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Synthesis and characterization of precursors for group II metal aluminates
Author(s) -
Narayanan Ramasubramanian,
Laine Richrad M.
Publication year - 1997
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/(sici)1099-0739(199710/11)11:10/11<919::aid-aoc666>3.0.co;2-z
Subject(s) - chemistry , triethanolamine , alkoxide , metal , inorganic chemistry , ethylene glycol , elemental analysis , alkaline earth metal , pyrolysis , molecule , polymer chemistry , main group element , layered double hydroxides , organic chemistry , transition metal , catalysis , analytical chemistry (journal) , hydroxide
Precursors to Group II metal aluminates (MAI 2 O 4 , M=Mg, Ca, Ba, Sr) are synthesized from inexpensive starting materials including Group II metal oxides/hydroxides, Al(OH) 3 , triethanolamine (TEA) and ethylene glycol, in a one‐pot synthesis process. The precursors are soluble in common organic solvents and can be handled in moist air for a reasonable period of time. On pyrolysis in air to 1200 °C, all three precursors transform to the corresponding Group II metal aluminates. A termetallic double alkoxide, ‘ionomer‐like’ structure is proposed, wherein the alkaline‐earth metal is encapsulated by a TEA molecule bridging two alumatrane units. The precursors were characterized using TGA, NMR, mass spectroscopy and elemental analyses, and the pyrolysed precursors were briefly characterized using x‐ray diffraction analysis. © 1997 John Wiley & Sons, Ltd.