Application of RDC enhanced NMR spectroscopy in structural analysis of thiacalix[4]arene derivatives

2015 ◽  
Vol 13 (37) ◽  
pp. 9610-9618 ◽  
Author(s):  
L. Vrzal ◽  
M. Kratochvílová-Šimánová ◽  
T. Landovský ◽  
K. Polívková ◽  
J. Budka ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Structural Analysis ◽  
Dipolar Coupling ◽  
Residual Dipolar Coupling ◽  
Coupling Constant

The conformational behaviour of novel phenoxathiin-based skeletons was studied using the Residual Dipolar Coupling constant (RDC) method.

scholarly journals Residual Dipolar Coupling Enhanced NMR Spectroscopy and Chiroptics: A Powerful Combination for the Complete Elucidation of Symmetrical Small Molecules

2011 ◽  
Vol 17 (43) ◽  
pp. 11983-11986 ◽  
Author(s):  
Carlos Pérez-Balado ◽  
Han Sun ◽  
Christian Griesinger ◽  
Ángel R. de Lera ◽  
Armando Navarro-Vázquez
Keyword(s):  
Nmr Spectroscopy ◽  
Small Molecules ◽  
Dipolar Coupling ◽  
Residual Dipolar Coupling

Reactivity of Sodium Hexaethyl-2,4-dicarba-nido-hexaborate(1-)

1999 ◽  
Vol 64 (6) ◽  
pp. 977-985 ◽  
Author(s):  
Bernd Wrackmeyer ◽  
Hans-Jörg Schanz ◽  
Wolfgang Milius ◽  
Catherine McCammon
Keyword(s):  
Mössbauer Spectroscopy ◽  
Nmr Spectroscopy ◽  
Structural Analysis ◽  
Hydrogen Atom ◽  
Mossbauer Spectroscopy ◽  
Sandwich Complex ◽  
X Ray ◽  
Bromo Derivative ◽  
Boron Tribromide ◽  
C Nmr

Sodium hexaethyl-2,4-dicarba-nido-hexaborate(1-) (6), available from hexaethyl-2,4-dicarba- nido-hexaborane(8) (4) by deprotonation, reacts with deuterated methanol, CD3OD, to give back 4 without H/D exchange of the B-H-B hydrogen atom. The reaction of 6 with diethylboron chloride, Et2BCl, affords hexaethyl-2,4-dicarba-closo-hexaborane(6) (7), the first example of a peralkylated carborane of this type. In contrast, the reaction of 6 with boron tribromide, BBr3, leads mainly to 2,3,4,5,6,7-hexaethyl-2,4-dicarba-closo-heptaborane(7) (8), together with the corresponding 1-bromo derivative (9) and the closo-carborane 7 as side products. The reaction of two equivalents of 6 with FeCl2 gives the air-stable sandwich complex bis[hexaethyl-2,4-dicarba-nido-hexaborate(1-)]iron 10 which was characterised by X-ray structural analysis. All products were characterised by 1H, 11B and 13C NMR spectroscopy, and 57Fe Mössbauer spectroscopy was used to study 10.

scholarly journals Structure-Free Validation of Residual Dipolar Coupling and Paramagnetic Relaxation Enhancement Measurements of Disordered Proteins

Biochemistry ◽  
2015 ◽  
Vol 54 (46) ◽  
pp. 6876-6886 ◽  
Author(s):  
Francisco N. Newby ◽  
Alfonso De Simone ◽  
Maho Yagi-Utsumi ◽  
Xavier Salvatella ◽  
Christopher M. Dobson ◽  
...  
Keyword(s):  
Dipolar Coupling ◽  
Residual Dipolar Coupling ◽  
Paramagnetic Relaxation ◽  
Paramagnetic Relaxation Enhancement ◽  
Disordered Proteins

ChemInform Abstract: 15N NMR Spectroscopy in Structural Analysis

ChemInform ◽  
2010 ◽  
Vol 33 (31) ◽  
pp. no-no
Author(s):  
Radek Marek ◽  
Antonin Lycka
Keyword(s):  
Nmr Spectroscopy ◽  
Structural Analysis ◽  
15N Nmr ◽  
15N Nmr Spectroscopy
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