Crescimento de Cristais de L-Asparagina Monohidratada Puro e Dopados com Íons Fe+3 e Caracterização por Difração Múltipla de Raios-X utilizando Radiação Síncrotron e Difração de Policristais

Abstract

The growth of L-asparagine monohydrate crystals, both in their pure form and doped with Fe³⁺ ions, is of great importance in the field of materials science and chemistry, particularly due to their applications in optical and electronic devices, as well as their structural studies. Doping with metal ions like Fe³⁺ can alter the physical, chemical, and optical properties of the crystal, allowing fine-tuning of its characteristics for specific applications.

The structural characterization of these crystals is essential to understand how doping affects the crystalline structure and, consequently, its properties. For this purpose, advanced diffraction techniques are used, such as:

Multiple X-ray diffraction using synchrotron radiation: This technique uses highly energetic and collimated beams from particle accelerators to investigate the atomic structure of crystals in detail. Synchrotron radiation allows for high spatial resolution and the detection of small distortions or alterations in the crystalline lattice caused by doping.

Powder diffraction: This method allows the analysis of samples that are not in the form of perfect single crystals, providing information about the distribution of crystal orientations in the sample and the presence of different crystalline phases.

These techniques offer a detailed view of the atomic arrangement and the interaction between the dopant ions and the crystal matrix. Additionally, they enable the study of how these factors influence macroscopic properties such as electrical conductivity, optical response, and thermal stability. Therefore, the growth and characterization of L-asparagine monohydrate crystals doped with Fe³⁺ ions are essential for advances in technologies based on crystalline materials and their industrial and technological applications.