A good-practice guide to solving and refining molecular organic crystal structures from laboratory powder X-ray...

Area of Science:

• Crystallography
• Materials Science
• Organic Chemistry

Background:

• Determining molecular organic crystal structures from polycrystalline samples is challenging.
• Existing methods may lack reproducibility and efficiency.
• Standardized workflows are needed for reliable structure determination.

Purpose of the Study:

• To present a practical real-space methodology for solving and refining molecular organic crystal structures.
• To emphasize laboratory-to-laboratory reproducibility.
• To address key challenges in crystal structure determination.

Main Methods:

• Utilizes a standardized workflow for structure determination.
• Employs the DASH software for efficient global optimization.
• Leverages the TOPAS software for robust structure refinement.

Main Results:

• A practical route from polycrystalline samples to refined crystal structures is outlined.
• The methodology ensures efficient global optimization.
• Robust refinement capabilities are demonstrated.

Conclusions:

• The presented real-space methodology offers a reproducible approach to molecular organic crystal structure determination.
• The combination of DASH and TOPAS provides a powerful tool for researchers.
• This standardized workflow enhances reliability in the field.