Synthesis and Structural Characterization of ... - Jacobs University

Chapter 3
Published Results
coordinated to two Ln 3+ centers in 1–10. To the best of our knowledge, polyanions 1–10
represent the largest lanthanide-containing isopolytungstates known to date.
[H 4 W 11 O 38 ] 6– {W 11 } (Fuchs 1988) 17
pH 7.5, K +
2-
WO 4
(Cronin 2004) 18
pH 2.0, TEA pH 2.2, Ln 3+
{K[H 12 W 36 O 120 ]} 11– {W 36 }
[Ln 2 (H 2 O) 10 W 22 O 72 (OH) 2 ] 8– {W 22 }
this work
Figure 3.6. Polyhedral/ball-and-stick representation of isopolytungstates containing the
{W 11 } unit. The color code is the same as in Figure 3.5: tungsten (black); potassium (gray),
oxygen (red). The abbreviation TEA represents triethanolamine.
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