𝔖 Bobbio Scriptorium
✦   LIBER   ✦

27Al solid-state NMR studies of molybdenum bronze intercalated with aluminium polyoxycations

✍ Scribed by Wacław Kołodziejski; Erwin Lalik; Anton Lerf; Jacek Klinowski

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
382 KB
Volume
194
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis

27A1 magic-angle-spinning (MAS) NMR spectra with and without cross-polarization and quadrupole nutation spectra with MAS of the molybdenum bronze Na02s (H20)yMoO3 intercalated with aluminium polyoxycations have been measured. Apart from the signal from 4-coordinated AI at 64.6 ppm assigned to the intercalated polyoxycations, there are three main signals from 6-coordinated AI: at 14.0 ppm, 0 ppm, and a very wide signal at ~ -50 to 20 ppm with a maximum close to 3¢Orf/2n in F~. We assign the signal at 0 ppm to AI(H20)63÷ ions, and discuss the possible origin of the other two signals.

📜 SIMILAR VOLUMES

Aluminium-27 Solid-State NMR Study of Al
Aluminium-27 Solid-State NMR Study of Aluminium Coordination Complexes of Alizarin
✍ Patrick Soubayrol; Gilbert Dana; Pascal P. Man 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 637 KB

The structures of complexes obtained by the reaction of alizarin (C,,H,O,) and Al'+ in basic media depend upon the reaction solvent and the nature of the base. With aqueous or methanolic solutions of sodium hydroxide a binuclear complex [ AI,(p-OH),(C,,H,0,),(Na)4(H~O)4] was obtained, which is stabl

Solid-state 27Al NMR studies of AlPO4-8
Solid-state 27Al NMR studies of AlPO4-8
✍ João Rocha; Xinsheng Liu; Jacek Klinowski 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 405 KB

Hydrated aluminophosphate AIPO,-8 has been studied by fast "AI magic-angle-spinning (MAS) NMR at 4.7 and 9.4 T, 'H-\*'AI MAS NMR with cross-polarization (CP/MAS) and by quadrupole nutation NMR. The material contains four and possibly five crystallographically inequivalent sites for aluminium

Complexes of aluminium with aminopolycar
Complexes of aluminium with aminopolycarboxylic acids: 27Al NMR and potentiometric studies
✍ R. K. Iyer; S. B. Karweer; V. K. Jain 📂 Article 📅 1989 🏛 John Wiley and Sons 🌐 English ⚖ 651 KB

The reactions of A13+ ion with a series of aminopolycarboxylic acids containing coordinating sites (denticity, n) ranging from 3 to 8 were studied by potentiometric and "A1 NMR methods. Hydrolysis constants of the complexes were determined by potentiometry. The 27Al {'H} NMR data indicate a nearly l

Solid-state high-resolution 27Al-NMR stu
Solid-state high-resolution 27Al-NMR studies of sodium alumosilicate glasses with different thermal history
✍ E. Hallas; Dr. M. Hähnert 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 English ⚖ 191 KB

Zentrnlinstitut fur nnorganische Chemie, Akademie der Wissemchaften der DDR, Berlin-DDR ## Solid-state High-resolution 27Al-NMR Studies of Sodium Alumosilicate Glasses with Different Thermal History The dependence of various structure parameters (stability of coordination polyhedra, chemical bond

Studies on complex species of aluminium
Studies on complex species of aluminium with aminocarboxylic acids by 27Al NMR spectroscopy
✍ S. B. Karweer; B. P. Pillai; R. K. Iyer 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 214 KB

## Abstract The reactions of Al^3+^ ion with glycine, picolinic acid, 1,2‐propylenediaminetetraacetic acid and triethylenetetra‐minehexaacetic acid (H~p~L) were studied by potentiometric and ^27^Al NMR methods, and the complex species in solution at different pH values were identified. Acidic hydro