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Structure of chiral pyrazoles in the solid state and in solution

✍ Scribed by Moreno-Mañas, Marcial; Sebastián, Rosa M.; Vallribera, Adelina; Piniella, Juan F.; Álvarez-Larena, Angel; Luisa Jimeno, María; Elguero, Jose´


Book ID
120168646
Publisher
Royal Society of Chemistry
Year
2001
Tongue
English
Weight
249 KB
Volume
25
Category
Article
ISSN
1144-0546

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The structure of ammonium pyrazolates in
✍ Pilar Navarro; Felipe Reviriego; Ibon Alkorta; José Elguero; Concepción López; R 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 372 KB

## Abstract The crystals obtained by mixing equimolar amounts of diethyl 1__H__‐pyrazole‐3,5‐dicarboxylate and the primary amines phenethylamine and homoveratrylamine are ammonium pyrazolate salts as determined by ^13^C and ^15^N CPMAS NMR. Copyright © 2006 John Wiley & Sons, Ltd.

Structure of 3-nitropyrazole in solution
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The molecular and crystal structure of 3-nitropyrazole was determined by X-ray analysis. The triclinic unit cell contains 12 molecules which form four hydrogen-bonded (N-H•••N) trimers. Each trimer comprises of pseudo-ring in a flattened envelope distorted towards a chair conformation. The crystal p