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Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups
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Aromaticity and Antiaromaticity in Zintl Clusters.

Chao Liu1,2,3, Ivan A Popov4, Zhongfang Chen5

  • 1School of Materials Science and Engineering, Rare Earth and Inorganic Functional Materials Center, Nankai University, Tianjin, 300350, P. R. China.

Chemistry (Weinheim an Der Bergstrasse, Germany)
|May 19, 2018
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Summary

Aromaticity and antiaromaticity concepts now explain structures and reactivity in Zintl clusters, guiding synthesis of these polyanions composed of Group 14 and 15 elements.

Keywords:
Zintl ionantiaromaticityaromaticitychemical bonding

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Area of Science:

  • Chemistry
  • Inorganic Chemistry
  • Materials Science

Background:

  • Aromaticity and antiaromaticity concepts traditionally explain stability in unsaturated organic compounds.
  • These concepts have expanded to diverse systems with delocalized electrons, including organometallics and inorganic clusters.
  • Zintl clusters, polyanions of Group 14 and 15 elements, represent a key area for applying these electronic theories.

Purpose of the Study:

  • To review recent advancements in applying aromaticity and antiaromaticity concepts to Zintl clusters.
  • To highlight how these concepts guide the experimental synthesis of novel Zintl cluster compounds.
  • To rationalize the geometrical and electronic structures of these polyanions using established aromaticity principles.

Main Methods:

  • Literature review of recent studies on Zintl clusters.
  • Analysis of theoretical and computational chemistry approaches used to assess electronic structures.
  • Correlation of synthetic strategies with predicted electronic properties based on aromaticity.

Main Results:

  • Demonstration of aromaticity and antiaromaticity principles successfully explaining Zintl cluster structures.
  • Identification of synthetic routes enabled by understanding these electronic concepts.
  • Rationalization of geometric distortions and electronic delocalization within these polyanions.

Conclusions:

  • Aromaticity and antiaromaticity are powerful, unifying concepts for understanding Zintl cluster chemistry.
  • These electronic principles are crucial for the rational design and synthesis of new inorganic polyanions.
  • The scope of aromaticity extends beyond traditional organic chemistry to complex inorganic systems.