Synthesis of cis - p -dioxano-12-crown-4 and X-ray crystallography of the (1:1) complex with lithium thiocyanate
1998; NRC Research Press; Volume: 76; Issue: 2 Linguagem: Inglês
10.1139/v97-220
ISSN1480-3291
AutoresAlex B. Driega, G. W. Buchanan, Corinne Bensimon,
Tópico(s)Molecular Sensors and Ion Detection
ResumoThe synthesis of a novel 12-crown-4 analogue (cis-p-dioxano-12-crown-4 or cis-3,6,9,13,15- pentaoxabicyclo[9.3.1]pentadecane) is described. The (1:1) LiNCS complex crystallizes in the monoclinic Cc space group; a = 8.4973(2) Å, b = 18.0659(4) Å, c = 8.9168(1) Å, and β = 90.713(1)° with Z = 4. The crown adopts C 1 symmetry to which the Li + is coordinated in a rectangular pyramid with an apical - NCS.Key words: crown ethers, structure, complexation.
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