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Coprecipitation of 15-crown-5 ether complexes of lead and strontium with tungstosilicic acid

✍ Scribed by P. Rajec; V. Švec; V. Mikulaj; R. Hanzel

Publisher
Springer
Year
1998
Tongue
English
Weight
253 KB
Volume
229
Category
Article
ISSN
1588-2780

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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

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Complexes of the Lighter Lanthanoid Nitrates with 15-crown-5 and 18-crown-6 ethers: Synthesis and characterization
✍ Jean-Claude G. Bünzli; Denis Wessner 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 German ⚖ 462 KB

## Abstract Complexes of lanthanoid trinitrates Ln(NO~3~)~3~ with 15‐crown‐5 ether **1** (Ln = La, Ce, Pr, Nd, Sm, Eu, Gd) and with 18‐crown‐6 ether **2** (Ln = La, Ce, Pr, Nd) having a 1:1 stoichiometry as well as 4:3 complexes with **2** (Ln = La, Ce, Pr, Nd, Sm, Eu, Gd) have been synthesized and