AI Article Synopsis
- The study focuses on the resurgence of understanding how homochirality arises in nature through heterogeneous reactions involving inorganic crystals.
- Researchers successfully grew PdGa single crystals with varying chiral lattices, enabling the enantioselective recognition of the amino acid DOPA using a novel mechanism based on orbital angular momentum (OAM) polarization.
- The findings suggest that the unique interaction between the crystal's orbitals and DOPA provides insights into the origins of chirality in nature, highlighting a potential pathway for achieving enantioselectivity using inorganic materials.
Article Abstract
The study of heterogeneous reactions for enantiomeric processes based on inorganic crystals has been resurgent in recent years. However, the question remains how homochirality develops in nature and chemical reactions. Here, the successful growth of B20 group PdGa single crystals with different chiral lattices enabled us to achieve enantioselective recognition of 3,4-dihydroxyphenylalanine (DOPA) based on a new mechanism, namely orbital angular momentum (OAM) polarization. The orbital textures of PdGa crystals indicate large OAM polarization near the Fermi level and carrying opposite signs. A positive or negative magnetization in the [111] direction is expected depending on the chiral lattice of PdGa crystals. Due to this, the adsorption energies of PdGa crystals and DOPA molecules differ depending on how well the O-2p orbital of DOPA pairs with the Pd-4d orbital of PdGa. The results provide one possible explanation for how chirality arises in nature by providing an enantioselective route with pure inorganic crystals.
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| http://dx.doi.org/10.1002/anie.202303296 | DOI Listing |
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