AI Article Synopsis
- Metal hydride-hydroxide hydrogen-bonded clusters (HMOH(HO)) involving aluminum (Al) and gallium (Ga) play a crucial role in metal-water reactions, but their structure is hard to study experimentally due to size selection issues.
- Researchers successfully created and analyzed these neutral HMOH(HO) clusters using advanced techniques like laser-vaporization and spectroscopy, revealing complex hydrogen-bonded structures.
- The study shows that forming these clusters is both energetically favorable and easy to achieve in the gas phase, providing a valuable model for understanding metal interactions with water and exploring various chemical reactions.
Article Abstract
Metal hydride-hydroxide hydrogen-bonded clusters HMOH(HO) are key intermediates in the reactions of metals with water. However, characterizing the structure of such neutral clusters is a challenging experimental goal due to the difficulty of size selection. Here, neutral HMOH(HO) (M = Al and Ga) clusters were prepared by using a laser-vaporization source and characterized by size-specific infrared-vacuum ultraviolet spectroscopy combined with quantum chemical calculations and molecular dynamics simulations. The HMOH(HO) (M = Al and Ga) clusters were found to have intriguing hydrogen-bonded network structures. The results indicate that the formation of HMOH(HO) (M = Al and Ga) is both thermodynamically exothermic and kinetically facile in the gas phase. The present system serves as a model for capturing key intermediates in metal-water reactions and also opens up new avenues for systematic studies of a large variety of reactions between neutral metal atoms/clusters and small molecules.
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| http://dx.doi.org/10.1039/d4nr03440f | DOI Listing |
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