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Unveiling distinct bonding patterns in noble gas hydrides via interference energy analysis
Lucas Araujo1,2, Marco A C Nascimento1, Thiago M Cardozo1
1Instituto de Química, Universidade Federal do Rio de Janeiro, Av. Athos da Silveira Ramos, 149, CT, A-622, Cid. Univ., Rio de Janeiro, RJ 21941-909, Brazil. thiago@iq.ufrj.br.
Noble gas hydride ions (NgH+) exhibit unique bonding. Quantum interference drives bond formation, but electron charge transfer leads to covalent bonds in HeH+ and ArH+, while NeH+ forms a dative bond.
Area of Science:
- Theoretical Chemistry
- Quantum Chemistry
- Chemical Bonding
Background:
- Noble gas hydride ions (NgH+) present unique bonding challenges.
- Their electronic structures and bond dissociation profiles are complex.
Purpose of the Study:
- Investigate the chemical bond nature in NgH+ (Ng = He, Ne, Ar).
- Utilize modern valence bond calculations and interference energy analysis.
Main Methods:
- Modern valence bond calculations.
- Interference energy analysis.
Main Results:
- Energy well formation is driven by kinetic energy reduction via quantum interference.
- HeH+ and ArH+ exhibit Ng+-H covalent bonds due to electron charge transfer.
- NeH+ shows a dative bond, favoring a Ne + H+ valence bond structure.
Conclusions:
- Distinct bonding mechanisms exist within the NgH+ series.
- Quantum interference and quasi-classical effects interplay in noble gas molecules.
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