New materials based on tubular nanodimensional structures 1. Synthesis,structural studies and determination of interproton distances in solutions of functionalized thiacalix[4]arenes according to NMR spectroscopic data (NOESY) |
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| Authors: | I I Stoikov D Sh Ibragimova I S Antipin A I Konovalov T A Gadiev B I Khairutdinov F Kh Karataeva V V Klochkov |
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| Institution: | (1) Kazan State University, 18 ul. Kremlevskaya, 420008 Kazan, Russian Federation |
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| Abstract: | New derivatives of p-tert-butylthiacalix4]arene were synthesized. The conformation of the macrocycles and interproton distances in the synthesized thiacalix4]arenes in solutions were determined by NMR spectroscopy. p-tert-Butylthiacalix4]arene distally disubstituted at the lower rim adopts the cone conformation, and the tetrasubstituted products are formed in the 1,3-alternate conformation.__________Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 2172–2178, October, 2004. |
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| Keywords: | thiacalix[4]arene alkylation NOESY NMR spectroscopy nanostructures stereoisomers |
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