An X-ray diffraction study of some mesoionic 2,3-diphenyltetrazoles |
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Authors: | Roman Luboradzki Wiktor Kozminski Lech Stefaniak |
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Institution: | (1) Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, Poland;(2) Institute of Organic Chemistry, Polish Academy of Sciences, Warsaw, Poland |
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Abstract: | An X-ray diffraction study is reported for four molecules of mesoionic 2,3-diphenyltetrazoles. The results confirm a dipolar mesoionic structure, aromatic character of the tetrazole ring and no conjugation between the phenyl and tetrazole rings. The geometry of the exocyclic group is discussed in detail. The molecular parameters of the compounds investigated are correlated with13C and15N nmr data. The results obtained are compared with similar structures which have already been studied. |
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