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1. Pushing the limits of the hydrogen bond enhanced halogen bond—the case of the C–H hydrogen bond

   https://doi.org/10.1039/d2sc03792k  

   Decato, Daniel A. ; Sun, Jiyu ; Boller, Madeleine R. ; Berryman, Orion B. ( September 2022 , Chemical Science)

   C–H hydrogen bonds to iodine halogen bond donors are shown to improve halogen bonding and molecular preorganization. 

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2. Coordination-Induced Weakening of a C(sp3)–H Bond: Homolytic and Heterolytic Bond Strength of a CH–Ni Agostic Interaction

   https://doi.org/10.1021/jacs.2c05667  

   Lin, Lirong ; Spasyuk, Denis M. ; Lalancette, Roger A. ; Prokopchuk, Demyan E. ( July 2022 , Journal of the American Chemical Society)

   The scission of a C(sp3)−H bond to form a new metal−alkyl bond is a fundamental step in coordination chemistry and catalysis. However, the extent of C−H bond weakening when this moiety interacts with a transition metal is poorly understood and quantifying this phenomenon could provide insights into designing more efficient C−H functionalization catalysts. We present a nickel complex with a robust adamantyl reporter ligand that enables the measurement of C−H acidity (pKa) and bond dissociation free energy (BDFE) for a C(sp3)−H agostic interaction, showing a decrease in pKa by dozens of orders of magnitude and BDFE decrease of about 30 kcal/mol upon coordination. X-ray crystallographic data is provided for all molecules, including a distorted square planar NiIII metalloradical and “doubly agostic” NiII(κ2-CH2) complex. 

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3. Reversible Homolysis of a Carbon–Carbon σ-Bond Enabled by Complexation-Induced Bond-Weakening

   https://doi.org/10.1021/jacs.2c01229  

   Kim, Suhong ; Chen, Pan-Pan ; Houk, K. N. ; Knowles, Robert R. ( August 2022 , Journal of the American Chemical Society)
4. Metal–Metal (MM) Bond Distances and Bond Orders in Binuclear Metal Complexes of the First Row Transition Metals Titanium Through Zinc

   https://doi.org/10.1021/acs.chemrev.8b00297  

   Duncan Lyngdoh, Richard H. ; Schaefer, Henry F. ; King, R. Bruce ( December 2018 , Chemical Reviews)
5. The Bond Dissociation Energy of the N–O Bond

   https://doi.org/10.1021/acs.jpca.1c02741  

   Bach, Robert D. ; Schlegel, H. Bernhard ( June 2021 , The Journal of Physical Chemistry A)