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Aluminum polyphosphate thermoreversible gels: A study by P-31 and Al-27 NMR spectroscopy
(Academic Press Inc Jnl-comp SubscriptionsSan Diego, 1995)
NMR-based identification of metabolites in polar and non-polar extracts of avian liver
(MDPI, 2017-12)
Metabolites present in liver provide important clues regarding the physiological state of an organism. The aim of this work was to evaluate a protocol for high-throughput NMR-based analysis of polar and non-polar metabolites ...
Molecular structure, experimental and theoretical 1H and 13C NMR chemical shift assignment of cyclic and acyclic α,β-unsaturated esters
(John Wiley & Sons Ltd, 2014-01)
The experimental 1H and 13C NMR spectra of 13 phenyl cinnamates and four 4-methylcoumarins were investigated and their chemical shifts assigned on the basis of the two-dimensional spectra. For the unsubstituted cinnamic ...
Sol-gel preparation of mesoporous Al2O3-SiO2 glasses: structural evolution monitored by solid state NMR
(SpringerNew York, 2014-06)
Glasses along the composition line 0.5Al2O3–xSiO2 (1 ≤ x ≤ 6) were prepared via a novel sol-gel route using tetraethylorthosilicate and aluminum lactate as precursors. The structural evolution from solution to gel to glass ...
Rouse dynamics in PEO-PPO-PEO block-copolymers in aqueous solution as observed through fast field-cycling NMR relaxometry
(Elsevier, 2018-08-15)
We present a proton fast field-cycling (FFC) NMR relaxometry study of the molecular dynamics in three different deuterated water-dispersed triblock copolymers of ethylene oxide (EO) and propylene oxide (PO):EO80PO27EO80(F68), ...
Multi-quantum echoes in GdAl2 zero-field high-resolution NMR
(Academic PressMaryland Heights, 2011-10)
In this paper we present a series of high-resolution zero-field NMR spectra of the polycrystalline intermetallic compound GdAl2. The spectra were obtained with the sample at 4.2 K in the ordered magnetic state and in the ...
Comparative analysis of exchangeable aluminum in a tropical soil under long-term no-till cultivation
(2022-02-01)
Aluminum toxicity is a key determinant of crop yield for acid soils. Techniques used to characterize a soil's exchangeable Al content often yield discordant results, thus impeding the implementation of corrective measures. ...
Synthesis and spectroscopic 27Al NMR and Raman characterization of new materials based on the assembly of [AlO4Al12(OH)24(H2O)12] 7þ isopolycation and Co–Cr and [AlMo6O24H6] 3- Anderson heteropolyanions
(Elsevier Science, 2007-09-30)
New advanced inorganic composite materials were prepared by combination of the polycation [AlO4Al12(OH)24(H2O)12]7+ with heteropolyoxomolybdates of Anderson type structure with formula: [XMo6O24H6]3- where X=Al(III), ...
Structural Characterization of Rare-Earth Doped Yttrium Aluminoborate Laser Glasses Using Solid State NMR
(AMER CHEMICAL SOC, 2009)
The structure of laser glasses in the system (B(2)O(3))(0.6){(Al(2)O(3))(0.4-x)(Y(2)O(3))(x)} (0.1 <= x <= 0.25) has been investigated by means of (11)B, (27)Al, and (89)Y solid state NMR as well as Y-3d core-level X-ray ...
Glass-to-Vitroceramic Transition in the Yttrium Aluminoborate System: Structural Studies by Solid-State NMR
(AMER CHEMICAL SOC, 2010)
The crystallization of laser glasses in the system (B(2)O(3))(0.6){(Al(2)O(3))(0.4-y)(Y(2)O(3))(y)} (0.1 <= y <= 0.25) doped with different levels of ytterbium oxide has been investigated by X-ray powder diffraction, ...