More Like this

1. Generality and Strength of Transition Metal β-Effects

   https://doi.org/10.1021/jacs.8b06817  

   Haines, Brandon E.; Sarpong, Richmond; Musaev, Djamaladdin G. (July 2018, Journal of the American Chemical Society)
2. Morphometric description of strength and degradation in porous media

   https://doi.org/10.1016/j.ijsolstr.2022.111454  

   Guével, A.; Rattez, H.; Veveakis, E. (April 2022, International Journal of Solids and Structures)
3. Methyl‐π Interactions. Nature of Bonding and Limits of Strength

   https://doi.org/10.1002/chem.202404712  

   Scheiner, Steve (February 2025, Chemistry – A European Journal)

   Abstract Both methyl groups and benzene rings are exceedingly common, and they lie near one another in many chemical situations. DFT calculations are used to gauge the strength of the attractive forces between them, and to better understand the phenomena that underlie this attraction. Methane and benzene are taken as the starting point, and substituents of both electron‐withdrawing and donating types are added to each. The interaction energy varies between 1.4 and 5.0 kcal/mol, depending upon the substituents placed on the two groups. The nature of the binding is analyzed via Atoms in Molecules (AIM), Natural Bond Orbital (NBO), Symmetry‐Adapted Perturbation Theory (SAPT), nuclear magnetic resonance (NMR) chemical shifts, and electron density shift diagrams. While there is a sizable electrostatic component, it is dispersion that dominates these interactions, particularly the weaker ones. As such, these interactions cannot be categorized unambiguously as either H‐bonds or tetrel bonds. 

   more » « less
4. The flexural strength of bonded ice

   https://doi.org/10.5194/tc-15-2957-2021  

   Murdza, Andrii; Polojärvi, Arttu; Schulson, Erland M.; Renshaw, Carl E. (January 2021, The Cryosphere)

   Abstract. The flexural strength of ice surfaces bonded by freezing, termedfreeze bond, was studied by performing four-point bending tests of bondedfreshwater S2 columnar-grained ice samples in the laboratory. The sampleswere prepared by milling the surfaces of two ice pieces, wetting two of thesurfaces with water of varying salinity, bringing these surfaces together,and then letting them freeze under a compressive stress of about 4 kPa. Thesalinity of the water used for wetting the surfaces to generate the bondvaried from 0 to 35 ppt (parts per thousand). Freezing occurred in air under temperatures varyingfrom −25 to −3 ∘C over periods that varied from 0.5 to∼ 100 h. Results show that an increase in bond salinity ortemperature leads to a decrease in bond strength. The trend for the bondstrength as a function of salinity is similar to that presented in Timco andO'Brien (1994) for saline ice. No freezing occurs at −3 ∘C oncethe salinity of the water used to generate the bond exceeds ∼ 25 ppt. The strength of the saline ice bonds levels off (i.e., saturates)within 6–12 h of freezing; bonds formed from freshwater reach strengthsthat are comparable or higher than that of the parent material in less than0.5 h. 

   more » « less
5. Intrinsic and Extrinsic Tunability of Double-Network Hydrogel Strength and Lubricity

   https://doi.org/10.1021/acsami.3c00949  

   Lee, Ming Jun; Espinosa-Marzal, Rosa M. (April 2023, ACS Applied Materials & Interfaces)