A New Equation for the Computation of the Lattice Energies of Inorganic Ionic Crystals Based on the Parr's Electrophilicity Index

2021 ◽  
pp. 473-489
Author(s):  
Savaş Kaya ◽  
Robson Fernandes De Farias ◽  
Nazmul Islam
Keyword(s):  
Ionic Crystals ◽  
Electrophilicity Index ◽  
Lattice Energies ◽  
New Equation

On ‘basic’ radii of simple and complex ions and the repulsion energy of ionic crystals

1977 ◽  
Vol 356 (1684) ◽  
pp. 115-134 ◽  
Keyword(s):  
Alkali Metal ◽  
Current Literature ◽  
Ionic Crystals ◽  
Halide Ions ◽  
Complex Ions ◽  
Energy Calculations ◽  
Repulsion Energy ◽  
Lattice Potential ◽  
Spherical Complex ◽  
Lattice Energies

This paper proposes a method in which minimization criteria are employed, within the framework of the Huggins and Mayer method for the calculation of repulsion energy in ionic crystals, to establish ‘basic’ radii for both simple and complex spherical ions. With radii so generated repulsion energies (and hence total lattice energies) can be obtained for salts containing spherical ions. The paper initially establishes ‘basic’ radii for alkali metal and halide ions using more recent data than those used originally by Huggins. A description is then given of how we propose to employ the method for salts having spherical complex ions. The examples of potassium, rubidium, caesium, thallium and ammonium hexachloroplatinates are chosen and values for ∆ H f Ɵ (PtCl 2¯ 6 ) (g) and ∆ H Ɵ hyd (PtCl 2¯ 6 ) (g) are assigned on the basis of the repulsion, and hence the total lattice potential, energies calculated for these five salts. Recent suspicions regarding the accuracy and reliability of the repulsion energy calculations for potassium hexachloroplatinate described in the current literature are re-examined and found to be justified.

Lattice energies of ionic crystals—I

1965 ◽  
Vol 27 (3) ◽  
pp. 535-539 ◽  
Author(s):  
A. Finch ◽  
P.J. Gardner
Keyword(s):  
Ionic Crystals ◽  
Lattice Energies

Lattice Energies of Ionic Crystals. II. Some Group I-A and II-A Salts

1965 ◽  
Vol 69 (2) ◽  
pp. 384-389 ◽  
Author(s):  
Arthur Finch ◽  
P. J. Gardner
Keyword(s):  
Ionic Crystals ◽  
Group I ◽  
Lattice Energies

Intermolecular forces in solution and lattice energies of ionic crystals: Calorimetric experiments for the physical chemistry undergraduate laboratory

1993 ◽  
Vol 70 (9) ◽  
pp. A227 ◽  
Author(s):  
H. P. Diogo ◽  
M. E Minas da Piedade ◽  
J. J. Moura Ramos ◽  
J. A. Simoni ◽  
J. A. Martinho Simoes
Keyword(s):  
Physical Chemistry ◽  
Intermolecular Forces ◽  
Ionic Crystals ◽  
Undergraduate Laboratory ◽  
Lattice Energies

Structure-property relationships of PE/PP sandwiched films

1987 ◽  
Vol 45 ◽  
pp. 454-455
Author(s):  
J. Petermann ◽  
G. Broza ◽  
U. Rieck ◽  
A. Jaballah ◽  
A. Kawaguchi
Keyword(s):  
Mechanical Tests ◽  
Polymer Materials ◽  
Ionic Crystals ◽  
Structure Property ◽  
Polymer Systems ◽  
Structure Property Relationships ◽  
Oriented Films ◽  
Materials Used ◽  
Polymer Laminates ◽  
Heated Glass

Oriented overgrowth of polymer materials onto ionic crystals is well known and recently it was demonstrated that this epitaxial crystallisation can also occur in polymer/polymer systems, under certain conditions. The morphologies and the resulting physical properties of such systems will be presented, especially the influence of epitaxial interfaces on the adhesion of polymer laminates and the mechanical properties of epitaxially crystallized sandwiched layers.Materials used were polyethylene, PE, Lupolen 6021 DX (HDPE) and 1810 D (LDPE) from BASF AG; polypropylene, PP, (PPN) provided by Höchst AG and polybutene-1, PB-1, Vestolen BT from Chemische Werke Hüls. Thin oriented films were prepared according to the method of Petermann and Gohil, by winding up two different polymer films from two separately heated glass-plates simultaneously with the help of a motor driven cylinder. One double layer was used for TEM investigations, while about 1000 sandwiched layers were taken for mechanical tests.

INVESTIGATION OF THE VOLATILISATION OF RECOIL PRODUCTS FROM IONIC CRYSTALS

1976 ◽  
Vol 37 (C7) ◽  
pp. C7-543-C7-548
Author(s):  
B. STOJANIK ◽  
R. LAUER ◽  
B. NEIDHART ◽  
K. BÄCHMANN
Keyword(s):  
Ionic Crystals
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