(E)-1-(2,4-Dinitro-phen-yl)-2-[1-(2-meth-oxy-phen-yl)ethyl-idene]hydrazine.

Area of Science:

• Crystallography
• Organic Chemistry
• Molecular Structure

Background:

• Understanding the precise three-dimensional arrangement of atoms within a molecule is crucial for predicting its properties and reactivity.
• Crystal structure analysis provides fundamental insights into intermolecular forces and solid-state behavior.

Purpose of the Study:

• To determine the detailed molecular and crystal structure of the title compound, C(15)H(14)N(4)O(5).
• To characterize the conformation, dihedral angles, and intermolecular interactions within the crystal lattice.

Main Methods:

• Single-crystal X-ray diffraction was employed to collect diffraction data.
• The crystal structure was solved and refined to determine atomic positions and bond parameters.

Main Results:

• The molecule adopts an E conformation around the C=N double bond.
• Significant dihedral angles were measured between the two benzene rings (37.83°) and between the ethylidenehydrazine plane and the benzene rings (4.93° and 42.38°).
• An intramolecular N-H⋯O hydrogen bond forms an S(6) ring, and intermolecular C-H⋯O interactions link molecules into chains, further stabilized by π-π stacking (3.5927 Å centroid-centroid distance).

Conclusions:

• The study provides a comprehensive structural characterization of C(15)H(14)N(4)O(5) in the solid state.
• The identified hydrogen bonding and π-π stacking interactions are key factors governing the crystal packing and stability.