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层状磷酸铝UT-4的固体核磁共振研究

周丹1, 陈雷2, 于吉红1, 邓风2, 徐如人1   

  1. 1. 吉林大学化学学院, 无机合成与制备化学国家重点实验室, 长春 130012
    2. 中国科学院武汉物理与数学研究所, 波谱与原子分子物理国家重点实验室, 武汉 430071
  • 收稿日期:2005-11-07 修回日期:1900-01-01 出版日期:2006-06-10 发布日期:2006-06-10
  • 通讯作者: 于吉红

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

摘要:

用吡啶代替四乙二醇作为溶剂, 在Al2O3-H3PO4-C6H11NH2-Py体系下合成出层状阴离子骨架磷酸铝[Al2P3O12H]2-·2[C6H11NH+3](UT-4)的纯晶相, 采用一维27Al, 31P MAS NMR , 1H→31P CP(Cross Polarization)以及二维27Al-31P HETCOR(Heteronuclear Correlation)高分辨固体核磁共振技术对其骨架结构进行了表征. 采用两种方法对 27Al信号进行了归属, 并通过分析27Al-31P HETCOR谱对31P 信号进行了归属.

关键词: 固体核磁共振, 磷酸铝, 微孔材料

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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