Compositions

a/nm

b/nm

c/nm

β/˚

Cs2Ti5O11・1.7H2O

2.470 (3)

0.3785 (4)

1.573 (2)

123.7 (1)

Li2Ti5O11・3.6H2O

2.48

0.376

1.76

127

Na2Ti5O11・4.1H2O

2.58

0.375

1.77

125

H2Ti5O11・3.3H2O

2.53

0.375

1.76

125