Synthesis and Conformational Study of the First Dithia[3]metacyclo[3](2,4)pyrrolophane and [2]Metacyclo[2](2,4)pyrrolophane. 1H NMR Spectroscopic Evidence for a Novel Hydrogen-Bonding Phenomenon

1994 ◽  
Vol 59 (24) ◽  
pp. 7341-7345 ◽  
Author(s):  
Yee-Hing Lai ◽  
K. F. Mok ◽  
Yuhua Ting
Keyword(s):  
Hydrogen Bonding ◽  
1H Nmr ◽  
Conformational Study ◽  
Spectroscopic Evidence

Conformational study on ribonucleoside O-phosphonylmethyl derivatives by 1H NMR spectroscopy

1985 ◽  
Vol 50 (8) ◽  
pp. 1899-1905 ◽  
Author(s):  
Milena Masojídková ◽  
Jaroslav Zajíček ◽  
Miloš Buděšínský ◽  
Ivan Rosenberg ◽  
Antonín Holý
Keyword(s):  
Nmr Spectroscopy ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Conformational Study ◽  
H Nmr ◽  
Conformational Properties

Conformational properties of ribonucleoside 5'-O-phosphonylmethyl derivatives have been determined by 1H NMR spectroscopy and compared with those of natural nucleosides and 5'-nucleotides.

scholarly journals Spectroscopic evidence of ‘jumping and pecking’ of cholinium and H-bond enhanced cation–cation interaction in ionic liquids

2015 ◽  
Vol 17 (46) ◽  
pp. 30978-30982 ◽  
Author(s):  
Anne Knorr ◽  
Koichi Fumino ◽  
Anne-Marie Bonsa ◽  
Ralf Ludwig
Keyword(s):  
Hydrogen Bonding ◽  
Ionic Liquids ◽  
Electrostatic Interaction ◽  
Spectroscopic Evidence

Spectroscopic evidence for cation–cation interaction in ionic liquids. The repulsive electrostatic interaction is overcome by hydrogen bonding between ions of like charge.

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

Spectroscopic Evidence forIntermolecularM−H···H−OR Hydrogen Bonding:  Interaction of WH(CO)2(NO)L2Hydrides with Acidic Alcohols

1996 ◽  
Vol 118 (5) ◽  
pp. 1105-1112 ◽  
Author(s):  
Elena S. Shubina ◽  
Natalia V. Belkova ◽  
Aleksandr N. Krylov ◽  
Evgeni V. Vorontsov ◽  
Lina M. Epstein ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Hydrogen Bonding Interaction ◽  
Spectroscopic Evidence ◽  
Bonding Interaction

On-line 1H NMR spectroscopic investigation of hydrogen bonding in supercritical and near critical CO2–methanol up to 35MPa and 403K

2007 ◽  
Vol 43 (2) ◽  
pp. 267-275 ◽  
Author(s):  
Michael Maiwald ◽  
Hongping Li ◽  
Thorsten Schnabel ◽  
Kay Braun ◽  
Hans Hasse
Keyword(s):  
Hydrogen Bonding ◽  
1H Nmr ◽  
Spectroscopic Investigation ◽  
On Line

N–H⋯O hydrogen bonding: FT IR, NIR and 1H NMR study of N-methylpropionamide – Cyclic ether systems

2007 ◽  
Vol 834-836 ◽  
pp. 249-252 ◽  
Author(s):  
A. Nikolić ◽  
B. Jović ◽  
S. Csanady ◽  
S. Petrović
Keyword(s):  
Hydrogen Bonding ◽  
1H Nmr ◽  
Cyclic Ether ◽  
Nmr Study ◽  
Ft Ir

scholarly journals Sugar-derived oxazolone pseudotetrapeptide as γ-turn inducer and anion-selective transporter

2019 ◽  
Vol 15 ◽  
pp. 2419-2427
Author(s):  
Sachin S Burade ◽  
Sushil V Pawar ◽  
Tanmoy Saha ◽  
Navanath Kumbhar ◽  
Amol S Kotmale ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Amino Acid ◽  
Molecular Modeling ◽  
Intramolecular Cyclization ◽  
Membered Ring ◽  
Conformational Study ◽  
Oxazole Ring ◽  
Solution State ◽  
Modeling Studies ◽  
Molecular Modeling Studies

The intramolecular cyclization of a C-3-tetrasubstituted furanoid sugar amino acid-derived linear tetrapeptide afforded an oxazolone pseudo-peptide with the formation of an oxazole ring at the C-terminus. A conformational study of the oxazolone pseudo-peptide showed intramolecular C=O···HN(II) hydrogen bonding in a seven-membered ring leading to a γ-turn conformation. This fact was supported by a solution-state NMR and molecular modeling studies. The oxazolone pseudotetrapeptide was found to be a better Cl−-selective transporter for which an anion–anion antiport mechanism was established.

1H-NMR conformational study of a synthetic peptide derived from the consensus sequence of Annexins

2009 ◽  
Vol 39 (2) ◽  
pp. 117-122 ◽  
Author(s):  
FRANÇOIS MACQUAIRE ◽  
FRANÇOISE BALEUX ◽  
TAM HUYNH-DINH ◽  
JEAN MICHEL NEUMANN ◽  
ALAIN SANSON
Keyword(s):  
1H Nmr ◽  
Synthetic Peptide ◽  
Consensus Sequence ◽  
Conformational Study
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