𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Thallium(I) complexes with some macrocyclic “crown” polyethers

✍ Scribed by M.E. Farago

Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
241 KB
Volume
23
Category
Article
ISSN
0020-1693

No coin nor oath required. For personal study only.

✦ Synopsis

Complexes of some thallium(I) salts with macrocyclic crown ethers have been prepared. Complexes of benzo-15crown-5 (I) and 4,5dibromo-benzo 15-crown-5, (II), appear to have a sandwich structure where two molecules of the ligand are co-ordinated to one thallium ion. Complexes of I8-crown-6, (IV) have a I:1 crown to metal ratio.

📜 SIMILAR VOLUMES

Alkali earth metal complexes with some m
Alkali earth metal complexes with some macrocyclic “crown” polyethers
✍ D.G. Parsons; J.N. Wingfield 📂 Article 📅 1976 🏛 Elsevier Science 🌐 English ⚖ 459 KB

## Alkaline earth metal perchlorates and thiocyanates react with cyclic polyethers to yield crystalline solids. The products are found to be influenced by cation radius and charge, and also by the reaction solvent and anion. Competition reactions between potassium and calcium are shown to be solvent

Crown type macrocycles from a polyether
Crown type macrocycles from a polyether with 4-pyrone subunit
✍ Werner Löwe; Stefanie A. Brätter; Joachim Buddrus 📂 Article 📅 2001 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 37 KB

## Abstract Our aim to enlarge the ring of the crown type compound 1, using the two component dilution principle, leads to hitherto unknown macrocycles **6** and **7**.

Enrichment of Potassium Isotopes with Ma
Enrichment of Potassium Isotopes with Macrocyclic Polyether Potassium Complexes
✍ Beat Schmidhaltcr; Ernst Schumacher 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 German ⚖ 374 KB

## Abstract Enrichment of the potassium isotopes is achieved by means of the chemical exchange reaction Where L represents a macrocyclic polyether. Dicyclohexyl‐18‐crown‐6 ((__cis__‐__syn__‐__cis__)‐isomer) was investigated. The single stage‐separation factor a=1+ε was determined according to the