Abstract
Chemical shifts of tetrahedrally and octahedrally coordinated aluminium in various crystal and amorphous compounds have been determined by high-resolution solid-state27Al NMR. A similarity between chemical shifts of aluminium in amorphous and crystalline compounds of the same composition has been revealed. For binary compounds the chemical shifts are in a linear relationship with the electronegativity of elements bonded to aluminium-oxygen polyhedra.
Abstract
Методом ЯМР27Al высокго разрешения в твердом теле определены химические сдвиги тетраэдрически и октаэдрически координированного алюминия в кристаллических и аморфных соединениях разичных классов. Показана близость химических сдвигов алюминия в аморфных и кристаллических веществах одинакового состава. Для бинарных соединений установлена линейная связь между химическим сдвигом и электроотрицательностью элементов, связанных с алюмокислородными полиэдрами.
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Kotsarenko, N.S., Mastikhin, V.M., Mudrakovskii, I.L. et al. High-resolution solid-state27Al NMR studies of aluminium coordination in acidic catalysts. React Kinet Catal Lett 30, 375–382 (1986). https://doi.org/10.1007/BF02064316
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DOI: https://doi.org/10.1007/BF02064316