The synthesis and structure of titanosilicate UND-1 with a chemical composition of Na2.7K5.3Ti4Si12O36 4H2O are reported. The UND-1 was synthesized in a system using solid titanium oxides as a Ti source. The structure consists of six-membered rings of SiO4 tetrahedra and isolated TiO6 octahedra by which, through corner sharing, form an open structure containing channels (ca. 4 Å in diameter) running along the [100] direction.
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Liu et al. (1997) studied this question.
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