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Summary

This summary is machine-generated.

Single crystals of a yellow azo pigment intermediate, C(10)H(11)NO(4), were analyzed. The study reveals molecular dimerization via hydrogen bonds and unique stacking arrangements, crucial for pigment synthesis.

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Area of Science:

Crystallography
Materials Science
Organic Chemistry

Background:

The title compound, C(10)H(11)NO(4), serves as a key intermediate in the industrial production of yellow azo pigments.
Understanding the crystal structure of intermediates is vital for optimizing synthesis and pigment properties.

Purpose of the Study:

To elucidate the crystal structure of the C(10)H(11)NO(4) intermediate.
To characterize the intermolecular and intramolecular interactions governing its solid-state arrangement.
To provide structural insights relevant to yellow azo pigment synthesis.

Main Methods:

Single crystal X-ray diffraction was employed to determine the molecular and crystal structure.
Analysis of hydrogen bonding patterns (N-H⋯O=C) was performed.
The packing of molecules in the crystal lattice was investigated.

Main Results:

Single crystals of C(10)H(11)NO(4) were successfully obtained and analyzed.
Molecules crystallize as centrosymmetric dimers linked by two intermolecular N-H⋯O=C hydrogen bonds.
Each molecule also exhibits an intramolecular N-H⋯O=C hydrogen bond, contributing to the overall structure.
Dimers form stacks along the a-axis, with neighboring stacks adopting a herringbone arrangement.

Conclusions:

The crystal structure of the yellow azo pigment intermediate C(10)H(11)NO(4) has been determined.
Specific hydrogen bonding and stacking motifs dictate the solid-state organization.
This structural understanding can inform the industrial synthesis of yellow azo pigments.