[Ho5(H2O)16(OH)2AS6W64O220]25-, a large novel polyoxoanion from trivacant Keggin fragments

被引：23

作者：

Drewes, D ^{[1
]}

Piepenbrink, M ^{[1
]}

Krebs, B ^{[1
]}

机构：

[1] Univ Munster, Inst Anorgan & Analyt Chem, D-48149 Munster, Germany

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2006年 / 632卷 / 04期

关键词：

heteropolytungstates; holmium; Keggin structure; polyoxometalates; tungsten;

D O I：

10.1002/zaac.200500482

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The novel polyoxotungstate Na7K18[Ho-5(H2O)(16)(-)(OH)(2)As6W64O220] center dot 56 H2O (1) was synthesized in aqueous solution and characterized by X-ray structure analysis, elemental analysis and IR spectroscopy. The anion in I represents one of the largest polyoxoanions known yet and exhibits an unusual arrangement of six Keggin units. It consists of six trivacant lacunary alpha-beta-(AsW9O33)(9-) Keggin fragments which are connected by a bridging [Ho5W10(H2O)(16)(OH)(2)O-22](29+) unit. The five Ho-III atoms are coordinated by eight oxygen atoms, forming a square-antiprism.

引用

页码：534 / 536

页数：3

共 50 条

[1]

[Anonymous], 2005, ANGEW CHEM, V117, P3843

[2]

[Anonymous], 1997, SHELXL 97 SHELXS 97

[3]

[Anonymous], 1998, CHEM REV, DOI DOI 10.1021/CR960395Y

[4] New strategies for the generation of large heteropolymetalate clusters: The beta-B-SbW9 fragment as a multifunctional unit [J].

Bosing, M ;

Loose, I ;

Pohlmann, H ;

Krebs, B .

CHEMISTRY-A EUROPEAN JOURNAL, 1997, 3 (08) :1232-1237

[5] BOND-VALENCE PARAMETERS FOR SOLIDS [J].

BRESE, NE ;

OKEEFFE, M .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1991, 47 :192-197

[6] Formation of large clusters in the reaction of lanthanide cations with heptamolybdate [J].

Burgemeister, K ;

Drewes, D ;

Limanski, EM ;

Küper, I ;

Krebs, B .

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2004, (13) :2690-2694

[7]

Cronin L, 2002, ANGEW CHEM INT EDIT, V41, P2805, DOI 10.1002/1521-3773(20020802)41:15<2805::AID-ANIE2805>3.0.CO

[8]

2-E

[9]

Cronin L., 2002, ANGEW CHEM, V114, P2929

[10] Synthesis and structure of a novel type of polyoxomolybdate lanthanide complex:: [(Ln(H2O)6)2(TeMo6O24)] (Ln = Ho, Yb) [J].

Drewes, D ;

Krebs, B .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 2005, 631 (13-14) :2591-2594

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