scholarly journals Back Cover: Integrating31P DOSY NMR Spectroscopy and Molecular Mechanics as a Powerful Tool for Unraveling the Chemical Structures of Polyoxomolybdate-Based Amphiphilic Nanohybrids in Aqueous Solution (Chem. Eur. J. 18/2014)

2014 ◽  
Vol 20 (18) ◽  
pp. 5512-5512
Author(s):  
Pavletta Shestakova ◽  
Gregory Absillis ◽  
Francisco J. Martin-Martinez ◽  
Frank De Proft ◽  
Rudolph Willem ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Nmr Spectroscopy ◽  
Molecular Mechanics ◽  
Back Cover ◽  
Chemical Structures ◽  
Dosy Nmr

Integrating31P DOSY NMR Spectroscopy and Molecular Mechanics as a Powerful Tool for Unraveling the Chemical Structures of Polyoxomolybdate-Based Amphiphilic Nanohybrids in Aqueous Solution

2014 ◽  
Vol 20 (18) ◽  
pp. 5258-5270 ◽  
Author(s):  
Pavletta Shestakova ◽  
Gregory Absillis ◽  
Francisco J. Martin-Martinez ◽  
Frank De Proft ◽  
Rudolph Willem ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Nmr Spectroscopy ◽  
Molecular Mechanics ◽  
Chemical Structures ◽  
Dosy Nmr

Enantioselective Recognition of Chiral Guests by the Water-Soluble Chiral Keplerate {Mo132} Spherical Capsule with 30 Inner Lactate Ligands

2019 ◽  
Author(s):  
Nancy Watfa ◽  
Weimin Xuan ◽  
Zoe Sinclair ◽  
Robert Pow ◽  
Yousef Abul-Haija ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Chiral Recognition ◽  
Association Constants ◽  
Water Soluble ◽  
Enantioselective Recognition ◽  
H Nmr ◽  
Dosy Nmr ◽  
Spherical Capsule ◽  
Surface Pores ◽  
Guest Chemistry

Investigations of chiral host guest chemistry are important to explore recognition in confined environments. Here, by synthesizing water-soluble chiral porous nanocapsule based on the inorganic metal-oxo Keplerate-type cluster, {Mo<sub>132</sub>} with chiral lactate ligands with the composition [Mo<sub>132</sub>O<sub>372</sub>(H<sub>2</sub>O)<sub>72</sub>(<i>x-</i>Lactate)<sub>30</sub>]<sup>42-</sup> (<i>x</i> = D or L), it was possible to study the interaction with a chiral guest, L/D-carnitine and (<i>R</i>/<i>S</i>)-2-butanol in aqueous solution. The enantioselective recognition was studied by quantitative <sup>1</sup>H NMR and <sup>1</sup>H DOSY NMR which highlighted that the chiral recognition is regulated by two distinct sites. Differences in the association constants (K) of L- and D-carnitine, which, due to their charge, are generally restricted from entering the interior of the host, are observed, indicating that their recognition predominantly occurs at the surface pores of the structure. Conversely, a larger difference in association constants (K<i><sub>S</sub></i>/K<i><sub>R</sub></i> = 3) is observed for recognition within the capsule interior of (<i>R</i>)- and (<i>S</i>)-2-butanol.

NMR spectroscopy of inclusion complex of d-(-)-chloramphenicol with β-cyclodextrin in aqueous solution

Il Farmaco ◽  
2004 ◽  
Vol 59 (10) ◽  
pp. 835-838 ◽  
Author(s):  
Syed Mashhood Ali ◽  
Fahmeena Asmat ◽  
Arti Maheshwari
Keyword(s):  
Aqueous Solution ◽  
Nmr Spectroscopy ◽  
Inclusion Complex

Molecular Weights of Cyclic and Hollow Clusters Measured by DOSY NMR Spectroscopy

2009 ◽  
Vol 131 (47) ◽  
pp. 17254-17259 ◽  
Author(s):  
Sébastien Floquet ◽  
Sébastien Brun ◽  
Jean-François Lemonnier ◽  
Marc Henry ◽  
Marc-André Delsuc ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Molecular Weights ◽  
Dosy Nmr
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