title: Structure and spectroscopic characteristics of 4-tert-butylphenoxyacetylhydrazones of arylaldehydes.
abstract: By reaction of 4-tert-butylphenoxyacetylhydrazide with aromatic aldehydes and acetone a new series of 4-tert-butylphenoxyacetylhydrazones was synthesized. The structural peculiarities of the investigated molecules have been determined by means of X-ray analysis and IR spectroscopy. The diagnostically important IR spectral criteria required for the conformational analysis of acethylhydrazones have been considered. It was established that the 4-tert-butylphenoxyacetylhydrazide in condensed phase exists only as a ZN-C(O)-conformer. Its derivatives exist as EN-C(O) and ZN-C(O)-forms. As a rule, the prevalence of ZN-C(O)-form has been observed in CCl4 solutions. The structure of investigated compounds is also determined by a system of inter- and intramolecular hydrogen bonds. The energy of hydrogen bonds was estimated.
authors.affiliation: A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center of Russian Academy of Sciences, Arbuzov str. 8, 420088 Kazan, Russia. spodyachev@iopc.knc.ru
authors.forename: S N
authors.initials: SN
authors.lastname: Podyachev
authors.forename: I A
authors.initials: IA
authors.lastname: Litvinov
authors.forename: R R
authors.initials: RR
authors.lastname: Shagidullin
authors.forename: B I
authors.initials: BI
authors.lastname: Buzykin
authors.forename: I
authors.initials: I
authors.lastname: Bauer
authors.forename: D V
authors.initials: DV
authors.lastname: Osyanina
authors.forename: L V
authors.initials: LV
authors.lastname: Avvakumova
authors.forename: S N
authors.initials: SN
authors.lastname: Sudakova
authors.forename: W D
authors.initials: WD
authors.lastname: Habicher
authors.forename: A I
authors.initials: AI
authors.lastname: Konovalov
mesh_terms: D001547:Benzaldehydes / Q000138:chemical synthesis / Q000737:chemistry; D006835:Hydrazones / Q000138:chemical synthesis* / Q000737:chemistry*; D006860:Hydrogen Bonding; D015394:Molecular Structure; D013055:Spectrophotometry, Infrared
chemical_list: D001547:Benzaldehydes; D006835:Hydrazones