The Impact of Second Coordination Sphere Methionine-Aromatic Interactions in Copper Proteins.
Sign Up to like & getrecommendations! Published in 2022 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.2c00030
Abstract: The interplay between the primary and secondary coordination spheres in biological metal sites plays an essential role in controlling their properties. Some of the clearest examples of this are from copper sites in blue and… read more here.
Keywords: copper; impact second; coordination; coordination sphere ... See more keywords
Second-Sphere Hydrogen-Bond Donors and Acceptors Affect the Rate and Selectivity of Electrochemical Oxygen Reduction by Iron Porphyrins Differently.
Sign Up to like & getrecommendations! Published in 2022 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.2c02170
Abstract: The factors that control the rate and selectivity of 4e-/4H+ O2 reduction are important for efficient energy transformation as well as for understanding the terminal step of respiration in aerobic organisms. Inspired by the design… read more here.
Keywords: hydrogen bond; rate selectivity; second sphere; rate ... See more keywords
Second-Sphere Effects in Dinuclear FeIIIZnII Hydrolase Biomimetics: Tuning Binding and Reactivity Properties.
Sign Up to like & getrecommendations! Published in 2018 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.7b02384
Abstract: Herein, we report the synthesis and characterization of two dinuclear FeIIIZnII complexes [FeIIIZnIILP1] (1) and [FeIIIZnIILP2] (2), in which LP1 and LP2 are conjugated systems containing one and two pyrene groups, respectively, connected via the… read more here.
Keywords: dinuclear feiiiznii; hydrolase biomimetics; effects dinuclear; second sphere ... See more keywords
Amine Groups in the Second Sphere of Iron Porphyrins Allow for Higher and Selective 4e-/4H+ Oxygen Reduction Rates at Lower Overpotentials.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.2c13552
Abstract: Iron porphyrins with one or four tertiary amine groups in their second sphere are used to investigate the electrochemical O2 reduction reaction (ORR) in organic (homogeneous) and aqueous (heterogeneous) conditions. Both of these complexes show… read more here.
Keywords: amine groups; iron porphyrins; iron; second sphere ... See more keywords
Can the Rate of a Catalytic Turnover Be Altered by Ligands in the Absence of Direct Binding Interactions?
Sign Up to like & getrecommendations! Published in 2024 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.4c01978
Abstract: Second sphere coordination effects ubiquitous in enzymatic catalysis occur through direct interactions, either covalent or non-covalent, with reaction intermediates and transition states. We present herein evidence of indirect second sphere coordination effects in which ligation… read more here.
Keywords: second sphere; absence direct; half cycles; rate catalytic ... See more keywords
Steering acidic oxygen reduction selectivity of single-atom catalysts through the second sphere effect
Sign Up to like & getrecommendations! Published in 2024 at "Nature Communications"
DOI: 10.1038/s41467-024-55116-x
Abstract: Natural enzymes feature distinctive second spheres near their active sites, leading to exquisite catalytic reactivity. However, incumbent synthetic strategies offer limited versatility in functionalizing the second spheres of heterogeneous catalysts. Here, we prepare an enzyme-mimetic… read more here.
Keywords: second sphere; oxygen reduction; selectivity; single atom ... See more keywords
Fluorescence-based detection of nitroaromatics using a luminescent second sphere adduct self-assembled by charge-assisted hydrogen bonds
Sign Up to like & getrecommendations! Published in 2018 at "CrystEngComm"
DOI: 10.1039/c7ce01743j
Abstract: Using second sphere interactions (outer sphere) by means of charge-assisted hydrogen bonds, a new Cd luminescent metal organic material has been prepared and successfully applied to the detection of trace amounts of nitrobenzene, 2-nitrotoluene and… read more here.
Keywords: detection; assisted hydrogen; hydrogen bonds; second sphere ... See more keywords
A dicationic distibine stabilized by intramolecular π-π interaction and second-sphere coordination.
Sign Up to like & getrecommendations! Published in 2025 at "Chemical communications"
DOI: 10.1039/d5cc01730k
Abstract: A new type of pincer ligand (1) featuring an Sb(I) center and two pendent amine arms has been developed. The single electron oxidation of 1 produces a dicationic distibine (2). Crystallographic and computational investigations indicate… read more here.
Keywords: dicationic distibine; sphere coordination; distibine stabilized; second sphere ... See more keywords
Road-blocker HSP disease mutation disrupts pre-organization for ATP hydrolysis in kinesin through a second sphere control
Sign Up to like & getrecommendations! Published in 2022 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.2215170120
Abstract: Significance Kinesin, an amazing biological machine, converts chemical energy from the ATP hydrolysis into mechanical energy to perform different cellular activities. Several single-point gene-level mutations in the neuronal kinesin motor (KIF5A) are linked to a… read more here.
Keywords: pre organization; kinesin second; second sphere; atp hydrolysis ... See more keywords