Weller M T, Brenchley M E, Apperley D C, Davies N A
Department of Chemistry, University of Southampton, Highfield, UK.
Solid State Nucl Magn Reson. 1994 Apr;3(2):103-6. doi: 10.1016/0926-2040(94)90028-0.
A range of aluminate sodalites of general formula M8(AlO2)12.X2, where M and X are a divalent cation and anion, respectively, has been synthesised. The structures of these materials, which contain a single aluminum environment, have been refined from powder X-ray or neutron diffraction data and the compounds further characterised using 27Al magic-angle spinning nuclear magnetic resonance (MAS NMR). Correlations between (i) the Al-O-Al bond angles and the 27Al chemical shift and (ii) the quadrupolar coupling constant and the distorted AlO4 tetrahedral geometry have been determined.
已合成了一系列通式为M8(AlO2)12.X2的铝酸方钠石，其中M和X分别为二价阳离子和阴离子。这些材料的结构包含单一的铝环境，已根据粉末X射线或中子衍射数据进行了精修，并使用27Al魔角旋转核磁共振（MAS NMR）对这些化合物进行了进一步表征。已确定了（i）Al-O-Al键角与27Al化学位移之间以及（ii）四极耦合常数与扭曲的AlO4四面体几何结构之间的相关性。
