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Gas phase, solution, and solid state alkali ion binding by the [NbE8](3-) (E = As, Sb) complexes: synthesis, structure, and spectroscopy.
MedLine Citation:
PMID:  15206864     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Toluene solutions of Nb(toluene)(2) react with ethylenediamine solutions of K(3)E(7) (E = As, Sb) in the presence of 2,2,2-crypt to give [NbAs(8)](3-) (2) and [NbSb(8)](3-) (3) ions, respectively, in low yields. The (133)Cs NMR spectroscopy, ESIMS results (negative ion mode), and single-crystal X-ray structures of the ions are reported. The complexes have S(8)-like E(8) rings with Nb atoms in the center. The 1:1 complex of 2 with Cs+ was observed in solution and also in the gas phase as the oxidized ion [CsNbAs(8)](1-). The anion 2 selectively binds to Cs(+) in solution even in the presence of excess Na(+). Other gas-phase ions formed include [Cs(2)(NbAs(8))](1-), [KCs(NbAs(8))](1-), [KCs(NbAs(8))(2)](1-), [KNbAs(8)](1-), and [K(2)NbAs(8)](1-).
Authors:
Banu Kesanli; James Fettinger; Brian Scott; Bryan Eichhorn
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Inorganic chemistry     Volume:  43     ISSN:  0020-1669     ISO Abbreviation:  Inorg Chem     Publication Date:  2004 Jun 
Date Detail:
Created Date:  2004-06-21     Completed Date:  2004-08-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0366543     Medline TA:  Inorg Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3840-6     Citation Subset:  -    
Affiliation:
Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742 , USA.
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