Experimental and theoretical studies on hydrogen bond-promoted fixation of carbon dioxide and epoxides in cyclic carbonates

2012 ◽  
Vol 14 (31) ◽  
pp. 11021 ◽  
Author(s):  
Jin-Quan Wang ◽  
Jian Sun ◽  
Wei-Guo Cheng ◽  
Kun Dong ◽  
Xiang-Ping Zhang ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Bond ◽  
Theoretical Studies ◽  
Cyclic Carbonates ◽  
Experimental And Theoretical Studies ◽  
Fixation Of Carbon Dioxide

Pyridine-bridged bifunctional organocatalysts for the synthesis of cyclic carbonates from carbon dioxide

2019 ◽  
Vol 43 (7-8) ◽  
pp. 248-256
Author(s):  
Quan-Yao Liu ◽  
Lei Shi ◽  
Ning Liu
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Bond ◽  
Cycloaddition Reaction ◽  
Carboxyl Groups ◽  
Cyclic Carbonates ◽  
Reaction Conditions ◽  
Halide Anions ◽  
Simple Filtration ◽  
Hydrogen Bond Donors

Hydroxyl- and carboxyl-functionalized imidazolium halides are used as efficient bifunctional organocatalysts for the synthesis of cyclic carbonates from CO2 and epoxides under mild reaction conditions. Control experiments suggest that the cycloaddition reaction is realized by the combination of the nucleophilic halide anions with hydroxyl and carboxyl groups as hydrogen bond donors. Moreover, the bifunctional organocatalysts can be easily recycled five times by simple filtration; however, a loss of activity was observed.

Insights into hydrogen bond donor promoted fixation of carbon dioxide with epoxides catalyzed by ionic liquids

2015 ◽  
Vol 17 (8) ◽  
pp. 5959-5965 ◽  
Author(s):  
Mengshuai Liu ◽  
Kunqi Gao ◽  
Lin Liang ◽  
Fangxiao Wang ◽  
Lei Shi ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Bond ◽  
Ionic Liquids ◽  
Bond Activation ◽  
Cycloaddition Reaction ◽  
Dft Studies ◽  
Hydrogen Bond Donor ◽  
Fixation Of Carbon Dioxide

Experimental and DFT studies demonstrated that additional EG could cooperate with ILs to facilitate the cycloaddition reactionviahydrogen bond activation.

Bifunctional Aluminum Catalysts for the Chemical Fixation of Carbon Dioxide into Cyclic Carbonates

2018 ◽  
Vol 6 (4) ◽  
pp. 5322-5332 ◽  
Author(s):  
Felipe de la Cruz-Martínez ◽  
Javier Martínez ◽  
Miguel A. Gaona ◽  
Juan Fernández-Baeza ◽  
Luis F. Sánchez-Barba ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Chemical Fixation ◽  
Cyclic Carbonates ◽  
Fixation Of Carbon Dioxide

Experimental and Theoretical Studies on the Reduction of CO2 to CO with Chloro(methyl)disilane Components from the Direct Process

Synlett ◽  
2017 ◽  
Vol 28 (18) ◽  
pp. 2439-2444 ◽  
Author(s):  
Frank Jensen ◽  
Troels Skrydstrup ◽  
Mathias Flinker ◽  
Sara Lopez ◽  
Dennis Nielsen ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Dft Calculations ◽  
Theoretical Studies ◽  
Direct Process ◽  
Industrial Synthesis ◽  
Reduce Carbon Dioxide ◽  
Reduction Of Co2 ◽  
Fluoride Salts ◽  
Experimental And Theoretical Studies

Three disilanes, (CH3)3SiSi(CH3)3, Cl(CH3)2SiSi(CH3)2Cl, and Cl2(CH3)SiSi(CH3)Cl2, all representing components of the Direct Process residue for the industrial synthesis of chloromethylsilanes, were evaluated for their abilities to reduce carbon dioxide to carbon monoxide upon treatment with fluoride salts. In particular, Cl(CH3)2SiSi(CH3)2Cl proved to be highly efficient upon the use of stoichiometric amounts of potassium bifluoride. DFT calculations performed on the reduction steps with (CH3)3SiSi(CH3)3 and fluorinated analogues of this disilane suggest that the previously proposed pathway involving an intermediate silacarboxylic acid is plausible.

Seasonal carbon dioxide exchange between the regolith and atmosphere of Mars: Experimental and theoretical studies

1982 ◽  
Vol 87 (B12) ◽  
pp. 10215 ◽  
Author(s):  
Fraser P. Fanale ◽  
W. Bruce Banerdt ◽  
R. Steven Saunders ◽  
L. A. Johansen ◽  
James R. Salvail
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Exchange ◽  
Theoretical Studies ◽  
Experimental And Theoretical Studies
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