Phase transition behavior of hydrogen bonded liquid crystal (6BA)2-(BPy) x as studied by 2H NMR

Synthesis of (3-(pyridin-4-yl)propyl)phosphonic acid.Synthesis of (3-(pyridin-4-yl)propyl)phosphonic acid was performed in two steps as shown in scheme S1.Synthesis of diethyl (3-(pyridine-4-yl)propylphosphonate. Lithium diisopropyl amide (LDA) (18.5 ml, 1.2 eq.) was added dropwise to a solution 4-methyl pyridine (Sigma Aldrich) (1.5 ml, 15.25 mmol, 1 eq.) in 30 ml dry THF at -30 o C under an inert atmosphere. After the reaction mixture was stirred at low temperature for 3 h, diethyl 2-bromoethyl phosphonate (2.85 ml, 15.25 mmol, 1 eq.) was added as a solution in 20 ml dry THF. The reaction mixture was allowed to reach room temperature overnight then was portioned between water and chloroform. The organic layer was separated, dried over MgSO4 and concentrated. The crude product was purified by column chromatography (SiO2, dichloromethane: methanol, 24 : 1 (v : v)). The fractions with Rf = 0.15 were separated to give 1.91 g of diethyl (3-(pyridine-4-yl)propylphosphonate (h = 0.48).

show abstract

Experimental and computational (DFT) methods: exploration of thermochromism in homophthalic acid and 4-N-alkyloxybenzoic acid comprised hydrogen bond liquid crystals

Sundaram¹,

Vijayakumar²,

Balasubramanian³

et al. 2022

Molecular Crystals and Liquid Crystals

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Phase transition behavior of hydrogen bonded liquid crystal (6BA)2-(BPy) x as studied by 2H NMR

Cited by 3 publications

References 7 publications

Investigation on two homologus series of ferroelectric hydrogen bond liquid crystals derived from camphoric acid and alkyloxy/alkyl benzoic acids

Investigation on two homologus series of ferroelectric hydrogen bond liquid crystals derived from camphoric acid and alkyloxy/alkyl benzoic acids

Hydrogen-bonded LC nanocomposites: characterisation of nanoparticle-LC interactions by solid-state NMR and FTIR spectroscopies

Experimental and computational (DFT) methods: exploration of thermochromism in homophthalic acid and 4-N-alkyloxybenzoic acid comprised hydrogen bond liquid crystals

Contact Info

Product

Resources

About