Octahedral Cobalt(III) Complex Based on Cheap 1,2-Phenylenediamine as a Bifunctional Metal-Templated Hydrogen Bond Donor Catalyst for Fixation of CO2 with Epoxides at Ambient Conditions

2021 ◽  
Author(s):  
Mikhail A. Emelyanov ◽  
Nadezhda V. Stoletova ◽  
Alexey A. Lisov ◽  
Michael Medvedev ◽  
Alexander F. Smol’yakov ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Synthetic Chemistry ◽  
Ambient Conditions ◽  
Hydrogen Bond Donor ◽  
Privileged Class ◽  
Hydrogen Bond Donors

Hydrogen bond donors (HBD) are a sustainable privileged class of catalysts which are broadly used for the activation of compounds in synthetic chemistry. Among them, the metal-templated HBD complexes present...

scholarly journals New approaches to organocatalysis based on C–H and C–X bonding for electrophilic substrate activation

2016 ◽  
Vol 12 ◽  
pp. 2834-2848 ◽  
Author(s):  
Pavel Nagorny ◽  
Zhankui Sun
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Recent Progress ◽  
Halogen Bonds ◽  
Hydrogen Bond Donor ◽  
New Approaches ◽  
Substrate Activation ◽  
Non Covalent Interactions ◽  
Covalent Interactions ◽  
Hydrogen Bond Donors

Hydrogen bond donor catalysis represents a rapidly growing subfield of organocatalysis. While traditional hydrogen bond donors containing N–H and O–H moieties have been effectively used for electrophile activation, activation based on other types of non-covalent interactions is less common. This mini review highlights recent progress in developing and exploring new organic catalysts for electrophile activation through the formation of C–H hydrogen bonds and C–X halogen bonds.

scholarly journals Deliquescence Behavior of Deep Eutectic Solvents

2021 ◽  
Vol 11 (4) ◽  
pp. 1601
Author(s):  
Henrik Palmelund ◽  
Jukka Rantanen ◽  
Korbinian Löbmann
Keyword(s):  
Hydrogen Bond ◽  
Room Temperature ◽  
Deep Eutectic Solvents ◽  
Storage Conditions ◽  
Ambient Conditions ◽  
Hydrogen Bond Donor ◽  
Eutectic Melting ◽  
Melting Temperatures ◽  
Hydrogen Bond Interactions ◽  
The Individual

Deep eutectic solvents (DESs) are formed by a hydrogen bond donor and an acceptor. The hydrogen bond interactions between these two components significantly depress the melting temperature of the mixture. DESs have been used as an alternative for organic solvents in various branches of the chemical industry. Many DESs are very hygroscopic and water is known to change the properties of DESs, but there has neven been a systematic study performed on the deliquesence behavior of DESs. Therefore, this study investigated the thermal and deliquescent behavior of four DESs. The DES mixtures were stored in desiccators at different relative humidities (RH) to investigate the critical RH (RH0) for deliquescence. It was found that, due to the formation of a eutonic mixture, the RH0 to induce deliquescence for a given DES mixture was lower compared to the individual components comprising the DES. The results showed that, even though all investigated DESs had eutectic melting temperatures above room temperature, but due to the low RH0, they were able to appear liquid at room temperature under ambient conditions. The eutonic and eutectic compositions were identified at different compositions for the DESs. The results emphasize that great care must be taken to control the process and storage conditions for DESs.

scholarly journals Ascorbic Acid as a Bifunctional Hydrogen Bond Donor for the Synthesis of Cyclic Carbonates from CO2 under Ambient Conditions

2017 ◽  
Vol 5 (8) ◽  
pp. 6392-6397 ◽  
Author(s):  
Sunatda Arayachukiat ◽  
Chutima Kongtes ◽  
Alexander Barthel ◽  
Sai V. C. Vummaleti ◽  
Albert Poater ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Ascorbic Acid ◽  
Cyclic Carbonates ◽  
Ambient Conditions ◽  
Hydrogen Bond Donor

Aliphatic Carboxylic Acid as Hydrogen-Bond Donor for Converting CO2 and Epoxide into Cyclic Carbonate under Mild Conditions

2021 ◽  
Author(s):  
Zheng Wang ◽  
Yajun Wang ◽  
Qianjie Xie ◽  
Zhiying Fan ◽  
Yehua Shen
Keyword(s):  
Hydrogen Bond ◽  
Carboxylic Acid ◽  
Value Added ◽  
Cyclic Carbonate ◽  
Hydrogen Bond Donor ◽  
Title Reaction ◽  
Aliphatic Carboxylic Acid ◽  
Mild Conditions ◽  
Atmospheric Carbon

The coupling of CO2 and epoxide is promising way to reduce atmospheric carbon by converting it into value-added cyclic carbonate. Pursuing efficient catalysts is highly attractive for the title reaction....

Role of the hydrogen bond donor component for a proper development of novel hydrophobic deep eutectic solvents

2019 ◽  
Vol 281 ◽  
pp. 423-430 ◽  
Author(s):  
Matteo Tiecco ◽  
Federico Cappellini ◽  
Francesco Nicoletti ◽  
Tiziana Del Giacco ◽  
Raimondo Germani ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Deep Eutectic Solvents ◽  
Hydrogen Bond Donor

Identifying Selective Host–Guest Interactions Based on Hydrogen Bond Donor–Acceptor Pattern in Functionalized Al-MIL-53 Metal–Organic Frameworks

2013 ◽  
Vol 117 (39) ◽  
pp. 19991-20001 ◽  
Author(s):  
Julia Wack ◽  
Renée Siegel ◽  
Tim Ahnfeldt ◽  
Norbert Stock ◽  
Luís Mafra ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Metal Organic Frameworks ◽  
Hydrogen Bond Donor ◽  
Donor Acceptor ◽  
Metal Organic

6,9-Dibromo-2a,10b-diphenyl-2a,5,10,10b-tetrahydro-2H,3H-2,3,4a,10a-tetraazabenzo[g]cyclopenta[cd]azulene-1,4-dione monohydrate

2006 ◽  
Vol 62 (5) ◽  
pp. o1754-o1755
Author(s):  
Neng-Fang She ◽  
Sheng-Li Hu ◽  
Hui-Zhen Guo ◽  
An-Xin Wu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Title Compound ◽  
Supramolecular Structure ◽  
Hydrogen Bond Donor ◽  
Hydrogen Bond Acceptor ◽  
Compound C ◽  
Bifurcated Hydrogen Bond

The title compound, C24H18Br2N4O2·H2O, forms a supramolecular structure via N—H...O, O—H...O and C—H...O hydrogen bonds. In the crystal structure, the water molecule serves as a bifurcated hydrogen-bond acceptor and as a hydrogen-bond donor.

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