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5,11,17,23,29,35-Hexa-tert-butyl-37,38,39,40,41,42-hexa­hydroxy­calix[6]arene dichloro­methane disolvate

✍ Scribed by Felsmann, Marika ;Schwarzer, Anke ;Weber, Edwin

Book ID
104486130
Publisher
International Union of Crystallography
Year
2006
Tongue
English
Weight
421 KB
Volume
62
Category
Article
ISSN
1600-5368

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✦ Synopsis

Á2CH 2 Cl 2 , from a methanol-dichloromethane solution yields a 1:2 inclusion compound with dichloromethane. The host-guest compound crystallizes with one host and two guest molecules in the asymmetric unit. The molecular geometry is stabilized by intramolecular O-HÁ Á ÁO hydrogen bonds, whereas the packing structure is dominated by van der Waals forces.

📜 SIMILAR VOLUMES

Rotation vs. immobilization controversy
Rotation vs. immobilization controversy in calix[6]arenes. Is 5,11,17,23,29,35-Hexa-tert-butyl-37,39,41-trimethoxy-38,40,42-tris(tert-butoxycarbonylmethoxy)calix[6]arene really immobilized?
✍ Otsuka Hideyuki; Araki Koji; Sakaki Toru; Nakashima Kazuaki; Shinkai Seiji 📂 Article 📅 1993 🏛 Elsevier Science 🌐 French ⚖ 279 KB

1H NMR spectral examinations revealed that the title compound, which was previously proposed to be conformationally-frozen, is not truly immobilized but the rate of the conformational change is just slower than that of the NMR time-scale.