Barium Azacryptand Sodide, the First Alkalide with an Alkaline Earth Cation, Also Contains a Novel Dimer, (Na2)2
Autor: | James E. Jackson, Mikhail Y. Redko, James L. Dye, Rui H. Huang, James F. Harrison |
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Rok vydání: | 2003 |
Předmět: | |
Zdroj: | Journal of the American Chemical Society. 125:2259-2263 |
ISSN: | 1520-5126 0002-7863 |
DOI: | 10.1021/ja027241m |
Popis: | The first barium sodide, with stoichiometry Ba(2+)(H(5)Azacryptand[2.2.2](-))Na(-).2MeNH(2), was synthesized by the reaction of Ba, Na, and H(6)Azacryptand[2.2.2] in NH(3)-MeNH(2) solution. It was characterized by X-ray crystallography, (23)Na MAS NMR, hydrogen evolution, DSC, optical spectroscopy, and magnetic susceptibility. This is the first sodide in which the sodium anions form (Na(2))(2)(-) dimers. Previous theoretical predictions were verified by a calculation of the potential energy curve for the dimer in the field of the surrounding charges, whose positions were determined from the crystal structure. |
Databáze: | OpenAIRE |
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