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Molecular Complexes of Crown Ethers, Part 5: Complexes of DB18C6 with Some Acceptors

✍ Scribed by Salman R. Salman; Jabor K. Jabor

Book ID
110258514
Publisher
Springer Netherlands
Year
1999
Tongue
English
Weight
79 KB
Volume
33
Category
Article
ISSN
0923-0750

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Molecular complexes of crown ethersβ€”Part
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✍ SalmanR. Salman; SabriM. Al-Marsumi πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 25 KB

The intromolecular charge transfer spectra of six crown ethers, namely 15C5, B15C5, 18C6, B18C6, DB18C6 and DC18C6 acting as donors, and iodine, acting as an acceptor, were studied in the UV-vis region in methylene chloride. The complex formation constants were computed. The results indicate that bo

Complexes of Lanthanoid Nitrates with 15
Complexes of Lanthanoid Nitrates with 15-Crown-5 and 18-Crown-6 Ethers
✍ Jean-Claude G. BΓΌnzli; Denis Wessner πŸ“‚ Article πŸ“… 1981 πŸ› John Wiley and Sons 🌐 German βš– 860 KB

Complexes between the heavier lanthanoid nitrates Ln(NO~3~)~3~ and 15‐crown‐5 (**1**) and 18‐crown‐6 (**2**) ethers were isolated and characterized. Both 1:1 and 4:3 complexes are formed with each Ln(III) ion, except in the case of Gd and **2**. The thermal transformation of the 1:1 complexes into t