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Dual Function of Racemic Isopropanolamine as Solvent and as Template for the Synthesis of a New Layered Aluminophosphate: [NH3CH2CH(OH)CH3]3·Al3P4O16

✍ Scribed by Hong-Ming Yuan; Guang-Shan Zhu; Jie-Sheng Chen; Wei Chen; Guang-Di Yang; Ru-Ren Xu

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
197 KB
Volume
151
Category
Article
ISSN
0022-4596

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✦ Synopsis

A new layered aluminophosphate [NH 3 CH 2 CH(OH)CH 3 ] 3 ' Al 3 P 4 O 16 containing a racemic mixture of isopropanolamine has been synthesized using isopropanolamine as the predominant solvent and the template and its structure was determined by means of single-crystal X-ray di4raction. The title compound crystallizes in the trigonal space group R3 with M ‫؍‬ 689.18, a ‫؍‬ 13.1068(15) A > , c ‫؍‬ 26.935(4) A > , Z ‫؍‬ 6, V ‫؍‬ 4007.2(9) A > 3 , R ‫؍‬ 0.0338, and R w ‫؍‬ 0.0982. The structure consists of [Al 3 P 4 O 16 ] 3؊ macroanionic sheets with a 4؋6؋12 network stacked in an ABCABC sequence. The inorganic layers are constructed from alternating AlO 4 and PO 3 (‫؍‬O) tetrahedral units. The protonated isopropanolamine cations between inorganic layers are arranged in a double-layer fashion with each layer containing only one type of enantiomer. The as-synthesized product is characterized by powder X-ray di4raction, IR spectroscopy, inductive coupled plasma analysis, TGA and DTA.

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Synthesis and Structure of an Unusual New Layered Aluminophosphate Containing Oxalate Groups, [NH3CH2CH2NH3]2.5[Al4H(HPO4)4(H2PO4)2(C2O4)4]
✍ Philip Lightfoot; Zoe A.D. Lethbridge; Russell E. Morris; David S. Wragg; Paul A 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 143 KB

The first example of an aluminophosphate containing organic anions covalently bonded to the framework of the structure is reported was prepared hydrothermally and adopts a layered structure. The oxalate groups act as bidentate ligands to Al 3؉ and hold the structure together by strong interlayer P-