Deuteron and proton NMR study of D₂, p-dichlorobenzene and 1,3,5-trichlorobenzene in bimesogenic liquid crystals with two nematic phases

Burnell, E. E.; Ahmed, Z.; Welch, C.; Mehl, G. H.; Dong, R. Y.

Abstract

The solutes dideuterium, 1,3,5-trichlorobenzene and p-dichlorobenzene (pdcb) are co-dissolved in a 61/39 wt% mixture of CBC9CB/5CB, a bimesogenic liquid crystal with two nematic phases. NMR spectra are collected for each solute. The local electric field gradient (FZZ) is obtained from the dideuterium spectrum. A double Maier-Saupe potential (MSMS) is used to rationalize the order parameters of pdcb. The liquid-crystal fields G₁ and G₂ are taken to be due to size and shape interactions and interactions between the solute molecular quadrupole and the mean FZZ of the medium. The FZZ’s obtained from D₂ and G₂ (from pdcb) are compared and discussed.

Citation

Burnell, E. E., Ahmed, Z., Welch, C., Mehl, G. H., & Dong, R. Y. (2016). Deuteron and proton NMR study of D₂, p-dichlorobenzene and 1,3,5-trichlorobenzene in bimesogenic liquid crystals with two nematic phases. Chemical Physics Letters, 659, 48-54. https://doi.org/10.1016/j.cplett.2016.07.005

• Journal Article Type: Article
• Acceptance Date: Jul 1, 2016
• Publication Date: Aug 16, 2016
• Deposit Date: Jul 5, 2016
• Publicly Available Date: Aug 16, 2016
• Journal: Chemical physics letters
• Print ISSN: 0009-2614
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 659
• Pages: 48-54
• DOI: https://doi.org/10.1016/j.cplett.2016.07.005
• Keywords: Dideuterium, 1,3,5-trichlorobenzene, p-dichlorobenzene
• Public URL: https://hull-repository.worktribe.com/output/440631
• Publisher URL: http://www.sciencedirect.com/science/article/pii/S0009261416304857
• Additional Information: Authors' accepted manuscript of article published in: Chemical physics letters, 2016, v.659.
• Contract Date: Jul 5, 2016