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Nitration of Benzo Crown Ethers with Potassium Nitrate in Polyphosphoric Acid

✍ Scribed by A. D. Grebenyuk; S. A. Andreev; I. A. Stempnevskaya; M. G. Levkovich; A. K. Tashmukhamedova

Book ID: 110362766
Publisher: Springer US
Year: 2000
Tongue: English
Weight: 134 KB
Volume: 36
Category: Article
ISSN: 0009-3122
DOI: 10.1023/a:1017530731688

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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