The following article will be submitted to the Journal of Chemical
Physics. It is thus not a peer-reviewed manuscript. After it is
hopefully accepted for publication, it will be found (in revised form)
at https://aip.scitation.org/journal/jcp<div><br></div><div>Transition metal-catalyzed reactions invariably include steps, where ligands associate or
dissociate. In order to obtain reliable energies for such reactions, sufficiently large basis sets need
to be employed. In this paper, we have used high-precision Multiwavelet calculations to compute
the metal-ligand association energies for 27 transition metal complexes with common ligands such
as H2, CO, olefins and solvent molecules. By comparing our Multiwavelet results to a variety of
frequently used Gaussian-type basis sets, we show that counterpoise corrections, which are widely
employed to correct for basis set superposition errors, often lead to underbinding. Additionally,
counterpoise corrections are difficult to employ, when the association step also involves a
chemical transformation. Multiwavelets, which can be conveniently applied to all types of
reactions, provide a promising alternative for computing electronic interaction energies free from
any basis set errors. <br></div>
Multiwavelets Applied to Metal-Ligand Interactions: Energies Free from Basis Set Errors
