Hydrogen Bonding in Concentrated Aqueous Solutions of 1,2-Dimethoxyethane:  Formation of Water Clusters

2001 ◽  
Vol 105 (48) ◽  
pp. 10884-10889 ◽  
Author(s):  
Zhorro S. Nickolov ◽  
Nikolay Goutev ◽  
Hiroatsu Matsuura
1969 ◽  
Vol 22 (2) ◽  
pp. 337 ◽  
Author(s):  
RPJ Cooney ◽  
JR Hall

Raman spectra of mercury(II) nitrate in concentrated aqueous solutions (0.7-7.0M) indicate that the nitrate groups are present as associated ions or covalently bound groups. A gradual alteration in the appearance of the nitrate spectrum with increasing concentration is explained in terms of changes in the nature of mercury-nitrate interaction. A Raman line assignable to the stretching of a mercury-nitrate covalent bond has been observed at c. 270 cm-1. The spectrum of solid Hg(NO3)2,H2O differs from spectra of the aqueous solutions, mainly in the region 1300-1450 cm-1. Additional features are attributed to the influence of hydrogen bonding in the crystal lattice or to correlation field effects (anion-anion coupling).


1995 ◽  
Vol 50 (2-3) ◽  
pp. 263-273 ◽  
Author(s):  
Sergi Vizoso ◽  
Bernd M. Rode

Abstract Monte Carlo simulations have been carried our for 5, 25, 50, and 75 weight% aqueous solutions of hydroxylamine. Changes in the microstructure of the solutions have been evaluated by means of radial and angular distribution functions, coordination number distributions and pair energy anal­ysis. The structure of liquid hydroxylamine is strongly altered by even small amounts of water, whereas water clusters similar to the pure water are maintained up to higher NH2OH concentra­tions. The structural entities in the mixtures are determined by hydrogen bonding and electrostatic arrangement of ligands.


2008 ◽  
Vol 73 (11) ◽  
pp. 1457-1474 ◽  
Author(s):  
Eugene S. Kryachko

The present work outlines the fair relationship of the computational model with the experiments on anion photoelectron spectroscopy for the gold-water complexes [Au(H2O)1≤n≤2]- that is established between the auride anion Au- and water monomer and dimer thanks to the nonconventional hydrogen bond where Au- casts as the nonconventional proton acceptor. This work also extends the computational model to the larger complexes [Au(H2O)3≤n≤5]- where gold considerably thwarts the shape of water clusters and even particularly breaks their conventional hydrogen bonding patterns. The fascinating phenomenon of the lavish proton acceptor character of Au- to form at least six hydrogen bonds with molecules of water is computationally unveiled in the present work for the first time.


2019 ◽  
Vol 58 (14) ◽  
pp. 9443-9451 ◽  
Author(s):  
Song Xu ◽  
Hyuk-Yong Kwon ◽  
Daniel C. Ashley ◽  
Chun-Hsing Chen ◽  
Elena Jakubikova ◽  
...  

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