Femtosecond Mid-Infrared Study of the Dynamics of Water Molecules in Water–Acetone and Water–Dimethyl Sulfoxide Mixtures

2015 ◽  
Vol 119 (16) ◽  
pp. 5228-5239 ◽  
Author(s):  
S. Lotze ◽  
C. C. M. Groot ◽  
C. Vennehaug ◽  
H. J. Bakker
Keyword(s):  
Dimethyl Sulfoxide ◽  
Water Molecules ◽  
Infrared Study ◽  
Mid Infrared

scholarly journals A mid-infrared study of very low mass stars and brown dwarfs in Upper Scorpius

2006 ◽  
Vol 463 (2) ◽  
pp. 641-646 ◽  
Author(s):  
H. Bouy ◽  
N. Huélamo ◽  
E. L. Martín ◽  
D. Barrado y Navascués ◽  
M. Sterzik ◽  
...  
Keyword(s):  
Brown Dwarfs ◽  
Low Mass Stars ◽  
Infrared Study ◽  
Mid Infrared ◽  
Low Mass

scholarly journals Diosgenin hemihydrate

2012 ◽  
Vol 68 (8) ◽  
pp. o2357-o2357 ◽  
Author(s):  
María-Guadalupe Hernández Linares ◽  
Sylvain Bernès ◽  
Marcos Flores-Alamo ◽  
Gabriel Guerrero-Luna ◽  
Anselmo A. Martínez-Gallegos
Keyword(s):  
Crystal Structure ◽  
Water Molecule ◽  
Dimethyl Sulfoxide ◽  
Starting Material ◽  
Water Molecules ◽  
Asymmetric Unit ◽  
Acta Cryst ◽  
X Ray ◽  
Hydroxy Groups ◽  
Hydrogen Bonded

Diosgenin [or (22R,25R)-spirost-5-en-3β-ol] is the starting material of the Marker degradation, a cheap semi-synthesis of progesterone, which has been designated as an International Historic Chemical Landmark. Thus far, a single X-ray structure for diosgenin is known, namely its dimethyl sulfoxide solvate [Zhanget al.(2005).Acta Cryst.E61, o2324–o2325]. We have now determined the structure of the hemihydrate, C27H42O3·0.5H2O. The asymmetric unit contains two diosgenin molecules, with quite similar conformations, and one water molecule. Hydroxy groups in steroids and water molecules form O—H...O hydrogen-bondedR54(10) ring motifs. Fused edge-sharingR(10) rings form a backbone oriented along [100], which aggregates the diosgenin molecules in the crystal structure.

Infrared study on the self-association of dimethyl sulfoxide

1966 ◽  
Vol 22 (4) ◽  
pp. 587-592 ◽  
Author(s):  
R.H. Figueroa ◽  
E. Roig ◽  
H.H. Szmant
Keyword(s):  
Dimethyl Sulfoxide ◽  
The Self ◽  
Infrared Study ◽  
Self Association

Further mid-infrared study of the rho Ophiuchi cloud young stellar population: Luminosities and masses of pre-main-sequence stars

1994 ◽  
Vol 434 ◽  
pp. 614 ◽  
Author(s):  
Thomas P. Greene ◽  
Bruce A. Wilking ◽  
Philippe Andre ◽  
Erick T. Young ◽  
Charles J. Lada
Keyword(s):  
Stellar Population ◽  
Main Sequence ◽  
Main Sequence Stars ◽  
Infrared Study ◽  
Mid Infrared ◽  
Rho Ophiuchi

Mid-infrared study of the molecular structure variability of insoluble organic matter from primitive chondrites

Icarus ◽  
2013 ◽  
Vol 223 (1) ◽  
pp. 534-543 ◽  
Author(s):  
F.-R. Orthous-Daunay ◽  
E. Quirico ◽  
P. Beck ◽  
O. Brissaud ◽  
E. Dartois ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Organic Matter ◽  
Infrared Study ◽  
Mid Infrared ◽  
Insoluble Organic Matter

Effect of Different Salt Concentrations on Dimethyl Sulfoxide (DMSO) Nanocluster Structures by Molecular Dynamics Simulations

2020 ◽  
Vol 20 (8) ◽  
pp. 4799-4806
Author(s):  
Peng Xie ◽  
Shubin Jin ◽  
Chenggang Sun ◽  
Yushu Xie
Keyword(s):  
Aqueous Solution ◽  
Dimethyl Sulfoxide ◽  
Water Cluster ◽  
Water Solution ◽  
Md Simulations ◽  
Water Molecules ◽  
Nacl Concentration ◽  
Dynamics Simulations ◽  
Simulation Systems ◽  
Decentralized Model

We performed MD simulations to examine dimethyl sulfoxide (DMSO) nanocluster structures in NaCl aqueous solution with different concentrations (0.45 g/100 mL, 0.9 g/100 mL, 1.8 g/100 mL, 2.7 g/100 mL, and 3.6 g/100 mL). Results showed that interaction between Na+ and DMSO at the first solvation shells was weakened due to acceleration rotational influence of ion driven by NaCl concentration. We investigated the tetrahedral order parameter and average H-B number of water molecules. These results indicated that NaCl influenced the solvation structure of water cluster, but that of DMSO was not affected by NaCl. We also found that Na+ was prior solvated by water solution in these mixture systems, and Cl− only existed in the water cluster in our simulation systems. Consequently, we herein proposed a decentralized model that depicts microphysical structure images of DMSO in NaCl aqueous solution systems.

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