31p nmr spectra
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scholarly journals The comparative analysis of the solid-state 31P NMR spectra of Re-Pt vinylidene complexes

2019 ◽  
Vol 1399 ◽  
pp. 022028
Author(s):  
K T Smolyarov ◽  
N V Volkov ◽  
A N Matsulev ◽  
A A Kondrasenko
Keyword(s):  
Comparative Analysis ◽  
Solid State ◽  
Nmr Spectra ◽  
31P Nmr ◽  
Vinylidene Complexes ◽  
31P Nmr Spectra

A Simple Coulombic Model for 31P NMR Spectra of Cluster-Encapsulated Phosphorus Atoms

2019 ◽  
Vol 58 (13) ◽  
pp. 8877-8883 ◽  
Author(s):  
Mark Baranov ◽  
Tal Tubul ◽  
Yohai Azulai ◽  
Ira A. Weinstock
Keyword(s):  
Nmr Spectra ◽  
31P Nmr ◽  
31P Nmr Spectra

Hydrothermal synthesis, X-ray structure refinement, 31P NMR spectra and vibrational study of NaLa(HPO4)2

2013 ◽  
Vol 1049 ◽  
pp. 36-40 ◽  
Author(s):  
C. Ben Hassen ◽  
M. Boujelbene ◽  
T. Mhiri
Keyword(s):  
Hydrothermal Synthesis ◽  
Nmr Spectra ◽  
31P Nmr ◽  
Structure Refinement ◽  
X Ray ◽  
Vibrational Study ◽  
31P Nmr Spectra

The Analyses of Lignin Structure and Molecular Distribution of pH6 from Dissolved Soda-AQ Lignin

2012 ◽  
Vol 550-553 ◽  
pp. 3299-3304
Author(s):  
Li Bin Dong ◽  
Yu Liu
Keyword(s):  
Nmr Spectra ◽  
31P Nmr ◽  
Black Liquor ◽  
Gel Permeation Chromatography ◽  
Raw Material ◽  
Total Phenolic ◽  
Chromatography Analysis ◽  
31P Nmr Spectra ◽  
Ft Ir ◽  
Analysis System

The Chinese poplar was used as the raw material in this study. Conversational Soda-AQ cooking was carried out. The acid-precipitating method was used to separate the dissolved lignin from the black liquor. The FT-IR spectra was quantitatively analyzed and compared in order to discover the change of lignin structures. The lignin 31P—NMR spectra of pH6 lignin samples was obtained and the functional groups of the lignin was quantitatively analyzed and compared in order to discover the change of lignin structures during Soda-AQ cooking. Syrinl-OH was 50~60 percent, Guaiacyl-OH was 40~50 percent. The pH6 lignin samples of 31P-NMR spectra aliphatic OH was 5.93 m mol/g, COOH was 0.99 m mol/g, total phenolic OH 7.07 m mol/g. The molecular weight distribution curves of lignin samples obtained from gel permeation chromatography analysis system was shown that Mw was 1506g/mol, Mn was 2888 g/mol and polydispersity was 5257 g/mol.

The Analyses of Lignin Structure and Molecular Distribution of pH6 from Dissolved Kraft Lignin

2012 ◽  
Vol 550-553 ◽  
pp. 3311-3315
Author(s):  
Chun Jing Zhang ◽  
Yu Liu ◽  
Li Bin Dong
Keyword(s):  
Nmr Spectra ◽  
31P Nmr ◽  
Black Liquor ◽  
Gel Permeation Chromatography ◽  
Raw Material ◽  
Total Phenolic ◽  
Chromatography Analysis ◽  
31P Nmr Spectra ◽  
Kraft Cooking ◽  
Analysis System

The Chinese poplar was used as the raw material in this study. Conversational Kraft cooking was carried out. The acid-precipitating method was used to separate the dissolved lignin from the black liquor. The FT-IR spectra was quantitatively analyzed and compared in order to discover the change of lignin structures. The lignin 31P—NMR spectra of pH6 lignin samples was obtained and the functional groups of the lignin was quantitatively analyzed and compared in order to discover the change of lignin structures during Kraft cooking. Syrinl-OH was 50~60 percent, Guaiacyl-OH was 40~50 percent. The pH6 lignin samples of 31P-NMR spectra aliphatic OH was 2.75 m mol/g, COOH was 1.75 m mol/g, total phenolic OH 5.66 m mol/g. The molecular weight distribution curves of lignin samples obtained from gel permeation chromatography analysis system was shown that Mw was 1375g/mol, Mn was 2426 g/mol and polydispersity was 4424 g/mol.

ChemInform Abstract: The First Direct Observation of a Phosphenite: IR, UV, and 31P NMR Spectra of 2,6-Di-tert-butyl-4-methylphenyl Phosphenite.

ChemInform ◽  
2010 ◽  
Vol 24 (18) ◽  
pp. no-no
Author(s):  
L. D. QUIN ◽  
S. JANKOWSKI ◽  
A. G. SOMMESE ◽  
P. M. LAHTI ◽  
D. B. CHESNUT
Keyword(s):  
Direct Observation ◽  
Nmr Spectra ◽  
31P Nmr ◽  
Tert Butyl ◽  
31P Nmr Spectra

ChemInform Abstract: Sterically Congested Phosphite Ligands: Synthesis, Crystallographic Characterization, and Observation of Unprecedented Eight-Bond 31P,31P Coupling in the 31P-NMR Spectra.

ChemInform ◽  
2010 ◽  
Vol 24 (30) ◽  
pp. no-no
Author(s):  
S. D. PASTOR ◽  
S. P. SHUM ◽  
R. K. RODEBAUGH ◽  
A. D. DEBELLIS ◽  
F. H. CLARKE
Keyword(s):  
Nmr Spectra ◽  
31P Nmr ◽  
31P Nmr Spectra ◽  
Phosphite Ligands

Structure and dynamic behaviour of lanthanide nitrate complexes with bis(diphenylphosphorylmethyl)mesitylene in solutions: The nature of unexpected 31P NMR spectra

2009 ◽  
Vol 362 (10) ◽  
pp. 3607-3616 ◽  
Author(s):  
Anna G. Matveeva ◽  
Alexander S. Peregudov ◽  
Evgenij I. Matrosov ◽  
Zoya A. Starikova ◽  
Sergej V. Matveev ◽  
...  
Keyword(s):  
Nmr Spectra ◽  
31P Nmr ◽  
Dynamic Behaviour ◽  
Lanthanide Nitrate ◽  
31P Nmr Spectra ◽  
Lanthanide Nitrate Complexes ◽  
Nitrate Complexes

Rapid assignment of solution 31P NMR spectra of large proteins by solid-state spectroscopy

2006 ◽  
Vol 346 (1) ◽  
pp. 301-305 ◽  
Author(s):  
Adriana Iuga ◽  
Michael Spoerner ◽  
Christian Ader ◽  
Eike Brunner ◽  
Hans Robert Kalbitzer
Keyword(s):  
Solid State ◽  
Nmr Spectra ◽  
31P Nmr ◽  
Large Proteins ◽  
31P Nmr Spectra
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