The cone-tetranitrocalix[4]arene tetraradical tetraanion as an electrochemically generated ligand for heavier alkali metal cations

2019 ◽  
Vol 55 (19) ◽  
pp. 2817-2820 ◽  
Author(s):  
Alan Liška ◽  
Pavel Vojtíšek ◽  
Jiří Ludvík
Keyword(s):  
Alkali Metal ◽  
Metal Ions ◽  
Metal Cations ◽  
Alkali Metal Ions ◽  
Alkali Metal Cations

Tetranitrocalix[4]arene cathodically reduced to its stable tetraanion tetraradical represents an electrochemically generated ligand – a promising receptor/sensor – for alkali metal ions.

scholarly journals The role of alkali metal cations in the stabilization of guanine quadruplexes: why K+ is the best

2016 ◽  
Vol 18 (31) ◽  
pp. 20895-20904 ◽  
Author(s):  
F. Zaccaria ◽  
G. Paragi ◽  
C. Fonseca Guerra
Keyword(s):  
Alkali Metal ◽  
Metal Ions ◽  
Metal Cations ◽  
Alkali Metal Ions ◽  
Alkali Metal Cations ◽  
Equal Importance ◽  
Cation Affinity

The desolvation and size of monovalent alkali metal ions are of equal importance for the cation affinity of guanine quadruplexes.

scholarly journals Cation-Exchange Properties of CrPO4

2003 ◽  
Vol 21 (2) ◽  
pp. 149-160 ◽  
Author(s):  
S. Mustafa ◽  
S. Murtaza ◽  
A. Naeem ◽  
B. Dilara ◽  
K. Farina
Keyword(s):  
Alkali Metal ◽  
Metal Ions ◽  
Metal Ion ◽  
Ion Concentration ◽  
Alkali Metal Ions ◽  
Alkali Metal Cations ◽  
Titration Curves ◽  
Metal Ion Exchange ◽  
Chromium Phosphate ◽  
Exchange Properties

Alkali metal ion exchange (Li+, Na+ and K+) on chromium phosphate (CrPO4) was studied potentiometrically as a function of temperature and metal ion concentration. The shift in the potentiometric titration curves corresponding to the exchange of alkali metal cations increased with increasing pH and concentration of the metal ions, while the opposite results were obtained by increasing the temperature of the system. The affinity of the exchanger for alkali metal ions was also found to be in the order Li+ > Na+ > K+. The data were employed to evaluate the apparent deprotonation constants of CrPO4 and the corresponding thermodynamic parameters ΔH0, ΔS0 and ΔG0.

scholarly journals The phenoxyl group-modulated interplay of cation–π and σ-type interactions in the alkali metal series

2020 ◽  
Vol 22 (46) ◽  
pp. 27105-27120
Author(s):  
Giacomo Prampolini ◽  
Marco d'Ischia ◽  
Alessandro Ferretti
Keyword(s):  
Alkali Metal ◽  
Noncovalent Interactions ◽  
Metal Cations ◽  
Alkali Metal Cations ◽  
Striking Effect

An extensive exploration of the interaction PESs of phenol and catechol complexes with alkali metal cations reveals a striking effect of –OH substitution on the balance between cation-π and σ-type noncovalent interactions.

Influence of Alkali Metal Cations on the Photodimerization of Bromo Cinnamates Studied by Solid-State NMR

2020 ◽  
Vol 124 (50) ◽  
pp. 27614-27620
Author(s):  
Marufa Zahan ◽  
He Sun ◽  
Sophia E. Hayes ◽  
Harald Krautscheid ◽  
Jürgen Haase ◽  
...  
Keyword(s):  
Solid State ◽  
Alkali Metal ◽  
Solid State Nmr ◽  
Metal Cations ◽  
Alkali Metal Cations
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