Hydrogen bonding in alkali metal cation-bound i-motif-like dimers of 1-methyl cytosine: an IRMPD spectroscopic and computational study

2019 ◽  
Vol 21 (21) ◽  
pp. 11103-11110 ◽  
Author(s):  
Ruodi Cheng ◽  
Estelle Loire ◽  
Travis D. Fridgen
Keyword(s):  
Hydrogen Bonding ◽  
Alkali Metal ◽  
Gas Phase ◽  
Vibrational Spectroscopy ◽  
Computational Methods ◽  
Metal Cation ◽  
Computational Study ◽  
Alkali Metal Cation ◽  
Alkali Metal Cations ◽  
Methyl Cytosine

The structures of alkali metal cation bound 1-methylcytosine (1-mCyt) dimers were explored using vibrational spectroscopy in the gas phase and by computational methods. A transition from structures absent of hydrogen bonding for the light alkali metal cations to those with predominant hydrogen bonding for the larger cations was observed.

scholarly journals The effect of the alkali metal cation on the electrocatalytic oxidation of formate on platinum

RSC Advances ◽  
2014 ◽  
Vol 4 (29) ◽  
pp. 15271-15275 ◽  
Author(s):  
Bruno A. F. Previdello ◽  
Eduardo G. Machado ◽  
Hamilton Varela
Keyword(s):  
Alkali Metal ◽  
Metal Cation ◽  
Electrocatalytic Oxidation ◽  
Alkali Metal Cation ◽  
Metal Cations ◽  
Alkali Metal Cations ◽  
Non Covalent Interactions ◽  
Electro Oxidation ◽  
Covalent Interactions

Non-covalent interactions between hydrated alkali metal cations and oxygenated species on platinum considerably impact the mechanism of formate electro-oxidation.

scholarly journals Alkali metal cation interactions with 12-crown-4 in the gas phase: Revisited

2012 ◽  
Vol 330-332 ◽  
pp. 16-26 ◽  
Author(s):  
P.B. Armentrout ◽  
C.A. Austin ◽  
M.T. Rodgers
Keyword(s):  
Alkali Metal ◽  
Gas Phase ◽  
Metal Cation ◽  
Alkali Metal Cation

Crystal Structures of Titanium(III) Bis(acetylide) Tweezer Complexes with Alkali Metal Cations

1997 ◽  
Vol 62 (9) ◽  
pp. 1446-1456 ◽  
Author(s):  
Jörg Hiller ◽  
Vojtech Varga ◽  
Ulf Thewalt ◽  
Karel Mach
Keyword(s):  
Alkali Metal ◽  
Crystal Structures ◽  
Metal Cation ◽  
Alkali Metal Cation ◽  
Metal Cations ◽  
Polymer Chains ◽  
Alkali Metal Cations ◽  
Bonding Interaction ◽  
Intermolecular Bonding ◽  
Trimethylsilyl Groups

Crystal structures of the Ti(III) tweezer complexes [(C5HMe4)2Ti(σ-C≡CSiMe3)2]-[Li(THF)2]+ (2a), [(C5HMe4)2Ti(σ-C≡CSiMe3)2]-Na+ (3) and [(C5HMe4)2Ti(σ-C≡CSiMe3)2]-Cs+ (5) have been determined. In all of them the alkali metal cation is placed away from the Ti-Cα1-Cα2 plane at the distance: Li+ 0.511 Å, Na+ 1.023 Å and Cs+ 0.521 Å. The reason for the deviation of Li+ in 2a is the asymmetrical orientation of the THF ligands in the [Li(THF)2]+ cation with respect to the Ti-Cα1-Cα2 plane, which seems to release the steric congestion between the THF ligands and the trimethylsilyl groups. In 3 and 5, the molecules form polymer chains with a weak intermolecular bonding interaction between the cations and one of the C5HMe4 ligands of the neighbouring molecule in a sandwich manner.

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