Article

Structural assignment of monothiocarbonohydrazones by 1H NMR spectroscopy

  1. G. Rajendran,
  2. Sampat R. Jain*

Article first published online: 14 APR 2005

DOI: 10.1002/mrc.1270220103

Issue

Organic Magnetic Resonance

Organic Magnetic Resonance

Volume 22, Issue 1, pages 6–10, January 1984

Additional Information

How to Cite

Rajendran, G. and Jain, S. R. (1984), Structural assignment of monothiocarbonohydrazones by 1H NMR spectroscopy. Org. Magn. Reson., 22: 6–10. doi: 10.1002/mrc.1270220103

Author Information

  1. Propellant Chemistry Laboratory, Department of Aerospace Engineering, Indian Institute of Science, Bangalore-560 012, India

*Propellant Chemistry Laboratory, Department of Aerospace Engineering, Indian Institute of Science, Bangalore-560 012, India

Publication History

  1. Issue published online: 14 APR 2005
  2. Article first published online: 14 APR 2005
  3. Manuscript Accepted: 5 JUN 1983
  4. Manuscript Received: 10 DEC 1982

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Abstract

Analysis of the 1H NMR spectra of several monothiocarbonohydrazones, some of them synthesized for the first time, shows that they exist as two structural isomers. Whereas, in general, the derivatives of aromatic aldehydes conform to a linear structure, the aliphatic carbonyl derivatives conform to heterocyclic or linear structures, depending on the size of the substituent groups. This dual behaviour is explained in terms of extended conjugation and steric hindrance.

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