[Ho 5 (H 2 O) 16 (OH) 2 As 6 W 64 O 220 ] 25− , ein großes neuartiges Polyoxoanion aus trivakanten Keggin‐Fragmenten | Zendy

Drewes Daniel | Zendy; Piepenbrink Markus | Zendy; Krebs Bernt | Zendy

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[Ho 5 (H 2 O) 16 (OH) 2 As 6 W 64 O 220 ] 25− , ein großes neuartiges Polyoxoanion aus trivakanten Keggin‐Fragmenten

Author(s) -

Drewes Daniel,

Piepenbrink Markus,

Krebs Bernt

Publication year - 2006

Publication title -

zeitschrift für anorganische und allgemeine chemie

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.354

H-Index - 66

eISSN - 1521-3749

pISSN - 0044-2313

DOI - 10.1002/zaac.200500482

Subject(s) - lacunary function , crystallography , chemistry , square antiprism , aqueous solution , antiferromagnetism , keggin structure , spectroscopy , oxygen atom , stereochemistry , ion , physics , molecule , mathematics , organic chemistry , pure mathematics , condensed matter physics , quantum mechanics

[Ho 5 (H 2 O) 16 (OH) 2 As 6 W 64 O 220 ] 25− , a Large Novel Polyoxoanion from Trivacant Keggin Fragments The novel polyoxotungstate Na 7 K 18 [Ho 5 (H 2 O) 16 (OH) 2 As 6 W 64 O 220 ] · 56 H 2 O ( 1 ) was synthesized in aqueous solution and characterized by X‐ray structure analysis, elemental analysis and IR spectroscopy. The anion in 1 represents one of the largest polyoxoanions known yet and exhibits an unusual arrangement of six Keggin units. It consists of six trivacant lacunary α‐B‐(AsW 9 O 33 ) 9− Keggin fragments which are connected by a bridging [Ho 5 W 10 (H 2 O) 16 (OH) 2 O 22 ] 29+ unit. The five Ho III atoms are coordinated by eight oxygen atoms, forming a square‐antiprism.

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