Synthesis, characterization, and solid-state structural determination of tris(2,4-dimethylpentadienyl)neodymium, Nd(2,4-C7H11)3

1982 ◽  
Vol 1 (5) ◽  
pp. 708-713 ◽  
Author(s):  
Richard D. Ernst ◽  
Teddy H. Cymbaluk
Keyword(s):  
Solid State ◽  
Structural Determination

scholarly journals Cs[Tf2N]: a second polymorph with a layered structure

2018 ◽  
Vol 74 (4) ◽  
pp. 551-554
Author(s):  
Jared T. Stritzinger ◽  
Janelle E. Droessler ◽  
Brian L. Scott ◽  
George S. Goff
Keyword(s):  
Ionic Liquid ◽  
Solid State ◽  
Opposite Direction ◽  
Layered Structure ◽  
Layer Structure ◽  
Structural Determination ◽  
Polar Surface ◽  
Trifluoromethyl Groups

The structural determination of the ionic liquid, caesium bis[(trifluoromethyl)sulfonyl]imide or poly[[μ4-bis[(trifluoromethyl)sulfonyl]imido]caesium(I)], Cs[N(SO2CF3)2] or Cs[Tf2N], reveals a second polymorph that also crystallizes in a layer structure possessing monoclinic P21/c symmetry at 120 K instead of C2/c for the known polymorph [Xue et al. (2002). Solid State Sci. 4, 1535–1545]. The caesium ions in the cationic layers are coordinated by the sulfonyl groups of the bistriflimide molecules from anion layers while the trifluoromethyl groups are oriented in the opposite direction, forming a non-polar surface separating the layers. The layer direction is (100).

scholarly journals Graphitic nitrogen in carbon catalysts important for the reduction of nitrite revealed by 15N NMR spectroscopy at natural abundance

2021 ◽  
Author(s):  
Zheng Chen ◽  
Aleksander Jaworski ◽  
Jianhong Chen ◽  
Tetyana Budnyak ◽  
Ireneusz Szewczyk ◽  
...  
Keyword(s):  
Solid State ◽  
15N Nmr ◽  
Structural Determination ◽  
Functional Material ◽  
Nitrogen Doped ◽  
Metal Free ◽  
15N Nmr Spectroscopy ◽  
Carbon Catalysts ◽  
Nitrogen Doped Carbon

Metal-free nitrogen-doped carbon is considered as a green functional material, but the structural determination of the atomic positions of nitrogen remains challenging. We recently demonstrated that directly-excited solid state 15N...

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