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All Journal Indonesian Journal of Pure and Applied Chemistry
Roberta Anjelia
Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Tanjungpura
Biochemistry, Genetics & Molecular Biology Chemistry

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SINTESIS DAN TRANSISI ELEKTRONIK SENYAWA KOMPLEKS KLOROFIL DENGAN LOGAM (M = Co2+, Fe3+) Roberta Anjelia; Imelda Hotmarisi Silalahi; Gusrizal Gusrizal
Indonesian Journal of Pure and Applied Chemistry Vol 2, No 3 (2019)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2809.383 KB) | DOI: 10.26418/indonesian.v2i3.36891

Abstract

Metal complexes of chlorophyll (M = Co2+, Fe3+) have been prepared from a reaction of chlorophyll isolated from cassava leaves and metal precursors (CoCl2.6H2O or FeCl3) in methanol under reflux for 4 hours. FTIR spectra of the products indicated bond changes in chlorophyll structure particularly on absorption peaks with regard to N–H, N=C, C=C and C=O groups as a result of substitution of magnesium ion with cobalt(II) or iron(FE). UV-Vis spectra mainly showed hypsochromic shifts along with an increase in absorption intensity on Soret band area in the two complexes implying electronic effects of chlorin rings due to metal complexation.
Co-Authors Gusrizal Gusrizal Imelda Hotmarisi Silalahi