@article{Reactivity:2715,
      recid = {2715},
      author = {McNeece, Andrew John},
      title = {Secondary Sphere Effects on the Reactivity of Transition  Metal Complexes},
      publisher = {University of Chicago},
      school = {Ph.D.},
      address = {2020-12},
      pages = {208},
      abstract = {Transition metal catalysis is an important tool for  chemical synthesis and industrial transformations.  Utilizing secondary sphere effects and metal-ligand  cooperativity has led to greatly improved catalysis in many  different reactions, such as CO2 reduction or H2 evolution.  There are generally two major strategies for these  cooperative effects: redox activity and pendant  acidic/basic sites. In order to expand strategies for  secondary sphere effects, ligands were targeted that could  transfer both protons and electrons as either H-atoms or H2  equivalents or exert an electric field over a substrate  complex via distal charged groups. A 2,5-pyrrole pincer  scaffold was particularly attractive for the former  strategy, as it could be protonated on both arms and the  central pyrrole ring can undergo two-electron reduction and  oxidation to facilitate H2 gain and loss by the ligand. To  study and quantify electric field effects, a distally  anionic phosphine was synthesized, and the through-space  and through-bond contributions of the charge were  quantified through the Tolman Electronic Parameter and  phosphorus-selenium coupling.},
      url = {http://knowledge.uchicago.edu/record/2715},
      doi = {https://doi.org/10.6082/uchicago.2715},
}