Structural Characterization of Glass from the Inversion of23Na and27Al 3Q-MAS NMR Spectra

F. Angeli; T. Charpentier; P. Faucon; J.-C. Petit

doi:10.1021/jp9910035

Structural characterization of ionomer glasses by multinuclear solid state MAS-NMR spectroscopy

Journal of Non-Crystalline Solids ◽

10.1016/j.jnoncrysol.2006.12.001 ◽

2007 ◽

Vol 353 (3) ◽

pp. 237-243 ◽

Cited By ~ 30

Author(s):

Shigeki Matsuya ◽

Artemis Stamboulis ◽

Robert G. Hill ◽

Robert V. Law

Keyword(s):

Solid State ◽

Nmr Spectroscopy ◽

Structural Characterization ◽

Mas Nmr

Characterization of aluminosilicate (mullite) precursors prepared by a mechanochemical process

Journal of Materials Research ◽

10.1557/jmr.1998.0305 ◽

1998 ◽

Vol 13 (8) ◽

pp. 2184-2189 ◽

Cited By ~ 21

Author(s):

J. Temuujin ◽

K. Okada ◽

K. J. D. MacKenzie

Keyword(s):

Heat Treatment ◽

Nmr Spectra ◽

Spinel Phase ◽

Mas Nmr ◽

X Ray Diffraction ◽

Hydrated Alumina ◽

X Ray ◽

New Si ◽

Grinding Time

Aluminosilicate precursors were prepared by mechanochemical treatment of gibbsitesilica gel mixtures. The effect of grinding on their structure and thermal behavior has been examined by 27Al and 29Si MAS NMR, x-ray diffraction (XRD), differential thermal analysis-thermogravimetry (DTA-TG), and Fourier transform infrared (FTIR). After 8 h grinding, the hydrated alumina was completely changed to an amorphous phase which showed a new exothermic DTA peak at about 980 °C due to the formation of γ–Al2O3 or spinel phase. This behavior was related to changes in the Al and Si environments, as deduced from the MAS NMR spectra. With increased grinding time, some 4-coordinated Al appears, together with an Al resonance at about 30 ppm. Simultaneously, a new Si resonance appears at about −90 ppm, indicating a greater degree of homogeneity in the ground samples. Mullite crystallizes at 1200 °C from samples ground for 8–20 h, its XRD intensity increasing with increased milling times, in agreement with the NMR, DTA, and FTIR data. Changes in the Al and Si environments during heat treatment, as reflected by the NMR spectra, are also reported.

A new synthetic route to quadruply bonded tungsten-tungsten and molybdenum-tungsten compounds of the type MM'X4(PR3)4, X = Cl or Br. Structural characterization of quadruply bonded WWBr4(.mu.-dppm)2 and MoWBr4(PMe2Ph)4 and phosphorus-31{proton} NMR spectra of these and related compounds

Inorganic Chemistry ◽

10.1021/ic00057a031 ◽

1993 ◽

Vol 32 (5) ◽

pp. 681-686 ◽

Cited By ~ 12

Author(s):

F. A. Cotton ◽

Judith L. Eglin ◽

Chris A. James

Keyword(s):

Structural Characterization ◽

Nmr Spectra ◽

Proton Nmr ◽

Synthetic Route ◽

Related Compounds

Preparation, Infra-red, MAS-NMR and Structural Characterization of a New Copper Based Inorganic–Organic Hybrid Compound: [C5H6N2Cl]2CuCl4

Journal of Inorganic and Organometallic Polymers and Materials ◽

10.1007/s10904-010-9409-y ◽

2010 ◽

Vol 20 (4) ◽

pp. 746-754 ◽

Cited By ~ 25

Author(s):

Najla Karaa ◽

Besma Hamdi ◽

Abderrazek Oueslati ◽

Abdelhamid Ben Salah ◽

Ridha Zouari

Keyword(s):

Structural Characterization ◽

Mas Nmr ◽

Hybrid Compound ◽

Organic Hybrid ◽

Infra Red

Structural characterization of octahedral metal complexes of [MX3(py)3] type with three pyridines as revealed by 2H NMR spectra

Inorganica Chimica Acta ◽

10.1016/0020-1693(93)03780-e ◽

1994 ◽

Vol 218 (1-2) ◽

pp. 179-184 ◽

Cited By ~ 9

Author(s):

Sumio Kaizaki ◽

J. Ivan Legg

Keyword(s):

Metal Complexes ◽

Structural Characterization ◽

Nmr Spectra ◽

2H Nmr

Structural characterization of glassy phases in the system Na2O–Ga2O3–P2O5 by MAS-NMR, EXAFS and vibrational spectroscopy. I. Cations coordination

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy ◽

10.1016/s1386-1425(99)00279-6 ◽

2000 ◽

Vol 56 (3) ◽

pp. 423-434 ◽

Cited By ~ 14

Author(s):

A Belkébir ◽

J Rocha ◽

A.P Esculcas ◽

P Berthet ◽

S Poisson ◽

...

Keyword(s):

Vibrational Spectroscopy ◽

Structural Characterization ◽

Mas Nmr

Structural Characterization of Phosphorus-Based Networks and Clusters: 31P MAS NMR Spectroscopy and Magnetic Shielding Calculations on Hittorf’s Phosphorus

Chemistry - A European Journal ◽

10.1002/chem.201003560 ◽

2011 ◽

Vol 17 (31) ◽

pp. 8739-8748 ◽

Cited By ~ 12

Author(s):

Thomas Wiegand ◽

Hellmut Eckert ◽

Stefan Grimme ◽

Diana Hoppe ◽

Michael Ruck

Keyword(s):

Nmr Spectroscopy ◽

Structural Characterization ◽

Mas Nmr ◽

Magnetic Shielding ◽

31P Mas Nmr

Structural characterization of high-pressure C-Na 2 Si 2 O 5 by single-crystal diffraction and 29 Si MAS NMR

Physics and Chemistry of Minerals ◽

10.1007/s00269-002-0259-1 ◽

2002 ◽

Vol 29 (7) ◽

pp. 477-484 ◽

Cited By ~ 10

Author(s):

S. Rakić ◽

V. Kahlenberg ◽

C. Weidenthaler ◽

B. Zibrowius

Keyword(s):

High Pressure ◽

Single Crystal ◽

Structural Characterization ◽

Mas Nmr ◽

Single Crystal Diffraction

31P MAS NMR spectroscopy with 93Nb decoupling and DFT calculations: A structural characterization of defects in a niobium-phosphate phase

Solid State Nuclear Magnetic Resonance ◽

10.1016/j.ssnmr.2017.05.003 ◽

2017 ◽

Vol 84 ◽

pp. 210-215 ◽

Cited By ~ 7

Author(s):

Guillaume Girard ◽

Filipe Vasconcelos ◽

Lionel Montagne ◽

Laurent Delevoye

Keyword(s):

Nmr Spectroscopy ◽

Dft Calculations ◽

Structural Characterization ◽

Mas Nmr ◽

Phosphate Phase ◽

31P Mas Nmr ◽

Niobium Phosphate

Characterization of Organically Modified Silicates by 17O Solid State MAS and MQ-MAS NMR

MRS Proceedings ◽

10.1557/proc-576-21 ◽

1999 ◽

Vol 576 ◽

Cited By ~ 1

Author(s):

V. Gualandris ◽

J. Maquet ◽

F. Babonneau ◽

P. Florian ◽

D. Massiot

Keyword(s):

Quantitative Analysis ◽

Solid State ◽

Magnetic Fields ◽

Nmr Spectra ◽

Mas Nmr ◽

Molar Ratios ◽

Condensation Reactions ◽

Organically Modified Silicates ◽

Organically Modified

ABSTRACTOrganically modified silicates have been prepared, using methyltriethoxysilane and tetraethoxysilane in various molar ratios. The final network is thus composed of trifunctionnal T units and tetrafunctionnal Q units. Three types of oxo bridges can be formed through the competitive self-condensation or co-condensation reactions : (T)-O-(T), (Q)-O-(Q) and (T)-O-(Q). 17O-enriched water was used as reactant in order to selectively enrich the various oxo bridges, and to perform 17O solid state MAS-NMR. The combination of MAS experiments recorded at two different magnetic fields, and of the recently discovered MQ-MAS experiments allowed us to identify clearly the three types of oxo bridges. Quantitative analysis was extracted from the MAS-NMR spectra, and compared with calculations based on randomly distributed Si units.