Pentawati, Cindy Merriana (2016) Sintesis Dan Uji Toksisitas Kompleks Kobalt(II) Dengan Ligan 2-metil-4,5-difenil-1H-imidazol. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Ligan 2-metil-4,5-difenil-1H-imidazol telah berhasil
disintesis. Ligan tersebut dikarakterisasi dengan menggunakan
1H NMR, 13C NMR dan FTIR. Ligan yang diperoleh
dikomplekskan dengan ion logam kobalt(II). Kompleks yang
didapatkan berupa padatan polikristalin berwarna hijau kehitaman
dengan formula [CoL2Cl2(H2O)2]∙3,5H2O (L=2-metil-4,5-difenil-
1H-imidazol). Rumus molekul kompleks didukung oleh hasil
analisis kadar unsur CHN dan ion logam dalam senyawa
kompleks. Hasil analisis menunjukkan kadar unsur (%) C, H, N
dan Co yang diperoleh secara berturut-turut adalah 55,17(55,13);
5,68(5,63); 8,07(8,04) dan 8,53(8,45). Karakterisasi FTIR
menunjukkan adanya spektrum vibrasi Co-N pada 449,43 cm-1
dan Co-Cl pada 422,42 cm-1. Rumus molekul diperkuat dengan
hasil analisis termogravimetri yang menunjukkan adanya air
kristal dalam kompleks yang terbentuk. Nilai LC50 dengan
metode Brine Shrimp Lethality Test dari ligan 2-metil-4,5-difenil-1H-imidazol sebesar 208,80 ppm, sedangkan pada kompleks
[CoL2Cl2(H2O)2]∙3,5H2O sebesar 168,24 ppm. Nilai LC50 dari
kedua senyawa tersebut kurang dari 1000 ppm sehingga dapat
disimpulkan bahwa kedua senyawa tergolong senyawa aktif
toksik pada larva udang Aretmia salina. ========== Ligand 2-methyl-4,5-diphenyl-1H-imidazole have been
successfully synthesized. The Ligand is characterized by using
1H NMR, 13C NMR and FTIR. Ligand was complexed with metal
ion cobalt(II). The complex obtained in the form of blackish
green polycrystalline solid with formula [CoL2Cl2(H2O)2]∙3,5H2O
(L=2-methyl-4,5-diphenyl-1H-imidazole). Molecular formula of
complex is supported by the result of CHN elemental and metal
ions analysis content in complex compounds. The result of the
analysis showed content of element (%) C, H, N and metal ion
Co(II) were obtained 55,17(55,13); 5,68(5,63); 8,07(8,04) and
8,53(8,45), respectively. FTIR characterization of vibrational
spectrum showed existence of Co-N at 449.43 cm-1 and Co-Cl at
422.42 cm-1. The molecular formula is reinforced by the results of
thermogravimetric analysis which indicate the presence of lattice
water in complex form. The LC50 value with Brine Shrimp
Lethality Test of ligand 2-methyl-4,5-diphenyl-1H-imidazole and
complex [CoL2Cl2(H2O)2]∙3,5H2O amounted to 208,80 ppm and
168.24 ppm, repectively. The LC50 value of both these
compounds less than 1000 ppm so it can be concluded that both
compounds are classified as toxic active compounds in shrimp
larva Aretmia salina.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSKi 546.661 Pen s 3100016066978 |
| Uncontrolled Keywords: | ligan 2-metil-4,5-difenil-1H-imidazol, senyawa kompleks, kobalt(II), sintesis, uji toksisitas, ligand 2-methyl-4,5-diphenyl-1H-imidazole, complex compounds, Co(II), toxicity test. |
| Subjects: | Q Science > QH Biology > QH541.15.T68 Toxicity testing |
| Divisions: | Faculty of Mathematics and Science > Chemistry > 47201-(S1) Undergraduate Thesis |
| Depositing User: | - Davi Wah |
| Date Deposited: | 13 Nov 2019 07:30 |
| Last Modified: | 13 Nov 2019 07:30 |
| URI: | http://repository.its.ac.id/id/eprint/71711 |
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