An ab initio study on tunability of σ -hole interactions in XHS:PH2Y and XH2P:SHY complexes (X = F, Cl, Br; Y = H, OH, OCH3, CH3, C2H5, and NH2)

Verfasser / Beitragende:
[Mehdi Esrafili, Nafiseh Mohammadirad]
Ort, Verlag, Jahr:
2015
Enthalten in:
Journal of Molecular Modeling, 21/7(2015-07-01), 1-8
Format:
Artikel (online)
ID: 605511594
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024 7 0 |a 10.1007/s00894-015-2727-9  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00894-015-2727-9 
245 0 3 |a An ab initio study on tunability of σ -hole interactions in XHS:PH2Y and XH2P:SHY complexes (X = F, Cl, Br; Y = H, OH, OCH3, CH3, C2H5, and NH2)  |h [Elektronische Daten]  |c [Mehdi Esrafili, Nafiseh Mohammadirad] 
520 3 |a Quantum chemical calculations are performed to investigate the tunability of σ-hole interactions in chalcogen-bonded XHS:PH2Y and pnicogen-bonded XH2P:SHY complexes, where X = F, Cl, Br and Y = H, OH, OCH3, CH3, C2H5, NH2. The formation of these binary complexes can be understood in terms of molecular electrostatic potentials (MEPs), considering the P and S atoms as an electron acceptor or an electron donor in the chalcogen and pnicogen bonds. The strength of the XHS:PH2Y and XH2P:SHY complexes for a given Y increases as follows: X = Br < Cl < F. In addition, an acceptable linear relationship is found between the interaction energies and the magnitudes of the product of most positive and negative MEPs. This finding along with the electron density difference maps provides a clear picture of the electrostatic nature of the interactions in the XHS:PH2Y and XH2P:SHY complexes. The calculated spin-spin coupling constants across the chalcogen bond interactions in the XHS:PH2Y complexes display a quadratic dependence with the P···S binding distance. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Chalcogen bond  |2 nationallicence 
690 7 |a DFT  |2 nationallicence 
690 7 |a MEP  |2 nationallicence 
690 7 |a Pnicogen bond  |2 nationallicence 
690 7 |a σ -hole  |2 nationallicence 
700 1 |a Esrafili  |D Mehdi  |u Laboratory of Theoretical Chemistry, Department of Chemistry, University of Maragheh, P.O. Box: 5513864596, Maragheh, Iran  |4 aut 
700 1 |a Mohammadirad  |D Nafiseh  |u Laboratory of Theoretical Chemistry, Department of Chemistry, University of Maragheh, P.O. Box: 5513864596, Maragheh, Iran  |4 aut 
773 0 |t Journal of Molecular Modeling  |d Springer Berlin Heidelberg  |g 21/7(2015-07-01), 1-8  |x 1610-2940  |q 21:7<1  |1 2015  |2 21  |o 894 
856 4 0 |u https://doi.org/10.1007/s00894-015-2727-9  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00894-015-2727-9  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Esrafili  |D Mehdi  |u Laboratory of Theoretical Chemistry, Department of Chemistry, University of Maragheh, P.O. Box: 5513864596, Maragheh, Iran  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Mohammadirad  |D Nafiseh  |u Laboratory of Theoretical Chemistry, Department of Chemistry, University of Maragheh, P.O. Box: 5513864596, Maragheh, Iran  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Journal of Molecular Modeling  |d Springer Berlin Heidelberg  |g 21/7(2015-07-01), 1-8  |x 1610-2940  |q 21:7<1  |1 2015  |2 21  |o 894