Tetraalkylated 2,8,14,20-tetrathiacalix[4]arenes: Novel infinite channels in the solid state

Tetrahedron Letters

Volumn 39, Issue 48, 1998, Pages 8915-8918

  Lhoták, Pavel ^a   Himl, Michal ^a   Pakhomova, Svetlana ^a   Stibor, Ivan ^a  

^a INSTITUTE OF CHEMICAL TECHNOLOGY   (Czech Republic)

Author keywords

Alkylation; Calixarenes; X ray crystal structure

Indexed keywords

CALIXARENE; POLYCYCLIC AROMATIC HYDROCARBON;

ALKYLATION; ARTICLE; CONFORMATION; CRYSTAL STRUCTURE; ENVIRONMENTAL TEMPERATURE; NUCLEAR OVERHAUSER EFFECT; PROTON NUCLEAR MAGNETIC RESONANCE; SOLID STATE; STRUCTURE ANALYSIS; SYNTHESIS; THERMODYNAMICS;

EID: 0032569870     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(98)01950-9     Document Type: Article

References (18)

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9. 4: C, 70.22; H, 8.16; S, 14.42%. Found C, 70.03; H, 8.10; S, 14.04%.
10. 1H NMR).
11. max = 59.9°). Hydrogen atoms were found from expected geometry and were not refined. tert-Butyl groups were disordered and modeled in terms of two sets of rotationally disordered sites with equal occupancies. Absoiption was neglected. Atomic coordinates, bond lengths and angles, and thermal parameters have been deposited at the Cambridge Crystallographic Data Centre.
12. 9. We are aware of only several examples of X-ray structures of O-alkylated calix[4]arenes in the 1,3-alternate conformation: a) A. Vrielink, P.W. Codding, C. D. Gutsche, Lee-Gin Lin, J. Inclusion Phenom., 1986, 4, 199;
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