10.1021/ja027241m.s003
Mikhail Y. Redko
Mikhail Y.
Redko
Rui H. Huang
Rui H.
Huang
James E. Jackson
James E.
Jackson
James F. Harrison
James F.
Harrison
James L. Dye
James L.
Dye
Barium Azacryptand Sodide, the First Alkalide with an
Alkaline Earth Cation, Also Contains a Novel Dimer, (Na<sub>2</sub>)<sup>2-</sup>
American Chemical Society
2003
Na 2
NH
sodium anions form
Alkaline Earth Cation
MeNH
sodide
DSC
Barium Azacryptand Sodide
23 Na MAS NMR
2003-01-29 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Barium_Azacryptand_Sodide_the_First_Alkalide_with_an_Alkaline_Earth_Cation_Also_Contains_a_Novel_Dimer_Na_sub_2_sub_sup_2-_sup_/3644745
The first barium sodide, with stoichiometry Ba<sup>2+</sup>(H<sub>5</sub>Azacryptand[2.2.2]<sup>-</sup>)Na<sup>-</sup>·2MeNH<sub>2</sub>, was
synthesized by the reaction of Ba, Na, and H<sub>6</sub>Azacryptand[2.2.2] in NH<sub>3</sub>−MeNH<sub>2</sub> solution. It was
characterized by X-ray crystallography, <sup>23</sup>Na MAS NMR, hydrogen evolution, DSC, optical spectroscopy,
and magnetic susceptibility. This is the first sodide in which the sodium anions form (Na<sub>2</sub>)<sup>2-</sup> 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.