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Synthesis and Structure of a Hexaazadiphosphadiarsatricyclodecane

✍ Scribed by Prof. Dr. Otto J. Scherer; Dipl.-Chem. Walter Glässel; Doz. Dr. Gottfried Huttner; Dipl.-Chem. Albin Frank; Dipl.-Chem. Peter Friedrich


Publisher
John Wiley and Sons
Year
1976
Tongue
English
Weight
237 KB
Volume
15
Category
Article
ISSN
0044-8249

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✦ Synopsis


extensively flatten the molecular skeleton around the nitrogen atoms and that the SiNSi angle (presumably near 120") will therefore change less than the CNC angle.

  1. The 14N coupling constant of the tetrakis(trimethylsily1)hydrazine radical cation is at least 3 G smaller than that of analogous tetraalkyl derivativesf6] and equal to that of the tetraphenylhydrazine radical ati ion''^. Thus trimethylsilyl and phenyl groups lower the spin density at the nitrogen atoms to the same extent.

  2. The coupling constants of the bicyclic tetrasilylhydrazine radical cation differ considerably from those of the corresponding (nonmethylated)[61 tetraalkyl derivative, but are comparable with those of the isoelectronik tetrasilylethylene radical anion. In the latter system the larger coupling constants of the peripheral hydrogen atoms (Table : a:H2(Y' and ugH3) and the larger a,,s, value['' suggests a somewhat lower spin density in the central >C=CCe bond relative to >N-N<'@


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