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Creators/Authors contains: "Miller, Alexander J."

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  1. ; ; ; ( , Inorganic Chemistry)
    Free, publicly-accessible full text available January 31, 2023
  2. ; ; ; ( , ACS Catalysis)
    Free, publicly-accessible full text available December 17, 2022
  3. ; ; ; ; ( , Journal of the American Chemical Society)
    Free, publicly-accessible full text available December 22, 2022
  4. ; ( , Journal of the American Chemical Society)
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  5. ; ; ; ; ; ( , Journal of the American Chemical Society)
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  6. ; ; ( , Journal of the American Chemical Society)
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  7. ; ; ; ; ; ( , Journal of the American Chemical Society)
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  8. ; ; ; ( , Chemical Society Reviews)
    The prevalence of transition metal-mediated hydride transfer reactions in chemical synthesis, catalysis, and biology has inspired the development of methods for characterizing the reactivity of transition metal hydride complexes. Thermodynamic hydricity represents the free energy required for heterolytic cleavage of the metal–hydride bond to release a free hydride ion, H − , as determined through equilibrium measurements and thermochemical cycles. Kinetic hydricity represents the rate of hydride transfer from one species to another, as measured through kinetic analysis. This tutorial review describes the common methods for experimental and computational determination of thermodynamic and kinetic hydricity, including advice on best practicesmore »and precautions to help avoid pitfalls. The influence of solvation on hydricity is emphasized, including opportunities and challenges arising from comparisons across several different solvents. Connections between thermodynamic and kinetic hydricity are discussed, and opportunities for utilizing these connections to rationally improve catalytic processes involving hydride transfer are highlighted.« less
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  9. ; ; ; ; ( , Chemical Science)
    A unique chain-rupturing transformation that converts an ether functionality into two hydrocarbyl units and carbon monoxide is reported, mediated by iridium( i ) complexes supported by aminophenylphosphinite (NCOP) pincer ligands. The decarbonylation, which involves the cleavage of one C–C bond, one C–O bond, and two C–H bonds, along with formation of two new C–H bonds, was serendipitously discovered upon dehydrochlorination of an iridium( iii ) complex containing an aza-18-crown-6 ether macrocycle. Intramolecular cleavage of macrocyclic and acyclic ethers was also found in analogous complexes featuring aza-15-crown-5 ether or bis(2-methoxyethyl)amino groups. Intermolecular decarbonylation of cyclic and linear ethers was observed whenmore »diethylaminophenylphosphinite iridium( i ) dinitrogen or norbornene complexes were employed. Mechanistic studies reveal the nature of key intermediates along a pathway involving initial iridium( i )-mediated double C–H bond activation.« less
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  10. ; ; ; ; ; ; ( , ACS Catalysis)
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