Sintesis dan Karakterisasi Kompleks Triaquatrisulfisoksazolkobalt (ii)sulfat.nhidrat
ABSTRACT: Complex of
cobalt(II) with sulfisoxazole (slfs) has been synthesized in 1 : 4 mole ratio
of metal to ligands in methanol, the complex formula is [Co(slfs)3(H2O)3]SO4.nH2O.
The electric conductivity of the complex in methanol correspond to 1:1
electrolyte. The thermal analysis indicates that complex contain some hydrates.
Magnetic Susceptibility measurements show that the complex is paramagnetic with
µeff = 4,60(9) BM. Infra red spectra indicates that the primary N-H group
coordinated to the center ion, it is signed by a shift of primary N-H group
absorption. UV-Vis spectrum appears one peak at λ= 515,5 nm (19.342 cm-1) due
to transition peak of 4T1g (F) → 4T2g (P) (ν3) overlay to transition peak of
4T1g(F) → 4A2g(F) (ν2). The value of 10 Dq (Δo) that corresponds to transition
4T1g → 4T2g (n1) is 95,29 kJ.mol-1. Cyclic voltammograms have revealed quasi
reversible. The complex probably is octahedral.
Penulis: Sentot Budi Rahardjo,
Abu Masykur, Melin Puspitaningrum
Kode Jurnal: jpkimiadd060075
