𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A tribenzo modified 1,3-calix[4]-bis-crown-6: A highly selective receptor for cesium

✍ Scribed by Zouhair Asfari; Véronique Lamare; Jean-François Dozol; Jacques Vicens


Publisher
Elsevier Science
Year
1999
Tongue
French
Weight
189 KB
Volume
40
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis


It is reported the synthesis of calix[4]-bis-(tribenzo)crown-6 I consisting of a calix[4]arene fixed in the 1,3-alternate conformation by the 1,3-and 2,4-bridges made of two modified polyether chains in which the three central ethylene links have been replaced by three 1,2-phenylenes. Ligand 1 complex cesium cation and not sodium one.


📜 SIMILAR VOLUMES


New proton-ionizable, cesium-selective c
✍ Vladimir S. Talanov; Galina G. Talanova; Richard A. Bartsch 📂 Article 📅 2000 🏛 Elsevier Science 🌐 French ⚖ 68 KB

The first 1,3-alternate calix[4]arene-bis(crown-6-ethers) with a proton-ionizable group located in front of one crown ether cavity are synthesized. Compared with an analog that has no proton-ionizable group, the two new ligands possess markedly higher Cs + extraction efficiency.

Selective Detection of Cesium by a Water
✍ Vincent Souchon; Isabelle Leray; Bernard Valeur 📂 Article 📅 2007 🏛 John Wiley and Sons ⚖ 11 KB 👁 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

ChemInform Abstract: New Proton-Ionizabl
✍ Vladimir S. Talanov; Galina G. Talanova; Richard A. Bartsch 📂 Article 📅 2001 🏛 John Wiley and Sons ⚖ 28 KB 👁 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

New amino-functionalized 1,3-alternate c
✍ Maryna G. Gorbunova; Peter V. Bonnesen; Nancy L. Engle; Eve Bazelaire; Lætitia H 📂 Article 📅 2003 🏛 Elsevier Science 🌐 French ⚖ 210 KB

Four calix[4] arene benzo-crown-6 ethers functionalized with primary amine groups in various positions have been synthesized. The cesium extraction behavior under alkaline and acidic conditions has been measured for these compounds and compared with that of non-amine containing analogs. Extraction

Synthesis of 1,3-alternate calix[4]-cycl
✍ Buncha Pulpoka; Matinee Jamkratoke; Thawatchai Tuntulani; Vithaya Ruangpornvisut 📂 Article 📅 2000 🏛 Elsevier Science 🌐 French ⚖ 74 KB

1,3-Alternate calix[4]-cyclen-benzo-crown-6 incorporating a cyclen subunit on one side and a benzocrown-6 on the other side of the calix[4]arene framework has been synthesized. Preliminary complexation studies of this macropolycycle with cesium and zinc picrate salts have been carried out by means o