Inclusion of Alkanes with a Crystal Consisting of Exocavity Complexes of p‑tert-Butylthiacalix[4]arene with Diethylamine: Extension of Guest Scope by Changing the Structure of Inclusion Crystals

A crystal of the exocavity complex of p-tert-butylthiacalix­[4]­arene (2) with diethylamine (2·Et2NH) includes alkanes that cannot be included in a crystal of compound 2 alone and produces two types of inclusion crystals. X-ray crystallographic analysis of inclusion crystals 2·Et2NH·(hexane)0.5 and...

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Bibliographic Details
Published in:Crystal growth & design 2019-12, Vol.19 (12), p.7022-7029
Main Authors: Morohashi, Naoya, Miyoshi, Ikuko, Sasaki, Takuro, Nakaji, Yosuke, Nakayama, Hiroko, Hattori, Tetsutaro
Format: Article
Language:English
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Summary:A crystal of the exocavity complex of p-tert-butylthiacalix­[4]­arene (2) with diethylamine (2·Et2NH) includes alkanes that cannot be included in a crystal of compound 2 alone and produces two types of inclusion crystals. X-ray crystallographic analysis of inclusion crystals 2·Et2NH·(hexane)0.5 and 2·(Et2NH)1.5·(heptane)0.5·H2O, which were chosen as representatives of the two types, reveals that hexane and heptane are captured in a space surrounded by four self-inclusion dimers of the exocavity complex and in a capsule constructed by two exocavity complexes, respectively. The crystal of 2·Et2NH selectively includes hexane, heptane, and octane from mixtures with their branched isomers.
ISSN:1528-7483
1528-7505
DOI:10.1021/acs.cgd.9b00837