Synthesis, mol-ecular and crystal structure of 1-(1,2-di-hydro-phthalazin-1-yl-idene)-2-[1-(thio-phen-2-yl)ethyl-idene]hydrazine.
Acta Crystallogr E Crystallogr Commun
; 75(Pt 2): 251-254, 2019 Feb 01.
Article
em En
| MEDLINE
| ID: mdl-30800461
ABSTRACT
The title compound, C14H12N4S, was synthesized by the condensation reaction of hydralazine and 2-acetyl-thio-phene and during the reaction, a proton transfer from the imino nitro-gen atom to one of the endocylic nitro-gen atoms occurred. The compound crystallizes in the monoclinic crystal system with two independent mol-ecules (mol-ecules 1 and 2) in the asymmetric unit. In each mol-ecule, there is a slight difference in the orientation of the thio-phene ring with respect to phthalazine ring system, mol-ecule 1 showing a dihedral angle of 42.51â
(1)° compared to 8.48â
(1)° in mol-ecule 2. This implies an r.m.s deviation of 0.428â
(1)â
Å between the two mol-ecules for the 19 non-H atoms. The two independent mol-ecules are connected via two N-Hâ¯N hydrogen bonds, forming dimers which inter-act by two bifurcated π-π stacking inter-actions to build tetra-meric motifs. The latter are packed in the ac plane via weak C-Hâ¯π inter-actions and along the b axis via C-H â¯N and C-Hâ¯π inter-actions. This results a three-dimensional architecture with a tilted herringbone packing mode.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Acta Crystallogr E Crystallogr Commun
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Camarões