Chem. J. Chinese Universities

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Structural Investigation of Layered Aluminophosphate UT-4 by Solidstate NMR

ZHOU Dan1, CHEN Lei2, YU Ji-Hong1*, DENG Feng2, XU Ru-Ren1   

  1. 1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China;
    2. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China
  • Received:2005-11-07 Revised:1900-01-01 Online:2006-06-10 Published:2006-06-10
  • Contact: YU Ji-Hong

Abstract: Pure UT-4 crystalline phase was synthesized by using pyridine as the solvent instead of TEG in the system of Al2O3-H3PO4-C6H11NH2-Py. 27Al MAS NMR, 31P MAS NMR, 1H→1P cross-polarization(CP) and 27Al-31P heteronuclear correlation(HETCOR) experiments were employed to investigate the framework of UT-4, a two-dimensional layer aluminophosphate, which was first synthesized in the system of TEG, coexisting with UT-5. In the assignment of two fourcoordinated Al atoms, two methods were used. The assignment of 31P signals is based on the 27Al-31P HETCOR spectrum.

Key words: Solid-state NMR, Aluminophosphate, Microporous material

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