Hydrogen bonds to coinage metals
In collaboration with Prof. Roithová (Radboud University) and Prof. Růžička (University of Pardubice), we published a series of papers dealing with inter- and intra-molecular interactions in gold(I) systems and in their silver(I) and copper(I) counterparts. We resolved the decades-old unsolved question of the existence of the Au(I)···H hydrogen bond.1 A novel type of intramolecular Au(I)···H+–N hydrogen bonding was characterized by spectroscopy and computations and provided undeniable proof of Au(I)···H bonding.
Inspired by the confirmed existence of Au(I)···H hydrogen bonds we now pursue a bold proposal of hydrogen bonding to Ag(I). Our theoretical predictions show that such compounds may exist.2 Preliminary experimental results indeed reveal Ag(I)···H bonds detected by means of gas-phase infrared and solution NMR spectroscopies (unpublished results).
References:
1. Straka, M.; Andris, E.; Vícha, J.; Růžička, A.; Roithová, J.; Rulíšek, L. Spectroscopic and Computational Evidence of Intramolecular AuI⋅⋅⋅H+–N Hydrogen Bonding. Angew. Chem. Int. Ed. 2019, 58 (7), 2011–2016. https://doi.org/10.1002/anie.201811982
2. Andris, E.; Straka, M.; Vrána, J.; Růžička, A.; Roithová, J.; Rulíšek, L. Can Copper(I) and Silver(I) Be Hydrogen Bond Acceptors? Chem. Eur. J. 2023, 29 (26), e202203769. https://doi.org/10.1002/chem.202203769