Stability and Conversion of Tin Zintl Anions in Liquid Ammonia Investigated by NMR Spectroscopy

2015 ◽  
Vol 21 (41) ◽  
pp. 14539-14544 ◽  
Author(s):  
Franziska Fendt ◽  
Carina Koch ◽  
Maria Neumeier ◽  
Stefanie Gärtner ◽  
Ruth M. Gschwind ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Liquid Ammonia

Detection of the Elusive Highly Charged Zintl Ions Si44−and Sn44−in Liquid Ammonia by NMR Spectroscopy

2013 ◽  
Vol 52 (16) ◽  
pp. 4483-4486 ◽  
Author(s):  
Maria Neumeier ◽  
Franziska Fendt ◽  
Stefanie Gärtner ◽  
Carina Koch ◽  
Tobias Gärtner ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Liquid Ammonia ◽  
Zintl Ions

ChemInform Abstract: Detection of the Elusive Highly Charged Zintl Ions Si44-and Sn44-in Liquid Ammonia by NMR Spectroscopy.

ChemInform ◽  
2013 ◽  
Vol 44 (28) ◽  
pp. no-no
Author(s):  
Maria Neumeier ◽  
Franziska Fendt ◽  
Stefanie Gaertner ◽  
Carina Koch ◽  
Tobias Gaertner ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Liquid Ammonia ◽  
Zintl Ions

scholarly journals Back Cover: Detection of the Elusive Highly Charged Zintl Ions Si44−and Sn44−in Liquid Ammonia by NMR Spectroscopy (Angew. Chem. Int. Ed. 16/2013)

2013 ◽  
Vol 52 (16) ◽  
pp. 4494-4494 ◽  
Author(s):  
Maria Neumeier ◽  
Franziska Fendt ◽  
Stefanie Gärtner ◽  
Carina Koch ◽  
Tobias Gärtner ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Liquid Ammonia ◽  
Back Cover ◽  
Zintl Ions

Beiträge zur Chemie des Phosphors, 174 [1] 1,3-Diaminotriphosphan(5), H2N-PH-PH-PH-NH2, ein neues Produkt der Spaltung von weißem Phosphor mit Natrium in flüssigem Ammoniak / Contributions to the Chemistry of Phosphorus, 174 [1] 1,3-Diaminotriphosphane(5), H2N-PH-PH-PH-NH2, a Novel Product of the Cleavage of White Phosphorus with Sodium in Liquid Ammonia

1987 ◽  
Vol 42 (3) ◽  
pp. 330-334 ◽  
Author(s):  
Marianne Baudler ◽  
Doris Düster
Keyword(s):  
Nmr Spectroscopy ◽  
Liquid Ammonia ◽  
White Phosphorus

In the reaction of white phosphorus with sodium in liquid ammonia the hitherto unknown 1,3- diaminotriphosphane(5) (1) is formed besides other products. The composition and the structure of 1, which is only stable in liquid ammonia, have been elucidated by 31P NMR spectroscopy. Of the three possible diastereomers only the erythro,erythro-isomer 1a with transoid-oriented NH2 groups is present

Sulphur–nitrogen anions: 14N and 15N NMR investigations of the deprotonation of cyclic sulphur imides and sulphur–ammonia solutions

1992 ◽  
Vol 70 (3) ◽  
pp. 710-718 ◽  
Author(s):  
T. Chivers ◽  
K. J. Schmidt
Keyword(s):  
Nmr Spectroscopy ◽  
Sodium Azide ◽  
Liquid Ammonia ◽  
Molar Ratio ◽  
15N Nmr ◽  
Molar Ratios ◽  
Nmr Data ◽  
Nmr Characterization

The following systems have been investigated by 14N and (or)15N NMR spectroscopy: (a) the deprotonation of S7NH by n-BuLi, (b) solutions of S8, S7NH, 1,3- and 1,4-S6(NH)2, and K2SN2 in liquid ammonia, (c) the reaction of sodium azide with sulphur in hexamethylphosphoramide (HMPA), (d) the reactions of S7NH and S4(NH)4 with potassium amide in liquid ammonia in various molar ratios, and (e) the reaction of (NSCl)3 with potassium amide (1:6 molar ratio) in liquid ammonia. These investigations have provided an NMR characterization of the thermally unstable S7N− (δ15N ca. −324 ppm) and S2N2H− ions (δ14N + 7 and −149 ppm, 1J(14N−1H) 36 Hz, 1J(15N−H) 55 Hz, 2J(15N-15N) 2.2 Hz) in liquid ammonia, demonstrated the existence of S7N−, in addition to SSNSS−, as the major nitrogen-containing ingredient of sulphur–ammonia solutions (SAS), and confirmed the formation of the SSNSS−, but not S7N−, from the reaction of sodium azide and sulphur in HMPA. Consistent with previous chemical investigations, the NMR data show that the S7N− and S2N2H− ions are thermally unstable with respect to the formation of SSNSS− and S3N3−, respectively, in solution. Solutions of S4(NH)4/4KNH2 or (NSCl)3/6KNH2 show the same two 14N or 15N NMR resonances at ca. +97 and −108 ppm as a solution of NSN2− in liquid ammonia. Keywords: sulphur–nitrogen anions, nitrogen NMR, liquid ammonia.

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