(E)‐1‐[(5‐Chloro‐3‐methyl‐1‐phenyl‐1H‐pyrazol‐4‐yl)methylidene]‐2‐phenylhydrazine: sheets built from π‐stacked hydrogen‐bonded chains. Issue 2 (16th January 2014)

• Record Type: Journal Article
• Authors: Trilleras, Jorge; Utria, Michael; Cobo, Justo; Glidewell, Christopher
• Is Part Of: Acta crystallographica. Volume 70:Issue 2(2014:Feb.)
• Page Start: 216
• Page End: 219
• Publication Date: 2014-01-16
• Subjects: Crystallography -- Periodicals; Crystals -- Periodicals; 548.3
• DOI: 10.1107/S2053229614000680
• Languages: English
• ISSNs: 2053-2296

Abstract

<abstract abstract-type="main" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p>The reaction between 5‐chloro‐3‐methyl‐1‐phenyl‐1<italic>H</italic>‐pyrazole‐4‐carbaldehyde and phenylhydrazine proceeds <italic>via</italic> condensation to provide the title compound, C₁₇H₁₅ClN₄, (I), rather than <italic>via</italic> the alternative routes of simple nucleophilic substitution or cyclocondensation. With the exception of the phenyl group bonded directly to the pyrazole ring, the non‐H atoms of (I) are nearly coplanar, with an r.m.s. deviation of 0.058 Å. The molecules are linked into <italic>C</italic>(7) chains by a single N—H...N hydrogen bond, and the chains are linked by π–π stacking interactions to form sheets.</p> </abstract>