Structural studies of di-Schiff bases with a middle flexible group, relationship between the structure and liquid crystal properties

P. Cerrada, M. Marcos, J. L. Serrano, C. Jaime

Research output: Contribution to journalArticleResearchpeer-review

4 Citations (Scopus)

Abstract

The molecular geometry of four series of di-Schiff bases with a middle flexible group: N,N′-di-(4-n-alkoxybenzilidene)-1,2-diaminoethane (I), N,N′-di-(4-n-alkoxy-α-methylbenzilidene)-1,2-diaminoethane (II), N,N′-di-(4-n-alkoxy-2-hydroxybenzilidene)-1,2-diaminoethane (III), N,N′-di-(4-n-alkoxy-2-hydroxy-α-methylbenzilidene)-1,2-diaminoethane (IV), was studied by spectroscopic (1H NMR and UV), empirical (MM2) and semiempirical (MNDO) methods. The compounds derived from aldehyde were liquid crystals, whereas the compounds derived from ketone were not. The relation between structure and mesogenic properties was studied. © 1989.
Original languageEnglish
Pages (from-to)147-159
JournalJ. Mol. Struct.
Volume193
Issue numberC
DOIs
Publication statusPublished - 1 Jan 1989

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