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Structure of 3(5)-methyl-4-nitropyrazole in the solid state: tautomerism, crystallography and the problem of desmotropy

✍ Scribed by Foces-Foces, Concepci�n; Llamas-Saiz, Antonio L.; Claramunt, Rosa M.; L�pez, Concepci�n; Elguero, Jos�


Book ID
118002939
Publisher
The Royal Society of Chemistry
Year
1994
Tongue
English
Weight
386 KB
Volume
9
Category
Article
ISSN
0022-4936

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Structure of 3-nitropyrazole in solution
✍ Concepcion Foces-Foces; Antonio L. Llamas-Saiz; Margarita Menéndez; Nadine Jager 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 153 KB 👁 2 views

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