scholarly journals A DFT Study on Structure and Electronic Properties of BN Nanostructures Adsorbed with Dopamine

Computation ◽  
2019 ◽  
Vol 7 (4) ◽  
pp. 61 ◽  
Author(s):  
Soltani ◽  
Baei

Density functional theory calculations were carried out to investigate the adsorption behaviors of dopamine (DPM) on the BN nanostructures in gas and solvent phases. Our results revealed that the adsorption of DPM on BN nano-cages was stronger than other BN nanotubes. It was found that the adsorption of two DPM (–1.30 eV) upon B12N12 was weaker than those of a single DPM (–1.41 eV). The Ga-doped B12N12 had better conditions for the detection of DPM than that of the Al-doped B12N12 nano-cage. The solvation effects for the most stable systems were calculated which showed that it had positive impacts upon the adsorption behavior of the applied systems than those studied in gas phase. The available results are expected to provide a useful guidance for the adsorption of DPM and generation of the new hybrid compounds.

2006 ◽  
Vol 17 (08) ◽  
pp. 1179-1190 ◽  
Author(s):  
EMİNE DENİZ ÇALIŞIR ◽  
ŞAKİR ERKOÇ

The structural, vibrational, electronic and QSAR properties of the dipropyl sulfide (DPS) molecule in gas phase have been investigated theoretically by performing semi-empirical molecular orbital (AM1 and PM3), ab initio (RHF) and density functional theory calculations. The geometry of the molecule has been optimized, infrared spectrum (vibrational modes and intensities) and the electronic properties of the molecule have been calculated in its ground state. It has been found that DPS molecule kinetically may not be stable however it is thermodynamically stable.


Author(s):  
Javaria Batool ◽  
Syed Muhammad Alay-e-Abbas ◽  
Gustav Johansson ◽  
Waqas Zulfiqar ◽  
Muhammad Arsam Danish ◽  
...  

The thermodynamic, structural, magnetic and electronic properties of pristine and intrinsic vacancy defect containing topological Dirac semimetal Ba3SnO are studied using first-principles density functional theory calculations. The thermodynamic stability of...


2005 ◽  
Vol 16 (02) ◽  
pp. 271-280
Author(s):  
EFE YAZGAN ◽  
ŞAKIR ERKOÇ

The structural and electronic properties of ( C n Li )+ cluster ions with n =1–6 and n =20 have been investigated by performing density functional theory calculations at B3LYP level. The vibrational frequencies of the clusters are also calculated.


2020 ◽  
Vol 22 (42) ◽  
pp. 24471-24479 ◽  
Author(s):  
Asadollah Bafekry ◽  
Catherine Stampfl ◽  
Chuong Nguyen ◽  
Mitra Ghergherehchi ◽  
Bohayra Mortazavi

Density functional theory calculations are performed in order to study the structural and electronic properties of monolayer Pt2HgSe3. Effects of uniaxial and biaxial strain, layer thickness, electric field and out-of-plane pressure on the electronic properties are systematically investigated.


2020 ◽  
Vol 22 (37) ◽  
pp. 21275-21287 ◽  
Author(s):  
Manish Kumar Mohanta ◽  
I. S. Fathima ◽  
Abir De Sarkar

The response of the electronic properties of the HfN2 monolayer to external perturbation such as strain and electric fields has been investigated using density functional theory calculations for its device-based applications and photocatalysis.


2019 ◽  
Vol 25 (1) ◽  
pp. 30-43 ◽  
Author(s):  
Qiuyan Jin ◽  
Jiaye Li ◽  
Alireza Ariafard ◽  
Allan J Canty ◽  
Richard AJ O’Hair

Gas-phase ion trap mass spectrometry experiments and density functional theory calculations have been used to examine the routes to the formation of the 1,8-naphthyridine (napy) ligated geminally dimetallated phenyl complexes [(napy)Cu2(Ph)]+, [(napy)Ag2(Ph)]+ and [(napy)CuAg(Ph)]+ via extrusion of CO2 or SO2 under collision-induced dissociation conditions from their corresponding precursor complexes [(napy)Cu2(O2CPh)]+, [(napy)Ag2(O2CPh)]+, [(napy)CuAg(O2CPh)]+ and [(napy)Cu2(O2SPh)]+, [(napy)Ag2(O2SPh)]+, [(napy)CuAg(O2SPh)]+. Desulfination was found to be more facile than decarboxylation. Density functional theory calculations reveal that extrusion proceeds via two transition states: TS1 enables isomerization of the O, O-bridged benzoate to its O-bound form; TS2 involves extrusion of CO2 or SO2 with the concomitant formation of the organometallic cation and has the highest barrier. Of all the organometallic cations, only [(napy)Cu2(Ph)]+ reacts with water via hydrolysis to give [(napy)Cu2(OH)]+, consistent with density functional theory calculations which show that hydrolysis proceeds via the initial formation of the adduct [(napy)Cu2(Ph)(H2O)]+ which then proceeds via TS3 in which the coordinated H2O is deprotonated by the coordinated phenyl anion to give the product complex [(napy)Cu2(OH)(C6H6)]+, which then loses benzene.


2019 ◽  
Vol 21 (21) ◽  
pp. 11168-11174 ◽  
Author(s):  
Wiliam Ferreira da Cunha ◽  
Ramiro Marcelo dos Santos ◽  
Rafael Timóteo de Sousa Júnior ◽  
Renato Batista Santos ◽  
Geraldo Magela e Silva ◽  
...  

The structural and electronic properties of MoS2 sheets doped with carbon line domains are theoretically investigated through density functional theory calculations.


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