scholarly journals Lead(ii) coordination polymers driven by pyridine-hydrazine donors: from anion-guided self-assembly to structural features

2020 ◽  
Vol 49 (32) ◽  
pp. 11238-11248 ◽  
Author(s):  
Ghodrat Mahmoudi ◽  
Farhad Akbari Afkhami ◽  
Alan R. Kennedy ◽  
Fedor I. Zubkov ◽  
Ennio Zangrando ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Self Assembly ◽  
Relativistic Effects ◽  
Structural Features ◽  
Dispersion Forces ◽  
Covalent Bonds ◽  
London Dispersion ◽  
London Dispersion Forces

This work unveils an indispensable role of London dispersion forces and relativistic effects in tetrel and covalent bonds of the type Pb–X (X = O, N, S, I), which drives formation of extended architectures of lead(ii) coordination polymers.

The role of dispersion type metal⋯π interaction in the enantiotropic phase transition of two polymorphs of tris-(thienyl)bismuthine

2017 ◽  
Vol 46 (39) ◽  
pp. 13492-13501 ◽  
Author(s):  
A. M. Preda ◽  
W. B. Schneider ◽  
D. Schaarschmidt ◽  
H. Lang ◽  
L. Mertens ◽  
...  
Keyword(s):  
Phase Transition ◽  
Dft Calculations ◽  
Dispersion Forces ◽  
Model Compounds ◽  
London Dispersion ◽  
London Dispersion Forces

Bi(2-C4H3S)3 shows an enantiotropic phase transition that is dominated by London dispersion forces. DFT calculations on model compounds were carried out in order to investigate the competition between Bi⋯S and Bi⋯π heteroarene interaction.

Counterintuitive Interligand Angles in the Diaryls E{C6H3-2,6-(C6H2-2,4,6-iPr3)2}2(E = Ge, Sn, or Pb) and Related Species: The Role of London Dispersion Forces

2018 ◽  
Vol 37 (13) ◽  
pp. 2075-2085 ◽  
Author(s):  
Madison L. McCrea-Hendrick ◽  
Markus Bursch ◽  
Kelly L. Gullett ◽  
Leonard R. Maurer ◽  
James C. Fettinger ◽  
...  
Keyword(s):  
Related Species ◽  
Dispersion Forces ◽  
London Dispersion ◽  
London Dispersion Forces

Self-assembly of molecular wires on H-terminated Si(100) surfaces driven by London dispersion forces

2011 ◽  
Vol 84 (24) ◽  
Author(s):  
Guo Li ◽  
Valentino R. Cooper ◽  
Jun-Hyung Cho ◽  
Shixuan Du ◽  
Hong-Jun Gao ◽  
...  
Keyword(s):  
Self Assembly ◽  
Molecular Wires ◽  
Dispersion Forces ◽  
London Dispersion ◽  
London Dispersion Forces

The role of the Lewis acid−base properties in the supramolecular association of 1,2,5-chalcogenadiazoles

2013 ◽  
Vol 91 (5) ◽  
pp. 338-347 ◽  
Author(s):  
Anthony F. Cozzolino ◽  
Philip J.W. Elder ◽  
Lucia Myongwon Lee ◽  
Ignacio Vargas-Baca
Keyword(s):  
Topological Analysis ◽  
Structural Features ◽  
Lewis Acidity ◽  
Electron Localization ◽  
Dispersion Forces ◽  
Acid Base ◽  
Lewis Bases ◽  
The Individual ◽  
Secondary Bonding

The secondary bonding interactions that link the supramolecular structures assembled by 1,2,5-chalcogenadiazoles were analyzed through explicit orthogonalization of molecular orbitals (NBO), topological analysis of the electron density (AIM), and the electron localization function (ELF). The results of these analyses are consistent with a bonding description that attributes important covalent and electrostatic character to these interactions. Application of these analyses to the individual molecules highlighted the structural features from which each of those contributions originates, namely the polarity and modest strength of the E–N bond. Both of these effects increase along the series S, Se, Te. Perturbations to the heterocycle electronic structure that result in a weaker and more polar E–N bond cause an increase in the Lewis acidity at the chalcogen centre, which in turn leads to stronger secondary bonding interactions with Lewis bases. Additionally, the contribution of dispersion forces is not negligible and is most important in the case of sulfur.

scholarly journals Gas-Solid Interaction

1968 ◽  
Vol 23 (7) ◽  
pp. 979-984 ◽  
Author(s):  
Manlio Sanesi ◽  
Vittoriano Wagner
Keyword(s):  
Adsorption Energy ◽  
Surface Coverage ◽  
Aluminium Oxide ◽  
Dispersion Forces ◽  
Heats Of Adsorption ◽  
Linear Alkanes ◽  
London Dispersion ◽  
London Dispersion Forces

The heats of adsorption on weakly activated γ-aluminium oxide for a number of linear alkanes (from n-butane to n-nonane) and for 2.2.4-trimethylpentane have been determined by GSC and extrapolated to zero surface coverage.The dependance of the adsorption energy on the number of carbon atoms is discussed on the basis of the bidimensional gas model: it is shown that the interactions of the adsorbates with the oxidic surface are mainly due to London dispersion forces.

London Dispersion Forces between Unlike Molecules

1952 ◽  
Vol 20 (11) ◽  
pp. 1812-1812 ◽  
Author(s):  
James F. Hornig ◽  
Joseph O. Hirschfelder
Keyword(s):  
Dispersion Forces ◽  
London Dispersion ◽  
London Dispersion Forces
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