层状磷酸铝UT-4的固体核磁共振研究  

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

作　　者：周丹[1] 陈雷[2] 于吉红[1] 邓风[2] 徐如人[1] 

机构地区：[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

出　　处：《高等学校化学学报》2006年第6期991-994,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学杰出青年基金(批准号:20125101)资助

摘　　要：用吡啶代替四乙二醇作为溶剂,在A l2O3-H3PO4-C6H11NH2-Py体系下合成出层状阴离子骨架磷酸铝[A l2P3O12H]2-.2[C6H11NH3+](UT-4)的纯晶相,采用一维27A l,31P MAS NMR,1H→31P CP(Cross Polariza-tion)以及二维27A l3-1P HETCOR(Heteronuc lear 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27A l信号进行了归属,并通过分析27A l3-1P HETCOR谱对31P信号进行了归属.Pure UT-4 crystalline phase was synthesized by using pyridine as the solvent instead of TEG in the system of Al2O3-H3PO4-C6H11 NH2Py.^ 27Al MAS NMR,^ 31P MAS NMR, ^1H→^1P cross-polarization（CP） and ^27Al-^31 P 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.

关 键 词：固体核磁共振 磷酸铝 微孔材料 

分 类 号：O614[理学—无机化学]