Covalent and noncovalent interactions between boron and argon: An infrared photodissociation spectroscopic study of argon-boron oxide cation complexes
Jin, Jiaye
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https://hdl.handle.net/2142/97184
Description
Title
Covalent and noncovalent interactions between boron and argon: An infrared photodissociation spectroscopic study of argon-boron oxide cation complexes
Author(s)
Jin, Jiaye
Contributor(s)
Zhou, Mingfei
Wang, Guanjun
Li, Wei
Issue Date
2017-06-20
Keyword(s)
Fundamental interest
Abstract
Although a wide range of compounds of the heavy rare-gas elements are experimentally known, very few chemically bound molecules have been experimentally observed for the lighter noble gases. Here we report a combined infrared photodissociation spectroscopic and theoretical study on a series of argon-boron oxide cation complexes prepared via a laser vaporization supersonic ion source in the gas phase. Infrared spectroscopic combined with state-of-the-art quantum chemical calculations indicate that the chem{[ArB_3O_{4,5}]^+}, chem{[ArB_4O_{5-7}]^+} and chem{[ArB_5O_7]^+} cation complexes have planar structures each involving an aromatic boroxol ring and an argon-boron covalent bond formed between the in-plane 2p atomic orbitals of Ar and boron. In contrast, the chem{[ArB_3O_4]^+} cation complex is characterized to be a weakly bound complex with a BO chain structure.
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