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Relativity, gold, closed-shell interactions, and CsAu.NH3.

Pekka Pyykkö1

  • 1Department of Chemistry, University of Helsinki P.O.B. 55 (A.I. Virtasen aukio 1), 00014 Helsinki (Finland) Fax: (+358) 9-191-50169.

Angewandte Chemie (International Ed. in English)
|October 9, 2002
PubMed
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Relativistic effects significantly impact gold

Area of Science:

  • Inorganic Chemistry
  • Relativistic Quantum Chemistry

Background:

  • Gold's chemical properties are notably affected by relativistic effects.
  • These effects contribute to gold's high electronegativity.
  • This explains the stability of compounds containing gold anions, such as cesium auride (CsAu).

Purpose of the Study:

  • To discuss the structure and bonding of cesium auride ammonia (CsAu.NH3).
  • To explore the influence of relativistic effects on gold's chemical behavior.
  • To outline potential avenues for discovering new auride compounds.

Main Methods:

  • Theoretical analysis of chemical properties.
  • Discussion of relativistic quantum mechanical calculations (implied).
  • Structural and bonding analysis of CsAu.NH3.

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Main Results:

  • Relativistic effects are crucial for understanding gold's chemistry.
  • Cesium auride (CsAu) and related compounds with Au(-) ions are stabilized by gold's high electronegativity.
  • The compound CsAu.NH3 exhibits unique structural and bonding characteristics.

Conclusions:

  • Relativistic effects are fundamental to gold's chemical reactivity and compound stability.
  • The study highlights CsAu.NH3 as a significant example of auride chemistry.
  • Further exploration of aurides is promising for discovering novel gold-containing materials.