Hydrogen bonds in 1-acyl-1,2-dimethylhydrazines of fluorocarboxylic acids

Autor:	V. V. Keiko, V. A. Lopyrev, M. G. Voronkov, Nina N. Chipanina, Yu. L. Frolov, T. I. Yushmanova, E. N. Medvedeva, G. I. Sarapulova
Rok vydání:	1981
Předmět:	Hydrogen Chemistry Hydrogen bond Intermolecular force Low-barrier hydrogen bond Inorganic chemistry chemistry.chemical_element General Chemistry Hydrazide chemistry.chemical_compound Crystallography Intramolecular force Fluorine Molecule
Zdroj:	Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 30:557-560
ISSN:	1573-9171 0568-5230
DOI:	10.1007/bf00949711
Popis:	1. The molecules of 1-acetyl-, 1-trifluoroacetyl-, and 1-difluoroacetyl-1,2-dimethylhydrazines form hydrogen bonds, which remain in dilute solutions and, partly, in the gaseous state. 2. Associations in 1-acetyl-1,2-dimethylhydrazine are evidently realized with the participation both of the unshared electron pairs of the oxygen atom and of the nitrogen at position 2. 3. The introduction of fluorine atoms into the acyl fragment of the hydrazide molecule leads to the preferential formation of intermolecular hydrogen bonds of the N-H⋯N type. 4. The low probability of the formation of an intramolecular hydrogen bond of the N-H⋯ O=C type was demonstrated.
Databáze:	OpenAIRE
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