Complexes between the heavier lanthanoid nitrates Ln(NO~3~)~3~ and 15โcrownโ5 (**1**) and 18โcrownโ6 (**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
โฆ LIBER โฆ
Conformation-determining factors for complexes of 18-crown-6 with cations
โ Scribed by Mitsuhiro Miyazawa; Kunio Fukushima; Sumio Oe
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 565 KB
- Volume
- 195
- Category
- Article
- ISSN
- 0022-2860
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## Abstract Complexes of 18โcrownโ6 with alkaliโmetal cations (Na^+^, K^+^, and Rb^+^), urea, and the uncomplexed crown ether were studied __in vacuo__ with the molecular dynamics method. Conformational data from these calculations (simulation times in the range from 6โ15 ns) was compared with info
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