Rotational studies of adducts between carboxylic acids and tertiary alcohols: Formic acid - tert-butyl alcohol.
Hydrogen bond
Molecular complexes
Rotational spectroscopy
Ubbelohde effect
Journal
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
ISSN: 1873-3557
Titre abrégé: Spectrochim Acta A Mol Biomol Spectrosc
Pays: England
ID NLM: 9602533
Informations de publication
Date de publication:
05 Jun 2021
05 Jun 2021
Historique:
received:
31
12
2020
revised:
02
02
2021
accepted:
09
02
2021
pubmed:
21
3
2021
medline:
21
3
2021
entrez:
20
3
2021
Statut:
ppublish
Résumé
The rotational spectra of the parent and eight isotopologues of the 1:1 complex formic acid - tert-butyl alcohol (FA-TBA) have been measured by pulsed jet Fourier transform microwave spectroscopy. The spectra have been observed in the supersonic expansion of a mixture of FA and TBA in Helium, differently with respect to the mixtures of FA with primary and secondary alcohols, which undergo the esterification reaction upon supersonic expansion. In the complex, the two subunits are linked to each other by two different O-H···O hydrogen bonds (HB) in which FA and TBA are alternate their roles of bond acceptor and donor. Upon H → D substitution of the corresponding O-H···O HB, a small Ubbelohde effect is observed.
Identifiants
pubmed: 33743306
pii: S1386-1425(21)00197-9
doi: 10.1016/j.saa.2021.119621
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
119621Informations de copyright
Copyright © 2021 Elsevier B.V. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Competing Interest The authors declared that there is no conflict of interest.