Triol crystalline hosts derived from malic acid. Synthesis, inclusion formation and x-ray crystal structures of a free host and its inclusion compound with ethanol (1:1)

Edwin Weber, Annett Zaumüller, Wilhelm Seichter, Mátyás Czugler

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Four new host compounds 1-3 (a, b) derived from malic acid as different optical species and having particular lateral substituents were synthesized. Their properties in crystalline inclusion formation were studied and discussed. Crystal structures of a free host compound 1 and its ethanol inclusion complex [1·EtOH (1:1)] have been determined by X-ray analysis [1: orthorhombic, P212121, a = 9.304(3), b = 14.950(3), c = 15.712(3) Å, Dc = 1.248 Mg·m-3, Z = 4, R = 0.039 for 2474 reflexions; 1·EtOH (1:1): triclinic, P1; a = 11.945(3), b = 14.080(3), c = 16.029(4) Å, α = 106.82(2), β = 97.74(2), γ = 89.93(2)°, Dc=1.187 Mg·m3, Z = 4, R = 0.096 for 10404 data]. Spontaneous resolution occurs during crystallization in crystals of 1. An interesting H-bonding pattern develops that probably is responsible for the inclusion formation with ethanol in the associate crystal.

Original languageEnglish
Pages (from-to)351-359
Number of pages9
JournalSupramolecular Chemistry
Volume8
Issue number4
DOIs
Publication statusPublished - Jan 1 1997

ASJC Scopus subject areas

  • Chemistry(all)

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