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Updated: Jul 3, 2025
08:46
Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of PhosphorusI
Published on: November 22, 2016
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Spodium bonding in bis(alkynyl)mecurials.
Chee S Onn1, Anthony F Hill1, Jas S Ward1,2
1Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory, ACT 2601, Australia. a.hill@anu.edu.au.
Chemical Communications (Cambridge, England)
|February 12, 2024
Summary
A novel mercury compound, bis(alkynyl)mercurial, forms adducts with fluoride and phenanthroline. These structures reveal insights into two-coordinate mercury and spodium bonding interactions.
Area of Science:
- Organometallic Chemistry
- Coordination Chemistry
- Inorganic Chemistry
Background:
- Bis(alkynyl)mercurials are a class of organometallic compounds.
- Understanding mercury's coordination behavior is crucial in inorganic chemistry.
Purpose of the Study:
- To synthesize and characterize a new bis(alkynyl)mercurial complex.
- To investigate the coordination behavior of two-coordinate mercury.
- To explore novel bonding interactions, specifically spodium bonding.
Main Methods:
- Synthesis of the novel mercury complex Hg{C ue002CSeC ue002W(CO)2(Tp*)}2.
- Formation and structural characterization of adducts with fluoride and phenanthroline using X-ray crystallography.
- Analysis of the electronic structure and bonding in the adducts.
Main Results:
- The successful synthesis of the bis(alkynyl)mercurial Hg{C ue002CSeC ue002W(CO)2(Tp*)}2.
- Formation of stable adducts with fluoride and phenanthroline.
- Structural elucidation revealing two-coordinate mercury centers within the adducts.
- Interpretation of the mercury's electronic environment as a σ-toroid facilitating spodium bonding.
Conclusions:
- The new bis(alkynyl)mercurial complex exhibits unique coordination properties.
- Two-coordinate mercury can participate in significant non-covalent interactions, termed spodium bonding.
- The observed σ-toroid structure is key to understanding this novel bonding mode.
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