CHEMVIRO : Jurnal Kimia dan Ilmu Lingkungan
Vol. 3 No. 1 (2025): Vol. 3 No. 1 (2025)

Analisis Stabilitas Beberapa Konformasi Glisin Melalui Pendekatan Komputasi Kuantum Mekanika Molekuler

Thoriq, Mochammad Ragil (Unknown)



Article Info

Publish Date
28 Feb 2025

Abstract

This study aims to analyze the stability of various glycine conformations using a quantum computational approach based on molecular mechanics. The methodology involves geometry optimization performed on computational servers, where each conformation is analyzed to obtain the Final Single Point Energy, Loewdin charges, dipole moments, and the energy gap between the Highest Occupied Molecular Orbital (HOMO) and Lowest Unoccupied Molecular Orbital (LUMO). Optimization results reveal stability differences among glycine conformations based on single-point energy values, with Loewdin charge values indicating varied electron distribution across each conformation. The most optimal energy obtained was -284.080 Hartree for the conformation in which the amino group aligns with the carbonyl group. Dipole moment analysis provides insights into conformation polarity, where differences in glycine conformations significantly impact the overall dipole moment. The conformation with the highest polarity features the amino group adjacent to the hydroxyl group, with a dipole moment of 5.58246 Debye. Additionally, the HOMO-LUMO energy gap for each conformation correlates with glycine’s stability and chemical reactivity. This study offers insights into factors influencing glycine stability, such as steric and electronic effects, and aims to support further research on glycine development.

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Journal Info

Abbrev

CHEMVIRO

Publisher

Subject

Chemical Engineering, Chemistry & Bioengineering Chemistry Environmental Science

Description

CHEMVIRO : Jurnal Kimia dan Ilmu Lingkungan (JKIL) dengan nomor registrasi ISSN :2986-5255 (online), merupakan jurnal ilmiah yang menerbitkan artikel-artikel yang berkaitan dengan pendidikan Kimia dan Ilmu Lingkungan. Jurnal ini akan menerbitkan dua isu dalam setahun (Februari dan Agustus). Setiap ...