Structural characterization of vanillin derivatives with long alkyl chain and investigation of their electrochemical and thermal properties
Abstract
This manuscript describes the synthesis, characterization and thermal properties of the two vanillin derivatives containing a long alkyl chain. Two vanillin derivatives 4-(heptyloxy)-3-methoxybenzaldehyde (L1) and 4-(decyloxy)-3-methoxybenzaldehyde (L2) were obtained from the reaction of the vanillin with 1-bromoheptane or 1-bromodecane in DMF reaction media, respectively. The vanillin derivatives L1 and L2 have been characterized by the 1H-13C NMR, FTIR and mass spectral techniques. Single crystals suitable for X-ray diffraction studies were grown by recrystallization of a chloroform solutions of the compounds. There are phenyl-phenyl stacking (edge to edge) interactions within the structures. Thermal analysis data (DSC) revealed that compounds do not show any liquid crystalline character. The electrochemical behaviours of the organic compounds L1 and L2 were investigated and all redox processes in the 100-1000 mV/s scan rates are irreversible.
- Publication:
-
Journal of Molecular Structure
- Pub Date:
- January 2020
- DOI:
- 10.1016/j.molstruc.2019.127018
- Bibcode:
- 2020JMoSt119927018T
- Keywords:
-
- Vanillin;
- X-ray structure;
- Electrochemistry;
- DSC;
- Emission