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Reductively Stable Hydrogen-Bonding Ligands Featuring Appended CF₂-H Units.

ABSTRACT: We present the development of ligands featuring the unconventional hydrogen bond donor, -CF₂H, within a metal's secondary coordination sphere. When metalated with palladium, o-CF₂H-functionalized 1,10-phenanthroline provides highly directed H-bonding interactions with Pd-coordinated substrates. Spectroscopic and computational analyses with a series of X-type ligand acceptors (-F, -Cl, -Br, -OR) establish the H-bonding interaction strength for the -CF₂H group (∼3 kcal/mol). The synthesis of Pd⁰/Ni⁰ complexes and subsequent coupling (Ni) highlight the unique reductive and base compatibility of the -CF₂H hydrogen bond donor group.

SUBMITTER: Shanahan JP

PROVIDER: S-EPMC8640959 | biostudies-literature |

REPOSITORIES: biostudies-literature

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