scholarly journals Experimental and theoretical investigation of oxidative methane activation on Pd–Pt catalysts

RSC Advances ◽  
2019 ◽  
Vol 9 (20) ◽  
pp. 11385-11395
Author(s):  
Wenjie Qi ◽  
Zehao Huang ◽  
Zheming Chen ◽  
Lijuan Fu ◽  
Zhigang Zhang
Keyword(s):  
Density Functional Theory ◽  
Theoretical Investigation ◽  
Active Site ◽  
Bimetallic Catalysts ◽  
Density Functional ◽  
Methane Activation ◽  
Pt Catalysts ◽  
Functional Theory ◽  
Rate Determining Step

Density functional theory and measurements of rate are used to provide evidence for the rate determining step and requirements of the active site for CH4 combustion on Pd–Pt bimetallic catalysts in five different distinct kinetic regimes.

scholarly journals Theoretical investigation on the effect of the ligand on bis-silylation of C(sp)–C(sp) by Ni complexes

RSC Advances ◽  
2022 ◽  
Vol 12 (2) ◽  
pp. 1005-1010
Author(s):  
Li Hui ◽  
He Yuhan ◽  
Wang Jiaqi
Keyword(s):  
Density Functional Theory ◽  
Reaction Mechanism ◽  
Transition Metal ◽  
Theoretical Investigation ◽  
Density Functional ◽  
Active Catalyst ◽  
Organic Ligand ◽  
Organic Complex ◽  
Functional Theory ◽  
Rate Determining Step

Density functional theory (DFT) is used to study the bis-silylation of alkynes catalyzed by a transition metal nickel–organic complex; the active catalyst, the organic ligand, the reaction mechanism, and rate-determining step are discussed in this paper.

Photophysical Properties of N-Methyl and N-Acetyl Substituted Alloxazine: A Theoretical Investigation

2021 ◽  
Author(s):  
Huimin Guo ◽  
Xiaolin Ma ◽  
Zhiwen Lei ◽  
Yang Qiu ◽  
Bernhard Dick ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Electronic Structure ◽  
Theoretical Investigation ◽  
Density Functional ◽  
Photophysical Properties ◽  
Time Dependent ◽  
Functional Theory ◽  
Td Dft ◽  
Dependent Density

The electronic structure and photophysical properties of a series of N-Methyl and N-Acetyl substituted alloxazine (AZs) were investigated with extensive density functional theory (DFT) and time-dependent density functional theory (TD-DFT)...

A Density Functional Theory Study of the Isomerization of Substituted 2and#39;-hydroxychalcones to the Corresponding Flavanones

2021 ◽  
Vol 43 (1) ◽  
pp. 25-25
Author(s):  
Said Abdelqadar Said Said Abdelqadar Said ◽  
Omar A Shareef and Abdulkhalik S Alkazzaz Omar A Shareef and Abdulkhalik S Alkazzaz
Keyword(s):  
Density Functional Theory ◽  
Density Functional ◽  
Ring Closure ◽  
Basis Set ◽  
Functional Theory ◽  
Rate Determining Step ◽  
The Density Functional Theory ◽  
Electronic And Structural Properties ◽  
Maximum Hardness Principle

The transformation of 2and#39;-hydroxychalcones to their corresponding flavanones was studied theoretically by the use of the density functional theory (DFT) with B3-LYP/ 6-311G basis set to get important information about the role of both of electronic and structural properties in this process. The obtained energies were found to be in agreement with our previous results that obtained from HPLC studies. The estimated hardness, polarizability, and electrophilicity profiles were found to obey the maximum hardness principle (MHP), minimum polarizability principle (MPP), and the minimum electrophilicity principle (MEP) respectively. Flavanone ring closure was found to be the rate-determining step.

Theoretical investigation of the electronic structure and photophysical properties of a series of Ir(iii) complexes bearing pentafluorosulfanyl groups

2019 ◽  
Vol 43 (25) ◽  
pp. 9916-9923 ◽  
Author(s):  
Jing Gao ◽  
Xin Li ◽  
Deming Han ◽  
Jiawei Li ◽  
Xiaohong Shang
Keyword(s):  
Density Functional Theory ◽  
Electronic Structure ◽  
Theoretical Investigation ◽  
Density Functional ◽  
Photophysical Properties ◽  
Emission Spectra ◽  
Time Dependent ◽  
Functional Theory ◽  
Ancillary Ligands ◽  
Dependent Density

The electronic structure, absorption and emission spectra, charge injection/transport ability and phosphorescence quantum efficiency of a series of cyclometalated iridium(iii) complexes with different ancillary ligands are studied using density functional theory (DFT) and time-dependent density functional theory (TDDFT) methods.

Predicting the origin of selectivity in NHC-catalyzed ring opening of formylcyclopropane: a theoretical investigation

2021 ◽  
Author(s):  
Yang Wang ◽  
Yan Qiao ◽  
Yu Lan ◽  
Donghui Wei
Keyword(s):  
Density Functional Theory ◽  
Theoretical Investigation ◽  
Ring Opening ◽  
Density Functional ◽  
Functional Theory

Using density functional theory, we investigated the origin of selectivity in the N-heterocyclic carbene (NHC)-catalyzed transformation of formylcyclopropane with an alkylidene oxindole.

Cost-effective promoter-doped Cu-based bimetallic catalysts for the selective hydrogenation of C2H2 to C2H4: the effect of the promoter on selectivity and activity

2018 ◽  
Vol 20 (25) ◽  
pp. 17487-17496 ◽  
Author(s):  
Riguang Zhang ◽  
Bo Zhao ◽  
Leilei He ◽  
Anjie Wang ◽  
Baojun Wang
Keyword(s):  
Density Functional Theory ◽  
Selective Hydrogenation ◽  
Bimetallic Catalysts ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Cost Effective ◽  
Microkinetic Modeling ◽  
Functional Theory ◽  
Cu Catalysts

Different metal promoter M-modified Cu catalysts have been employed to fully investigate the selective hydrogenation of C2H2 using density functional theory calculations together with microkinetic modeling.

Insights from the computational studies on the oxidized as-isolated state of [NiFeSe] hydrogenase from D. vulgaris Hildenborough

2015 ◽  
Vol 17 (32) ◽  
pp. 20677-20686 ◽  
Author(s):  
Swaminathan Angeline Vedha ◽  
Gunasekaran Velmurugan ◽  
Rajangam Jagadeesan ◽  
Ponnambalam Venuvanalingam
Keyword(s):  
Density Functional Theory ◽  
Active Site ◽  
Density Functional ◽  
Computational Studies ◽  
Density Functional Theory Study ◽  
Functional Theory ◽  
Site Structure ◽  
Active Site Structure

A density functional theory study of the active site structure and features of the oxygen tolerant [NiFeSe] Hase in the oxidized as-isolated state of the enzyme D. vulgaris Hildenborough (DvH) is reported here.

Sign in / Sign up

Export Citation Format

Share Document