Dynamic 1H NMR spectroscopic study of hindered internal rotation in selected N,N-dialkyl isonicotinamides: an experimental and DFT analysis

Tetrahedron ◽  
2013 ◽  
Vol 69 (38) ◽  
pp. 8147-8154 ◽  
Author(s):  
Ewa A. Skorupska ◽  
Ryszard B. Nazarski ◽  
Magdalena Ciechańska ◽  
Andrzej Jóźwiak ◽  
Arkadiusz Kłys
Keyword(s):  
Spectroscopic Study ◽  
Internal Rotation ◽  
1H Nmr ◽  
Dynamic 1H Nmr

Dynamic 1H NMR spectroscopic study of the restricted SN rotation in aryl-N-(arylsulfonyl)-N-(triphenylphosphoranylidene)imidocarbamates

2007 ◽  
Vol 841 (1-3) ◽  
pp. 61-66 ◽  
Author(s):  
Ali Reza Modarresi-Alam ◽  
Ferydoon Khamooshi ◽  
Mohsen Rostamizadeh ◽  
Hossein Keykha ◽  
Mahmoud Nasrollahzadeh ◽  
...  
Keyword(s):  
Spectroscopic Study ◽  
1H Nmr ◽  
Dynamic 1H Nmr

scholarly journals Dynamic 1H NMR Study of the Hindered Internal Rotation in a Particular Biological Phosphorus Ylide Involving 6-Azauracil

2015 ◽  
Vol 8 (2) ◽  
pp. 565-572
Author(s):  
SAYYED HABIBI-KHORASSANI ◽  
MEHDI SHAHRAKI ◽  
MALEK MAGHSOODLOU ◽  
EIDEH MOFARRAH ◽  
ELHAM MOFARRAH ◽  
...  
Keyword(s):  
Internal Rotation ◽  
1H Nmr ◽  
Phosphorus Ylide ◽  
Nmr Study ◽  
Dynamic 1H Nmr ◽  
Biological Phosphorus

scholarly journals Hydrogen bonding in push-pull 5-substituted-2-alkylidene-4-oxothiazolidines: 1H-MNR spectroscopic study

2003 ◽  
Vol 68 (1) ◽  
pp. 1-7 ◽  
Author(s):  
R. Markovic ◽  
A. Shirazi ◽  
Zdravko Dzambaski ◽  
Marija Baranac ◽  
Dragica Minic-Popovic
Keyword(s):  
Hydrogen Bonding ◽  
Nmr Spectroscopy ◽  
Hydrogen Bonds ◽  
Spectroscopic Study ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Solvent Polarity ◽  
Concentration Effect ◽  
Intermolecular Hydrogen Bonding ◽  
Dynamic 1H Nmr

Application of dynamic 1H-NMR spectroscopy added to the understanding of the hydrogen bonds existing in the structurally related 5-substituted-2-alkylidene-4-oxothiazolidines in polar and apolar solvents. The equilibrated mixtures of these typical push-pull alkenes in CDCl3 consist of the intramolecularly H-bonded (E)-isomer and intermolecularly H-bonded (Z)-isomer in varying proportions which depend on the solvent polarity. For the representative of the series (Z)-2-(5-ethoxycarbonylmethyl-4-oxothiazolidin-2-ylidene)-1-phenylethanone a concentration effect on the degree of intermolecular hydrogen bonding in apolar CDCl3 has been studied.

Conformational study of a strained tolanophane by dynamic 1H NMR spectroscopy and computational methods

2008 ◽  
Vol 139 (10) ◽  
pp. 1185-1189 ◽  
Author(s):  
Hossein Reza Darabi ◽  
Marjan Azimzadeh Arani ◽  
Mohsen Tafazzoli ◽  
Mina Ghiasi
Keyword(s):  
Nmr Spectroscopy ◽  
1H Nmr ◽  
Computational Methods ◽  
1H Nmr Spectroscopy ◽  
Conformational Study ◽  
Dynamic 1H Nmr

1H NMR spectroscopic study of complexation of citalopram with β-cyclodextrin in aqueous solution

2007 ◽  
Vol 45 (3) ◽  
pp. 253-256 ◽  
Author(s):  
Syed Mashhood Ali ◽  
Arti Maheshwari ◽  
Bharat Inder Fozdar
Keyword(s):  
Aqueous Solution ◽  
Spectroscopic Study ◽  
1H Nmr

Online 1H NMR Spectroscopic Study of the Reaction Kinetics in Mixtures of Acetaldehyde and Water Using a New Microreactor Probe Head

2014 ◽  
Vol 53 (45) ◽  
pp. 17589-17596 ◽  
Author(s):  
Andreas Scheithauer ◽  
Alexander Brächer ◽  
Thomas Grützner ◽  
Daniel Zollinger ◽  
Werner R. Thiel ◽  
...  
Keyword(s):  
Spectroscopic Study ◽  
Reaction Kinetics ◽  
1H Nmr ◽  
Probe Head

Synthesis and Study of Dynamic 1H NMR of Carbon–Carbon Double Bond Rotation Energy Barrier in Stable Phenothiazine Phosphorus Ylides

2007 ◽  
Vol 182 (3) ◽  
pp. 647-655 ◽  
Author(s):  
Malek Taher Maghsoodlou ◽  
Sayyed Mostafa Habibi Khorassani ◽  
Uranous Niroumand ◽  
Faramarz Rostami Charati ◽  
Maryam Khosrosharodi
Keyword(s):  
Double Bond ◽  
1H Nmr ◽  
Energy Barrier ◽  
Phosphorus Ylides ◽  
Bond Rotation ◽  
Carbon Double Bond ◽  
Dynamic 1H Nmr ◽  
Rotation Energy
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