Experimental and Theoretical Insights into Molecular and Solid-State Properties of Isomeric Bis(salicylaldehydes)

Autor: Michał Barbasiewicz, Mateusz Urban, Sergiusz Luliński, Krzysztof Durka, Krzysztof Woźniak, Krzysztof Błocki, Bartosz Górski
Rok vydání: 2019
Předmět:
Zdroj: The Journal of Physical Chemistry A. 123:8674-8689
ISSN: 1520-5215
1089-5639
DOI: 10.1021/acs.jpca.9b07360
Popis: A series of five bis(salicylaldehydes), including four isomeric compounds based on a benzene scaffold and a closely related naphthalene derivative, were investigated in order to elucidate the impact of resonance effects and intramolecular hydrogen bonds (HBs) on the macroscopic properties of these systems. Density functional theory (DFT) computations revealed important differences between isomers on the molecular level, which was reflected in different charge distributions, aromatic C-C bond orders, and aromaticity characters. The consequences of these features were evidenced by the UV-vis absorption spectra: for 1,3-diformyl-4,6-dihydroxybenzene (
Databáze: OpenAIRE