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Extremely Short Non-Bonding OxygenOxygen Distances: The Crystal Structures of NbBO4, NaNb3O8, and NaTa3O8

✍ Scribed by Prof. Dr. Klaus-Jürgen Range; Dipl.-Chem. Manfred Wildenauer; Prof. Dr. Anton M. Heyns

Publisher
John Wiley and Sons
Year
1988
Tongue
English
Weight
429 KB
Volume
27
Category
Article
ISSN
0044-8249

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✦ Synopsis

The separate AB systems ( J A N = 12.5-13.5 Hz) were identified by a series of double irradiation experiments.

[ 161 I f it is assumed that there are no more than fhree contiguous aromatic rings (i.e. there is no more than one fused cyclohexa-1.4-diene unit insulating the four aromatic residues) in the hydrocarbon resulting from complete dehydration of 5 , then 7 is the only constitution which can give rise to the observed 'H-NMR spectroscopic data. If Azanthracene,

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