Understanding X-ray Crystallographic Diffraction of L-menthol by Rietveld Refinement: Insight into Structural Symmetry and Lattice Volume
S. M. Monjurul Ahashan
Jashore Government Mohila College, Jashore-7400, National University, Bangladesh.
Nafis Rahman Sayeem
Department of Applied Chemistry and Chemical Engineering, Islamic University, Kushtia-7003, Bangladesh.
Md. Ashikur Rahman Meada
Department of Applied Chemistry and Chemical Engineering, Islamic University, Kushtia-7003, Bangladesh.
Zannatun Naim
Department of Applied Chemistry and Chemical Engineering, Islamic University, Kushtia-7003, Bangladesh.
Kamrun Nahar
Department of Applied Chemistry and Chemical Engineering, Islamic University, Kushtia-7003, Bangladesh.
Md. Hasnain Mustak
Institute of Mining, Mineralogy and Metallurgy (IMMM), Bangladesh Council of Scientific and Industrial Research (BCSIR), Joypurhat-5900, Bangladesh.
Fahim Khandokar Anik
Department of Chemistry, Govt. Tolaram College, National University, Gazipur-1704, Bangladesh.
Pulak Ghosh
Department of Chemistry, Govt. Tolaram College, National University, Gazipur-1704, Bangladesh.
Fariha Zannat
Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka-1205, Bangladesh.
Md. Ashraful Alam
*
Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka-1205, Bangladesh.
*Author to whom correspondence should be addressed.
Abstract
Highlighted the recent advances in the mechanism of crystallographic bibliography of L-Menthol crystals and to provide an overview of its application explored as well as its structural symmetry and lattice volume performance. The crystallographic analysis was explored by the X-ray diffraction (XRD) technique, and the surface morphology of L-Menthol crystals was depicted by polarized microscopic examination. The materials are composed of 100 % L-Menthol crystals and calculated lattice parameters a=b= 21.29Å, c= 6.038Å and angles α=β= 90° and γ= 120° for the hexagonal crystal system by Rietveld refinement. The crystallite sizes were calculated in Williamson-Hall plot 55.2 nm, Monshi-Scherrer model 58.3 nm, Size-strain plot model 66.1 nm, and Halder-Wagner model 62.5 nm; and the Scherrer model expressed at 63.03 nm. The calculated crystal strain is 0.256 %. The lower crystal strain suggests high stability of the phase in L-Menthol and mechanical properties. Lowering lattice volume 2371.126 ų in a structure typically refers to reducing the amount of material used to create a lattice structure of L-Menthol, often while maintaining or improving desired mechanical properties. The crystals exhibit a well-defined, hexagonal morphology with smooth, flat surfaces and sharp edges, which is characteristic of hexagonal L-Menthol crystals revealed by microscopic examination.
Keywords: X-ray crystallography, rietveld refinement, L-menthol, structural symmetry, lattice volume