Predicting the stability constants of metal-ion complexes from first principles

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F13%3A00423986" target="_blank" >RIV/61388963:_____/13:00423986 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1021/ic401037x" target="_blank" >http://dx.doi.org/10.1021/ic401037x</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/ic401037x" target="_blank" >10.1021/ic401037x</a>

Result language
angličtina
Original language name
Predicting the stability constants of metal-ion complexes from first principles
Original language description
The most important experimental quantity describing the thermodynamics of metal-ion binding with various (in)organic ligands, or biomolecules, is the stability constant of the complex (beta). It can be calculated as the free-energy change associated withthe metal-ion complexation, i.e., its uptake from the solution under standard conditions. We use density functional theory and Moller-Plesset second-order perturbation theory calculations together with the conductor-like screening model for realistic solvation to calculate the stability constants of selected complexes--[M(NH3)4](2+), [M(NH3)4(H2O)2](2+), [M(Imi)(H2O)5](2+), [M(H2O)3(His)](+), [M(H2O)4(Cys)], [M(H2O)3(Cys)], [M(CH3COO)(H2O)3](+), [M(CH3COO)(H2O)5](+), [M(SCH2COO)2](2-)--with eight divalent metal ions (Mn(2+), Fe(2+), Co(2+), Ni(2+), Cu(2+), Zn(2+), Cd(2+), and Hg(2+)). We show that it is possible to achieve a relative accuracy of 2-4 kcal?mol(-1). Finally, a critical discussion is presented that aims at potential caveat
Czech name
—
Czech description
—

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
—

Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)