An uncoordinatedly tertiary nitrogen based tricarboxylate Calcium network with Lewis acid-base dual catalytic sites for cyanosilylation of aldehydes

2020 ◽  
Author(s):  
Xian-Ming Zhang ◽  
Ying-Xia Wang ◽  
Hui-Min Wang ◽  
Pan Meng ◽  
Dong-Xia Song ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Efficient Method ◽  
High Efficiency ◽  
Acid Base ◽  
Catalytic Sites ◽  
Tertiary Nitrogen

The design and utilization of dual sites for synergistic catalysts has been recognised as an efficient method towards high-efficiency catalysis in the cyanosilylation of aldehydes, which gives the key intermediates...

Lewis Acid–Base Adduct Approach for High Efficiency Perovskite Solar Cells

2016 ◽  
Vol 49 (2) ◽  
pp. 311-319 ◽  
Author(s):  
Jin-Wook Lee ◽  
Hui-Seon Kim ◽  
Nam-Gyu Park
Keyword(s):  
Solar Cells ◽  
Lewis Acid ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Acid Base

Cleaving DNA-model phosphodiester with Lewis acid–base catalytic sites in bifunctional Zr–MOFs

2019 ◽  
Vol 48 (23) ◽  
pp. 8044-8048 ◽  
Author(s):  
Ying-Hua Zhou ◽  
Zhiyan Zhang ◽  
Margaret Patrick ◽  
Fan Yang ◽  
Rangling Wei ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Active Sites ◽  
Lewis Base ◽  
Zinc Hydroxide ◽  
Acid Base ◽  
Enhanced Activity ◽  
Nitrophenyl Phosphate ◽  
Catalytic Sites ◽  
Catalytic Active Sites ◽  
Hydrolysis Of

UiO-67-bpydc-Zn with isolated multi-catalytic active sites was fabricated as a catalyst for the hydrolysis of bis(p-nitrophenyl) phosphate as a DNA model. The enhanced activity may likely be attributed to the cooperation effects between the Lewis acid from the zirconium center at the node and the zinc hydroxide Lewis base in the linkers.

Magnetic cellulose–TiO2 nanocomposite microspheres for highly selective enrichment of phosphopeptides

2015 ◽  
Vol 51 (2) ◽  
pp. 338-341 ◽  
Author(s):  
Jiangjiang Duan ◽  
Xiaomei He ◽  
Lina Zhang
Keyword(s):  
Lewis Acid ◽  
High Efficiency ◽  
Acid Base ◽  
Selective Enrichment

Novel magnetic cellulose–TiO2 nanocomposite microspheres were prepared successfully by in situ synthesis of TiO2 nanoparticles in the micro/nanopores of cellulose–Fe3O4 microsphere, which exhibited highly selective enrichment of trace phosphopeptides, as a result of the high-efficiency Lewis acid–base reaction.

scholarly journals Enhanced perovskite electronic properties via a modified lead(ii) chloride Lewis acid–base adduct and their effect in high-efficiency perovskite solar cells

2017 ◽  
Vol 5 (10) ◽  
pp. 5195-5203 ◽  
Author(s):  
Ngoc Duy Pham ◽  
Vincent Tiing Tiong ◽  
Peng Chen ◽  
Lianzhou Wang ◽  
Gregory J. Wilson ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electronic Properties ◽  
Lewis Acid ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Acid Base

19% perovskite solar cells with enhanced electronic properties of MAPbI3film through employing 2.5% PbCl2additive in the precursor.

Electrochemical Oxidative Esterification of Thiophenols: Efficient Access to Sulfinic Esters

2020 ◽  
Vol 17 (7) ◽  
pp. 540-547
Author(s):  
Chun-Hui Yang ◽  
Cheng Wu ◽  
Jun-Ming Zhang ◽  
Xiang-Zhang Tao ◽  
Jun Xu ◽  
...  
Keyword(s):  
Organic Synthesis ◽  
Efficient Method ◽  
High Efficiency ◽  
Building Blocks ◽  
Constant Current ◽  
Good Efficiency ◽  
Oxidative Esterification ◽  
Efficient Access ◽  
New Applications ◽  
Sulfinic Esters

Background: The sulfinic esters are important and useful building blocks in organic synthesis. Objective: The aim of this study was to develop a simple and efficient method for the synthesis of sulfinic esters. Materials and Methods: Constant current electrolysis from thiols and alcohols was selected as the method for the synthesis of sulfinic esters. Results and Discussion: A novel electrochemical method for the synthesis of sulfinic esters from thiophenols and alcohols has been developed. Up to 27 examples of sulfinic esters have been synthesized using the current methods. This protocol shows good functional group tolerance as well as high efficiency. In addition, this protocol can be easily scaled up with good efficiency. Notably, heterocycle-containing substrates, including pyridine, thiophene, and benzothiazole, gave the desired products in good yields. A plausible reaction mechanism is proposed. Conclusion: This research not only provides a green and efficient method for the synthesis of sulfinic esters but also shows new applications of electrochemistry in organic synthesis. It is considered that this green and efficient synthetic protocol used to prepare sulfinic esters will have good applications in the future.

Solvation and redox properties of [Co(en)3]3+-[Co(en)3]2+ system

1980 ◽  
Vol 45 (2) ◽  
pp. 335-338 ◽  
Author(s):  
Adéla Kotočová ◽  
Ulrich Mayer
Keyword(s):  
Hydrogen Bond ◽  
Lewis Acid ◽  
Specific Interaction ◽  
Redox Properties ◽  
Solvation Effect ◽  
Interacting Particles ◽  
Acid Base ◽  
Polar Solvents ◽  
Oxidation Reduction ◽  
Solvent Molecules

The solvation effect of a number of nonaqueous polar solvents was studied on the oxidation-reduction properties of the [Co(en)3]3+-[Co(en)3]2+ system. Interactions of these ions with the solvent molecules are discussed in terms of their coordination, which is accompanied by a specific interaction of the Lewis acid-base type, namely formation of a hydrogen bond between the interacting particles. This is the main controlling factor of the redox properties of the studied system.

Chalcogen versus Dative Bonding in [SF3]+ Lewis Acid–Base Adducts: [SF3(NCCH3)2]+, [SF3(NC5H5)2]+, and [SF3(phen)]+ (phen = 1,10-phenanthroline)

2021 ◽  
Vol 60 (6) ◽  
pp. 3893-3901
Author(s):  
Douglas Turnbull ◽  
Praveen Chaudhary ◽  
Paul Hazendonk ◽  
Stacey D. Wetmore ◽  
Michael Gerken
Keyword(s):  
Lewis Acid ◽  
Acid Base
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