Structure and Dynamic Properties of a Ti-Binding Peptide Bound to TiO2 Nanoparticles As Accessed by 1H NMR Spectroscopy

2016 ◽  
Vol 120 (20) ◽  
pp. 4600-4607 ◽  
Author(s):  
Yu Suzuki ◽  
Heisaburo Shindo ◽  
Tetsuo Asakura
Keyword(s):  
Nmr Spectroscopy ◽  
Tio2 Nanoparticles ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Dynamic Properties ◽  
Binding Peptide

1H NMR spectroscopy study of the dynamic properties of glycogen in solution by steady-state magnetisation measurement with off-resonance irradiation

1998 ◽  
Vol 306 (4) ◽  
pp. 479-491 ◽  
Author(s):  
Claire Wary ◽  
Hervé Desvaux ◽  
Marc Van Cauteren ◽  
Florent Vanstapel ◽  
Pierre G Carlier ◽  
...  
Keyword(s):  
Steady State ◽  
Nmr Spectroscopy ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Dynamic Properties ◽  
Spectroscopy Study ◽  
Magnetisation Measurement

Asymetrical Dimer - allyl-palladiu Complexes II. Data from Infrared Spectra and Chemical Behaviour

2008 ◽  
Vol 59 (7) ◽  
Author(s):  
Maria Maganu ◽  
Filip Chiraleu ◽  
Constantin Draghici ◽  
Gheorghe Mihai
Keyword(s):  
Carbon Monoxide ◽  
Nmr Spectroscopy ◽  
1H Nmr ◽  
Infrared Spectra ◽  
Analytical Methods ◽  
1H Nmr Spectroscopy ◽  
Chemical Behaviour ◽  
The Asymmetry ◽  
Pd Complexes

The previous data obtained by 1H-NMR spectroscopy established the existence of an asymmetry of the bond between Pd and p-allylic groups, even in the p-allyl-Pd complexes dimers which are considered usually symmetric dimers. The asymmetry of the bond depends by the substitutes of the allylic group. Other analytical methods were investigated for additional proof of the obtained results. Thus, this paper discusses how this asymmetry would be reflected in the infrared spectra and in the reaction of the complexes with carbon monoxide.

Diastereoselective Reduction of Selected α-substituted β-keto Esters and the Assignment of the Relative Configuration by 1H-NMR Spectroscopy

2020 ◽  
Vol 07 ◽  
Author(s):  
Christian Trapp ◽  
Corinna Schuster ◽  
Chris Drewniok ◽  
Dieter Greif ◽  
Martin Hofrichter
Keyword(s):  
Nmr Spectroscopy ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Selective Reduction ◽  
Reducing Agents ◽  
Relative Configuration ◽  
Curtius Rearrangement ◽  
Keto Esters ◽  
Hydroxy Esters ◽  
Diastereoselective Reduction

Background:: Chiral β-hydroxy esters and α-substituted β-hydroxy esters represent versatile building blocks for pheromones, β-lactam antibiotics and 1,2- or 1,3-aminoalcohols. Objective:: Synthesis of versatile α-substituted β-keto esters and their diastereoselective reduction to the corresponding syn- or anti-α-substituted β-hydroxy esters. Assignment of the relative configuration by NMR-spectroscopy after a CURTIUS rearrangement of α-substituted β-keto esters to 4-substituted 5-methyloxazolidin-2-ones. Method:: Diastereoselective reduction was achieved by using different LEWIS acids (zinc, titanium and cerium) in combination with complex borohydrides as reducing agents. Assignment of the relative configuration was verified by 1H-NMR spectroscopy after CURTIUS-rearrangement of α-substituted β-hydroxy esters to 4-substituted 5-methyloxazolidin-2-ones. Results:: For the syn-selective reduction, titanium tetrachloride (TiCl4) in combination with a pyridine-borane complex (py BH3) led to diastereoselectivities up to 99% dr. High anti-selective reduction was achieved by using cerium trichloride (CeCl3) and steric hindered reducing agents such as lithium triethylborohydride (LiEt3BH). After CURTIUS-rearrangement of each α-substituted β-hydroxy ester to the corresponding 4-substituted 5-methyloxazolidin-2-one, the relative configuration was confirmed by 1H NMR-spectroscopy. Conclusion:: We have expanded the procedure of LEWIS acid-mediated diastereoselective reduction to bulky α-substituents such as the isopropyl group and the electron withdrawing phenyl ring.

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 Subunit association and structural analysis of platelet basic protein and related proteins investigated by 1H NMR spectroscopy and circular dichroism.

1994 ◽  
Vol 269 (31) ◽  
pp. 20110-20118 ◽  
Author(s):  
Y. Yang ◽  
K.H. Mayo ◽  
T.J. Daly ◽  
J.K. Barry ◽  
G.J. La Rosa
Keyword(s):  
Circular Dichroism ◽  
Nmr Spectroscopy ◽  
Structural Analysis ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Basic Protein ◽  
Related Proteins ◽  
Circular Dichroïsm

CONFORMATIONAL ANALYSIS OF CHOLECYSTOKININ CCK27-33 AND CCK26-33 BY 1H NMR SPECTROSCOPY FLUORESCENCE TRANSFER MEASUREMENTS AND CALCULATIONS.

1987 ◽  
pp. 345-348
Author(s):  
M.C. Fournié-Zaluski ◽  
C. Durieux ◽  
B.P. Roques ◽  
B. Lux ◽  
B. Maigret
Keyword(s):  
Nmr Spectroscopy ◽  
Conformational Analysis ◽  
1H Nmr ◽  
1H Nmr Spectroscopy

Detecting and Differentiating Monosaccharide Enantiomers by 1H NMR Spectroscopy

2021 ◽  
Author(s):  
Masanori Inagaki ◽  
Risa Iwakuma ◽  
Susumu Kawakami ◽  
Hideaki Otsuka ◽  
Harinantenaina L. Rakotondraibe
Keyword(s):  
Nmr Spectroscopy ◽  
1H Nmr ◽  
1H Nmr Spectroscopy

Kinetics of Alkali-Catalyzed Monomethylol Phenol Formation for F/P < 1 by 1H NMR Spectroscopy for Ablative Applications

2021 ◽  
Author(s):  
Praveen Kumar Solasa ◽  
Manu Saraswathi Kesava Pillai ◽  
Vijendra Kumar ◽  
Ancy Smitha Alex ◽  
Srinivas Chinthalapalli ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Kinetics Of
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