The closo-[Sn9Ir(cod)]3- and [Pb9Ir(cod)]3- Zintl Ions: Isostructural IrI Derivatives of the nido-E94- Anions (E = Sn, Pb)

被引：42

作者：

Downing, Domonique O. ^{[1
]}

Zavalij, Peter ^{[1
]}

Eichhorn, Bryan W. ^{[1
]}

机构：

[1] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2010年 / 06期

基金：

美国国家科学基金会;

关键词：

Zintl anions; Cluster compounds; Structure elucidation; Charge transfer; Solid-state structures; FORMALLY ZWITTERIONIC RHODIUM(I); IRIDIUM(I) DERIVATIVES; CLUSTER; COMPLEXES; CHEMISTRY; ISOMERS;

D O I：

10.1002/ejic.200900983

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The closo-[E9Ir(cod)](3-) ions where E = Sn (1), Pb (2) (cod = 1,5-cyclooctadiene) were prepared from precursors [Ir(cod)Cl](2), K4E9, and 2,2,2-cryptand in ethylenediamine/toluene solvent mixtures. The [K(2,2,2-crypt)](+) salts were isolated and characterized by NMR spectroscopy and single-crystal X-ray diffraction. The clusters are the first known Ir-I Zintl clusters and are examples of isostructural Sn/Pb homologues. Complexes 1 and 2 have 22-electron, bicapped square-anti-prismatic structures and pseudo-C-4v point symmetry with the Ir(cod) vertices attached in an eta(4) fashion. The structural studies and H-1 and C-13 NMR spectroscopic studies showed significant charge transfer to the COD ligands.

引用

页码：890 / 894

页数：5

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