Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Dative behavior of N-heterocyclic carbenes (NHCs) with selenium in Se-NHC compounds
View through CrossRef
Abstract
N-heterocyclic carbenes (NHCs) are an eminent class of carbenes having a heterocyclic ring in which a divalent carbon atom is attached directly to a nitrogen atom. In the NHCs, the donation of lone pair is another important research in the dative bonding and not only in NHCs the dative bond plays a functionalized role in the other classes of complex formation like ylidones L → E ← L and carbones L → C ← L. M–NHC bond is L-M sigma-dative bond and NHCs are considered as strong sigma-donor ligands. The clear picture of the M–NHC bond can be better understood by M–NHC pi-interaction. M-L pi interaction is comprised of two steps. One is L → M sigma-donation and M → L π* back bonding. This dative donor nature of NHC and also its behavior in organoselenium is studied through DFT in which it’s optimized structure, bond lengths, molecular vibrations are calculated.
Title: Dative behavior of N-heterocyclic carbenes (NHCs) with selenium in Se-NHC compounds
Description:
Abstract
N-heterocyclic carbenes (NHCs) are an eminent class of carbenes having a heterocyclic ring in which a divalent carbon atom is attached directly to a nitrogen atom.
In the NHCs, the donation of lone pair is another important research in the dative bonding and not only in NHCs the dative bond plays a functionalized role in the other classes of complex formation like ylidones L → E ← L and carbones L → C ← L.
M–NHC bond is L-M sigma-dative bond and NHCs are considered as strong sigma-donor ligands.
The clear picture of the M–NHC bond can be better understood by M–NHC pi-interaction.
M-L pi interaction is comprised of two steps.
One is L → M sigma-donation and M → L π* back bonding.
This dative donor nature of NHC and also its behavior in organoselenium is studied through DFT in which it’s optimized structure, bond lengths, molecular vibrations are calculated.
Related Results
N-heterocyclic carbene ligands designed for improved stability and efficiency of ruthenium-based olefin metathesis catalysts
N-heterocyclic carbene ligands designed for improved stability and efficiency of ruthenium-based olefin metathesis catalysts
Catalyseurs de métathèse des oléfines au ruthénium à stabilité et efficacité accrues par conception de nouveaux ligands carbènes N-hétérocycliques
La catalyse est l...
Influence of Fluorine Substituents on the Electronic Properties of Selenium-N-Heterocyclic Carbene Compounds
Influence of Fluorine Substituents on the Electronic Properties of Selenium-N-Heterocyclic Carbene Compounds
N-heterocyclic carbenes (NHCs) are common ancillary ligands in organometallic compounds that are used to alter the electronic and steric properties of a metal centre. To date, vari...
A New Method for Calculating Selenium Content and Determining Appropriate Selenium Levels in Foods
A New Method for Calculating Selenium Content and Determining Appropriate Selenium Levels in Foods
Calculating the selenium content per 100 kcal, 100 g or 100 mL, or the reference amount customarily consumed (RACC) of food shows the selenium content of some foods inappropriately...
Ru(II)-CNC pincer complexes with bis(protic-NHC): Comparative analysis with bis(classical-NHC) and mixed protic- & classical-NHC analogues
Ru(II)-CNC pincer complexes with bis(protic-NHC): Comparative analysis with bis(classical-NHC) and mixed protic- & classical-NHC analogues
This report concludes our efforts on the synthesis of a series of Ru(II)-CNC pincer complexes with stepwise replacement of classical-NHCs by protic-NHCs. Building upon our work on ...
A General Synthetic Route to NHC‐Phosphinidenes: NHC‐mediated Dehydrogenation of Primary Phosphines
A General Synthetic Route to NHC‐Phosphinidenes: NHC‐mediated Dehydrogenation of Primary Phosphines
AbstractThe dehydrocoupling of primary phosphines with N‐heterocyclic carbenes (NHCs) to yield NHC‐phosphinidenes is reported. The reaction of two equivalents of the NHCs Me2Im (1,...
Evaluation of selenium bioavailability in natural selenium-rich soil by gradient diffusion film technology and chemical extraction method: a case study in Yanqi Basin, Northwest China
Evaluation of selenium bioavailability in natural selenium-rich soil by gradient diffusion film technology and chemical extraction method: a case study in Yanqi Basin, Northwest China
Abstract
Effective selenium is an important indicator for evaluating the supply capacity of selenium to plants in soil. The chemical extraction method and soil solution met...
Advancements in N-heterocyclic carbenes (NHCs) catalysis for benzoin reactions: A comprehensive review from past to present
Advancements in N-heterocyclic carbenes (NHCs) catalysis for benzoin reactions: A comprehensive review from past to present
N-heterocyclic carbenes (NHCs) catalyze benzoin condensation, which is a unique carbon-carbon bond-forming reaction. It entails a coupling reaction between two aldehydes catalyzed ...
Heterocyclic synthesis via catalysis of
N
-heterocyclic carbenes: very classical and very modern chemical species
Heterocyclic synthesis via catalysis of
N
-heterocyclic carbenes: very classical and very modern chemical species
Abstract
After a long history of medical and biochemical investigations of vitamin B
1
,
...