Cover Feature: Similarities and Differences of Hydridic and Protonic Hydrogen Bonding (ChemPhysChem 17/2024)

The Cover Feature shows the hydridic hydrogen bond complex (Cp)(CO)₂RuH⋅⋅⋅ICF₃ (left) and the standard hydrogen bond complex IH⋅⋅⋅S(CH₂)₂ (right). Despite the different directions and natures of charge transfer, various characteristics (stabilization energy, red shift of X−H stretching frequency) of the two complexes are similar. The only difference is the dominant energy term: in the former complex, it is the dispersion term, whereas in the latter, it is the electrostatic term. More information can be found in the Research Article by P. Hobza and co-workers (DOI: 10.1002/cphc.202400403).