Comprehensive analysis of crystal structure, thermal stability, optical and dielectric properties of the hybrid compound (C6H11N3O2)(H2PO4)2

The research explores the characteristics of the organic-inorganic hybrid material l-histidinium dihydrogen phosphate (LHDP), with the chemical formula (C6H11N3O2)(H2PO4)2. This compound crystallizes in the non-centrosymmetric monoclinic P21 space group. This compound exhibits notable thermal stabil...

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Main Authors: Soulayma Mtar, Nassira Chniba-Boudjada, Isabelle Ledoux-Rak, Abderrazek Oueslati, Mohamed Boujelbene
Format: Article
Language:English
Published: Elsevier 2025-05-01
Series:Results in Chemistry
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Online Access:http://www.sciencedirect.com/science/article/pii/S2211715625001857
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author Soulayma Mtar
Nassira Chniba-Boudjada
Isabelle Ledoux-Rak
Abderrazek Oueslati
Mohamed Boujelbene
author_facet Soulayma Mtar
Nassira Chniba-Boudjada
Isabelle Ledoux-Rak
Abderrazek Oueslati
Mohamed Boujelbene
author_sort Soulayma Mtar
collection DOAJ
description The research explores the characteristics of the organic-inorganic hybrid material l-histidinium dihydrogen phosphate (LHDP), with the chemical formula (C6H11N3O2)(H2PO4)2. This compound crystallizes in the non-centrosymmetric monoclinic P21 space group. This compound exhibits notable thermal stability, with a decomposition temperature of 187 °C. Furthermore, the DSC reveals an irreversible phase transition at 113 °C, suggesting an order-disorder, and first-order phenomenon within the material. In addition, UV–Vis measurements offer insights into the compound's behavior in the visible spectrum, revealing an activation phenomenon and indicating an indirect wide optical band gap evaluated at 4.96 eV. Expanding upon this research, the dielectric studies examine the electrical properties and the phase transition observed in DSC. Impedance spectroscopy reveals a non-Debye-type relaxation, with Nyquist curves fitting well to an equivalent circuit model, offering valuable insight into the compound's electrical behavior.
format Article
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institution DOAJ
issn 2211-7156
language English
publishDate 2025-05-01
publisher Elsevier
record_format Article
series Results in Chemistry
spelling doaj-art-990c8489729541dfb5e143c48302a1a52025-08-20T03:10:47ZengElsevierResults in Chemistry2211-71562025-05-011510220210.1016/j.rechem.2025.102202Comprehensive analysis of crystal structure, thermal stability, optical and dielectric properties of the hybrid compound (C6H11N3O2)(H2PO4)2Soulayma Mtar0Nassira Chniba-Boudjada1Isabelle Ledoux-Rak2Abderrazek Oueslati3Mohamed Boujelbene4Laboratory of Solid State Physics and Chemistry,LR11 ES51, department of chemistry, Faculty of Sciences, University of Sfax, B.P. 1171, 3000 Sfax, TunisiaLaboratory of Crystallography, CNRS, 25 Martyrs Avenue, 166, 380 Grenoble, FranceLaboratory of Light, Matter and Interfaces, ENS Paris-Saclay, UMR CNRS 9024, d'Alembert Institute, Centrale Supélec, Paris-Saclay University, 4 Avenue des Sciences, 91190 Gif-sur-Yvette, FranceLaboratory of Spectroscopic Characterization and Optical Materials, department of physics, Faculty of Sciences, University of Sfax, B.P. 1171, 3000 Sfax, TunisiaLaboratory of Solid State Physics and Chemistry,LR11 ES51, department of chemistry, Faculty of Sciences, University of Sfax, B.P. 1171, 3000 Sfax, Tunisia; Corresponding author.The research explores the characteristics of the organic-inorganic hybrid material l-histidinium dihydrogen phosphate (LHDP), with the chemical formula (C6H11N3O2)(H2PO4)2. This compound crystallizes in the non-centrosymmetric monoclinic P21 space group. This compound exhibits notable thermal stability, with a decomposition temperature of 187 °C. Furthermore, the DSC reveals an irreversible phase transition at 113 °C, suggesting an order-disorder, and first-order phenomenon within the material. In addition, UV–Vis measurements offer insights into the compound's behavior in the visible spectrum, revealing an activation phenomenon and indicating an indirect wide optical band gap evaluated at 4.96 eV. Expanding upon this research, the dielectric studies examine the electrical properties and the phase transition observed in DSC. Impedance spectroscopy reveals a non-Debye-type relaxation, with Nyquist curves fitting well to an equivalent circuit model, offering valuable insight into the compound's electrical behavior.http://www.sciencedirect.com/science/article/pii/S2211715625001857Structure cohesionThermal analysisLinear and nonlinear optical propertiesAnd dielectric measurements
spellingShingle Soulayma Mtar
Nassira Chniba-Boudjada
Isabelle Ledoux-Rak
Abderrazek Oueslati
Mohamed Boujelbene
Comprehensive analysis of crystal structure, thermal stability, optical and dielectric properties of the hybrid compound (C6H11N3O2)(H2PO4)2
Results in Chemistry
Structure cohesion
Thermal analysis
Linear and nonlinear optical properties
And dielectric measurements
title Comprehensive analysis of crystal structure, thermal stability, optical and dielectric properties of the hybrid compound (C6H11N3O2)(H2PO4)2
title_full Comprehensive analysis of crystal structure, thermal stability, optical and dielectric properties of the hybrid compound (C6H11N3O2)(H2PO4)2
title_fullStr Comprehensive analysis of crystal structure, thermal stability, optical and dielectric properties of the hybrid compound (C6H11N3O2)(H2PO4)2
title_full_unstemmed Comprehensive analysis of crystal structure, thermal stability, optical and dielectric properties of the hybrid compound (C6H11N3O2)(H2PO4)2
title_short Comprehensive analysis of crystal structure, thermal stability, optical and dielectric properties of the hybrid compound (C6H11N3O2)(H2PO4)2
title_sort comprehensive analysis of crystal structure thermal stability optical and dielectric properties of the hybrid compound c6h11n3o2 h2po4 2
topic Structure cohesion
Thermal analysis
Linear and nonlinear optical properties
And dielectric measurements
url http://www.sciencedirect.com/science/article/pii/S2211715625001857
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