
  • X Rays
  • X-Ray Crystallography
  • X-Ray Diffraction

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  • Analytical Mechanics
  • Electrochemical Engineering/ Fuel Cell Technologies
  • Materials Science and Engineering.