M©BO (M = Ni, Pd, Pt): aromatic molecular stars with a planar heptacoordinate transition metal.

Chem Commun (Camb)

Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Molecular Science, Shanxi University, Taiyuan 030006, People's Republic of China.

Published: December 2021

AI Article Synopsis

  • - The global minima M©BO (where M = Nickel, Palladium, or Platinum) have a unique stability due to their σ-aromaticity in the BM core region.
  • - This σ-aromaticity results from strong π back-bonding from oxygen to boron, allowing for a more localized interaction.
  • - As a consequence, the delocalized π back-bonding from the metal (M) to boron is less favorable compared to the localized bonding, affecting the overall stability.

Article Abstract

The dynamically stable global minima M©BO (M = Ni, Pd, Pt) are interesting in that they possess σ-aromaticity alone within the BM core moiety, which can be attributed to the strong peripheral localized O → B π back-bonding that leads to the less favourable delocalized M → B π back-bonding over the BM core moiety.

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Source
http://dx.doi.org/10.1039/d1cc05844dDOI Listing

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