Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0167-2991(08)63788-X
Title: Synthesis and characterization of a novel microporous indiumphosphate
Authors: Xu, Y. 
Koh, L.-L. 
An, L.H.
Qiu, S.-L.
Yue, Y.
Issue Date: 1994
Source: Xu, Y.,Koh, L.-L.,An, L.H.,Qiu, S.-L.,Yue, Y. (1994). Synthesis and characterization of a novel microporous indiumphosphate. Studies in Surface Science and Catalysis 84 (C) : 2253-2260. ScholarBank@NUS Repository. https://doi.org/10.1016/S0167-2991(08)63788-X
Abstract: A microporous indiumphosphate has been synthesized for the first time from the hydrothermal reaction of H3PO4, In2O3 and H2O in the presence of one of the following templates, tfiethylamine (Et3N), n-butylamine (n-BuA), dimethylamine (DMA), dipropylamine (DPA), ethylenediamine (EDA), or tetramethylammonium hydroxide (TMAOH). Single crystal x-ray diffraction structural analysis demonstrates that the crystal crystallizes in orthorhombic symmetry, space group Pbca. One asymmetric unit consists of InPP4(H2O)2 in composition. The 3D microporous structure contains 6- and 4-ring un-intersected parallel channels running along the 2>-axis. In and P atoms appear in a strict alternative order bridged through O atoms forming the octahedral and tetrahedral geometry respectively. Among the six O ligands of the In, four are framework 0 atoms and the other two are water oxygens. The P atoms are exclusively coordinated to framework O atoms. XRD, FT-IR and TG studies demonstrate that the microporous indiumphosphate is unstable to thermal treatment above 330°C which is believed to be the consequence of removal of structural water molecules. © 1994 Elsevier Science B.V. All rights reserved.
Source Title: Studies in Surface Science and Catalysis
URI: http://scholarbank.nus.edu.sg/handle/10635/95032
ISSN: 01672991
DOI: 10.1016/S0167-2991(08)63788-X
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