PERHITUNGAN MEKANISME REAKSI ASETALISASI 2-METOKSI BENZALDEHIDA MENGGUNAKAN KATALIS ASAM (HCL) DENGAN METODE KOMPUTASI (AB INITIO)

DAHNIAR (2018) PERHITUNGAN MEKANISME REAKSI ASETALISASI 2-METOKSI BENZALDEHIDA MENGGUNAKAN KATALIS ASAM (HCL) DENGAN METODE KOMPUTASI (AB INITIO). Undergraduate thesis, UNIMED.

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Abstract

Telah dilakukan penelitian tentang perhitungan mekanisme reaksi asetalisasi 2-metoksi benzaldehida menggunakan katalis asam (HCl) dengan metode komputasi (ab initio). Penelitian ini bertujuan untuk mengetahui energi tiap tahapan reaksi asetalisasi 2-metoksi benzaldehida. Perhitungan dilakukan dengan metode ab initio dari HyperChem versi 8.0 dengan basis set 3-21G dan 6-31G*. Hasil perhitungan energi tiap tahapan selalu mengalami perubahan. Tahap awal pembentukan 2-Methoxy-benzylidene-oxonium memiliki selisih energi dengan 2-metoksi benzaldehida sebesar 423,27 kJ/mol dan 472,90 kJ/mol, tahap akhir pembentukan 1-Dimethoxymethyl-2-methoxy-benzene memiliki selisih energi dengan 2-metoksi benzaldehida sebesar -57.91 kJ/mol dan -17.43 kJ/mol. Selisih energi tertinggi pada tahap pembentukan 2-metoksi benzaldehida yaitu 423.28 kJ/mol dan 472.90 kJ/mol kJ/mol dan selisih energi terendah terjadi pada tahap 1-Dimethoxymethyl-2-methoxy-benzene.

Item Type: Thesis (Undergraduate)
Additional Information: SK-2018 KIM 033
Keywords: Asetalisasi, 2-Metoksi Benzaldehida, HCl, Komputasi, ab initio
Subjects: L Education > LB Theory and practice of education > LB1603 Secondary Education. High schools
Q Science > QD Chemistry
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam > Kimia
Depositing User: Mr Renaldi Syafaruddin Akbar
Date Deposited: 11 Mar 2019 09:50
Last Modified: 04 Apr 2019 05:08
URI: https://digilib.unimed.ac.id/id/eprint/33186

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