𝔖 Bobbio Scriptorium
✦   LIBER   ✦

5,11,17,23-Tetra-tert-butyl-25,26,27,28-tetra­pentoxycalix[4]arene

✍ Scribed by Brusko, Vasiliy ;Böhmer, Volker ;Bolte, Michael

Publisher
International Union of Crystallography
Year
2005
Tongue
English
Weight
225 KB
Volume
61
Category
Article
ISSN
1600-5368

No coin nor oath required. For personal study only.

✦ Synopsis

The molecule of the title compound, C 64 H 96 O 4 , adopts the typical pinched-cone conformation. The dihedral angles between the reference plane (defined by the C atoms of the methylene bridges) and the benzene rings are 86.88 (4), 136.64 (5), 87.22 (4) and 133.99 (4) .

📜 SIMILAR VOLUMES

5,11,17,23-Tetra-tert-butyl-25,26,27,28-
5,11,17,23-Tetra-tert-butyl-25,26,27,28-tetramethoxycalix[4]arene tetrahydrofuran solvate
✍ Fischer, Conrad ;Gruber, Tobias ;Seichter, Wilhelm ;Weber, Edwin 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 802 KB

The asymmetric unit of the title compound, C 44 H 64 O 4 ÁC 4 H 8 O, comprises two crystallographically independent calixarene molecules, which display a partial cone conformation, and two tetrahydrofuran molecules. The crystal packing is stabilized by C-HÁ Á Á contacts involving the methoxy groups,

26,28-Diall­yloxy-5,11,17,23-tetra-tert-
26,28-Diall­yloxy-5,11,17,23-tetra-tert-butyl-25,27-bis­(cyano­meth­oxy)calix[4]arene in the partial cone conformation
✍ Dordea, Crenguta ;Böhmer, Volker ;Bolte, Michael 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 262 KB

The title compound, C 54 H 66 N 2 O 4 , crystallizes with two molecules in the asymmetric unit. Both adopt the typical partial cone conformation which was also found for 26,28-diallyloxy-5,17-di-tert-butyl-25,27-bis(cyanomethoxy)-11,23-dinitrocalix[4]arene [Danila, Bo ¨hmer & Bolte (2005). Org. Biom

Redetermination of 5,11,17,23-tetra-tert
Redetermination of 5,11,17,23-tetra-tert-butyl-25,27-di­(ethoxy­carbonyl­methoxy)-26,28-di­hydroxy­calix­[4]­arene chloro­form disolvate at low temperature
✍ Bolte, Michael ;Danila, Crenguta ;Böhmer, Volker 📂 Article 📅 2003 🏛 International Union of Crystallography 🌐 English ⚖ 213 KB

Single-crystal X-ray study T = 173 K Mean '(C±C) = 0.007 A Ê Disorder in solvent or counterion R factor = 0.094 wR factor = 0.297 Data-to-parameter ratio = 15.9 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.