Title

Palladium complexes bearing κ²-N,N and κ³-N,N,O pendant amine bis(phenolate) ligands

Authors

Brendan J. Graziano, Ohio Northern University
Eric M. Collins, Ohio Northern University
Nathaniel C. McCutcheon, Ohio Northern UniversityFollow
Claire L. Griffith, Ohio Northern UniversityFollow
Nicole M. Braunscheidel, Ohio Northern UniversityFollow
Trilisa M. Perrine, Ohio Northern UniversityFollow
Bradley M. Wile, Ohio Northern UniversityFollow

Document Type

Article

Recommended Citation

Graziano, B. J.; Collins, E. M.; McCutcheon, N. M.; Griffith, C. L.; Braunscheidel, N. M.; Perrine, T. M.; Wile, B. M. “Palladium complexes bearing κ²-N,N and κ³-N,N,O pendant amine bis(phenolate) ligands.” Inorg. Chim. Acta. 2019, 484, 185-196.

Abstract

The synthesis and characterization of ten new palladium(II) amine bis(phenolate) complexes is reported. Solution and single-crystal X-ray diffraction studies reveal the presence of both κ²-N,N and κ³-N,N,O binding modes in these square planar complexes. For complexes with sterically less demanding phenolate donors, addition of external acidic or basic reagents allows for the selective masking of a coordination site at Pd. Complexes bearing bulky cumyl substituents on phenolate donors exhibited unusual ¹H NMR spectroscopic features that are consistent with an anagostic interaction with the palladium center. Computational analysis at the ωB97X-D/LAN2LDZ level of theory supported the assertion that such an anagostic interaction may play a role in stabilizing κ² complexes bearing a cumyl-substituted amine bis(phenolate) ligand. X-ray crystallographic data for H₂1a-PdCl₂, H₂2a-PdCl₂, H1b-PdCl, H2b-PdCl, H1d-PdCl, and H1e-PdCl are reported.

Publication Date

1-2019

DOI

10.1016/j.ica.2018.09.032

Notes

This article was published in Inorganica Chimica Acta. The article can be accessed on the journal's website by using the following linked text.