Solid-state green synthesis of two (1:1) organic intermolecular compounds; their physico-chemical, thermal, single crystal growth, and atomic packing studies
Loading...
Date
2024
Authors
Journal Title
Materials Chemistry and Physics
Journal ISSN
Volume Title
Publisher
Elsevier Ltd
Abstract
The solid-state solvent free reaction method has been adopted for the one-pot synthesis of novel organic materials with utmost 100 % yield. To identify the composition forming the intermolecular compound (IMC), the solid-liquid equilibria of entire compositions have been studied by establishing the phase diagram of n, n-dimethylaminobenzaldehyde (DMAB) with anthranilamide (AN) and 2-chloro-4-nitro benzoic acid (CNBA). The structural changes and novelty of the IMCs to that of parents are studied using FTIR, NMR and X-ray diffraction. The studies of optical properties of intermolecular compounds using UV�vis absorption and fluorescence spectroscopy infer the significant fluorescence emission. The single crystals of both intermolecular compounds, ANDMAB and DMABCNBA, are grown from solution using slow evaporation technique. The single crystal X-ray diffraction studies reveal that IMC of AN and DMAB is a racemic mixture whereas IMC of DMAB and CNBA is a co-crystal, and both the crystals have crystallized in triclinic P 1? space group. The thermal stability and thermal behaviors are also studied using the experimental heat of fusion values obtained from differential scanning calorimetry (DSC). � 2024
Description
Keywords
Co-crystal, Crystal growth, Intermolecular compound, Phase diagram, Solvent free reaction