Lewis Acid Strength of Interfacial Metal Sites Drives CH 3 OH Selectivity and Formation Rates on Cu‐Based CO 2 Hydrogenation Catalysts

2021 ◽  
Vol 133 (17) ◽  
pp. 9736-9745
Author(s):  
Gina Noh ◽  
Erwin Lam ◽  
Daniel T. Bregante ◽  
Jordan Meyet ◽  
Petr Šot ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Acid Strength ◽  
Hydrogenation Catalysts

Lewis Acid Strength of Interfacial Metal Sites Drives CH 3 OH Selectivity and Formation Rates on Cu‐Based CO 2 Hydrogenation Catalysts

2021 ◽  
Vol 60 (17) ◽  
pp. 9650-9659
Author(s):  
Gina Noh ◽  
Erwin Lam ◽  
Daniel T. Bregante ◽  
Jordan Meyet ◽  
Petr Šot ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Acid Strength ◽  
Hydrogenation Catalysts

Empirical Lewis acid strengths for 135 cations bonded to oxygen

2017 ◽  
Vol 73 (5) ◽  
pp. 956-961 ◽  
Author(s):  
Olivier Charles Gagné ◽  
Frank Christopher Hawthorne
Keyword(s):  
Lewis Acid ◽  
Strong Correlation ◽  
Ionization Energy ◽  
Acid Strength ◽  
Lewis Base

New and updated Lewis acid strengths are listed for 135 cations bonded to oxygen for use with published Lewis base strengths. A strong correlation between Lewis acid strength and ionization energy is shown, and correlation with electronegativity is confirmed.

INFRARED SPECTRA OF 2,6-DIMETHYL-4-PYRONE COMPLEXES

1961 ◽  
Vol 39 (6) ◽  
pp. 1184-1189 ◽  
Author(s):  
Denys Cook
Keyword(s):  
Complex Formation ◽  
Oxygen Atom ◽  
Carbonyl Group ◽  
Lewis Acid ◽  
Frequency Band ◽  
Infrared Spectra ◽  
Donor Site ◽  
Carbonyl Oxygen ◽  
Acid Strength ◽  
Group A

The infrared spectra of 2,6-dimethyl-4-pyrone in solution, and in complexes with HgCl2, ZnCl2, BF3, SbCl5, and HBr have been recorded. A band at 1639 cm−1 in the free pyrone moves to progressively lower frequencies in the complexes as the Lewis acid strength increases, identifying this band as the carbonyl stretching frequency and the donor site as the carbonyl group. A higher-frequency band, at 1678 cm−1 in the free pyrone, moves to lower frequency on complex formation, but to a much smaller extent, and is to be identified with a stretching mode of the ring. The site of protonation in 2,6-dimethyl-4-pyrone salts has been unequivocally shown to be the carbonyl oxygen atom.

Electronegativity and Lewis acid strength

1990 ◽  
Vol 112 (9) ◽  
pp. 3401-3403 ◽  
Author(s):  
I. D. Brown ◽  
A. Skowron
Keyword(s):  
Lewis Acid ◽  
Acid Strength

ChemInform Abstract: Electronegativity and Lewis Acid Strength.

ChemInform ◽  
1990 ◽  
Vol 21 (33) ◽  
Author(s):  
I. D. BROWN ◽  
A. SKOWRON
Keyword(s):  
Lewis Acid ◽  
Acid Strength

Characterization of coal hydrogenation catalysts. Determination of acid strength distribution

Fuel ◽  
1988 ◽  
Vol 67 (6) ◽  
pp. 803-807 ◽  
Author(s):  
Maria T. Martinez ◽  
Maria D. Martinez ◽  
J. Osácar ◽  
JoséL. Miranda
Keyword(s):  
Acid Strength ◽  
Strength Distribution ◽  
Hydrogenation Catalysts ◽  
Acid Strength Distribution

Borane catalyzed polymerization and depolymerization reactions controlled by Lewis acid strength

2021 ◽  
Author(s):  
Kori Anne Andrea ◽  
Mikhailey Diane Wheeler ◽  
Francesca M. Kerton
Keyword(s):  
Lewis Acid ◽  
Acid Strength ◽  
Block Copolymerization ◽  
Catalyzed Polymerization

Triphenylborane catalyzes the polymerization of anhydrides and epoxides along with the block copolymerization of anhydride/ epoxides with epoxides/CO2. Switching to the more Lewis acidic borane, tris(pentafluorophenyl)borane, the carbonate block of...

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