Different weak interactions in the crystals of three isomeric (E)-N-methyl-N′-(nitrobenzylidene)-2-(thiophen-2-yl)acetohydrazides

Autor: William T. A. Harrison, James L. Wardell, Laura N. F. Cardoso, Marcus V. N. de Souza, Thais C. M. Noguiera, Shaun T. Lancaster, Carlos R. Kaiser
Rok vydání: 2016
Předmět:
Zdroj: Acta Crystallographica Section E: Crystallographic Communications, Vol 72, Iss 12, Pp 1677-1682 (2016)
Acta Crystallographica Section E: Crystallographic Communications
ISSN: 2056-9890
Popis: Three isomeric methyl­ated 2-(thio­phen-2-yl)acetohydrazides show little consistency in the pattern of weak (C—H⋯O, C—H⋯π and π–π) inter­actions in their crystal structures.
The crystal structures of three isomeric (E)-N-methyl-N′-(nitro­benzyl­idene)-2-(thio­phen-2-yl)acetohydrazides (formula C14H13N3O3S) are described, with the nitro group in ortho, meta and para positions in the benzene ring. In each crystal structure, mol­ecules are linked by various weak inter­actions (C—H⋯O and C—H⋯π bonds, and π–π stacking), leading to three-dimensional networks in each case, but with little similarity between them.
Databáze: OpenAIRE