Citation: Shu Hua HAN, Wan Guo HOU, Wen Xiu DANG, Jun XU. Coordination Structure of Aluminum in Magnesium Aluminum Hydroxide Studied by ²⁷Al NMR[J]. Chinese Chemical Letters, ;2003, 14(6): 605-608. shu

Coordination Structure of Aluminum in Magnesium Aluminum Hydroxide Studied by ²⁷Al NMR

Key Lab of Colloid and Interface Chemistry of State Education Ministry, Shandong University, Jinan 250100

Received Date: 26 August 2002

Fund Project: This research is supported by NNSFC No: 20273041.

The coordination structure of aluminum in magnesium aluminum hydroxide was studiedby ²⁷Al NMR. The result showed that tetrahedral aluminum (Al^Ⅳ) existed in magnesiumaluminum hydroxide, and the contents of Al^Ⅳ increased with the increase of the ratio of Al/Mg andwith the peptizing temperature. Al^Ⅳ originated from the so-called Al₁₃ polymer with the structureof one Al tetrahedron surrounded by twelve Al octahedrons.
- Coordination structure,
- magnesium aluminum hydroxide,
- ²⁷Al NMR
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