Density functional theory response to the calculations of pKa values of some carboxylic acids in aqueous solution

2004 ◽  
Vol 711 (1-3) ◽  
pp. 13-18 ◽  
Author(s):  
Mansoor Namazian ◽  
Sakineh Halvani ◽  
Mohammad R. Noorbala
Keyword(s):  
Aqueous Solution ◽  
Density Functional Theory ◽  
Carboxylic Acids ◽  
Density Functional ◽  
Functional Theory ◽  
Pka Values

Density Functional Theory Study of Uranium(VI) Aquo Chloro Complexes in Aqueous Solution

2008 ◽  
Vol 112 (11) ◽  
pp. 2428-2436 ◽  
Author(s):  
Michael Bühl ◽  
Nicolas Sieffert ◽  
Volodymyr Golubnychiy ◽  
Georges Wipff
Keyword(s):  
Aqueous Solution ◽  
Density Functional Theory ◽  
Density Functional ◽  
Density Functional Theory Study ◽  
Functional Theory ◽  
Chloro Complexes

scholarly journals Supramolecular Complexes of Cucurbiturils with Second Group Metal Salts and Hydrates and Histamine

INEOS OPEN ◽  
2021 ◽  
Vol 4 ◽  
Author(s):  
Yu. A. Borisov ◽  
◽  
S. S. Kiselev ◽  
Keyword(s):  
Aqueous Solution ◽  
Density Functional Theory ◽  
Density Functional ◽  
Metal Salts ◽  
Supramolecular Complexes ◽  
Water Molecules ◽  
Functional Theory ◽  
Guest Molecules ◽  
First Time ◽  
Formation Energies

The interaction of cucurbiturils (Q6, Q7, and Q8) with Ca and Ba chlorides and iodides are studied for the first time by density functional theory. The thermodynamic parameters for the formation of host–guest complexes are calculated. The structures of complexes of Q6 and Q7 with one and two guest molecules are established. The energy parameters for the transfer of Be2+ and Ba2+ cations from an aqueous solution into the cavity of Q7 containing n water molecules are defined. The dependences of the formation energies for complexes Q7WnBe2+ and Q7WnBa2+ on the number of water molecules are shown to be parabolic, with the energy minima at n = 5 and n = 6, respectively. It is found that Q7 can form in an aqueous solution supramolecular complexes with protonated histamine (HA) and neutral histamine in the presence of Ca2+ ions.

A reaction density functional theory study of the solvent effect in prototype SN2 reactions in aqueous solution

2019 ◽  
Vol 21 (45) ◽  
pp. 24876-24883 ◽  
Author(s):  
Cheng Cai ◽  
Weiqiang Tang ◽  
Chongzhi Qiao ◽  
Peng Jiang ◽  
Changjie Lu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Density Functional Theory ◽  
Free Energy ◽  
Solvent Effect ◽  
Density Functional ◽  
Density Functional Theory Study ◽  
Functional Theory ◽  
Sn2 Reactions ◽  
Energy Profiles ◽  
Free Energy Profiles

Reaction density functional theory (RxDFT), combining quantum DFT with classical DFT, has been employed to investigate the solvent effect and free energy profiles of SN2 reactions in aqueous solution.

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