Synthesis and Characterization of Tetrakis-aqua-bis-isonicotin-amide(itmd)nickel(II) Sulfate

International Conference on Advanced Materials for Better Future 2017

Rahardjo, S.B.^1 ; Hastuti, S.^1 ; Amanati, N.^1 ; Syaima, H.^2

Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sebelas Maret, Surakarta

57126, Indonesia^1

Chemistry Graduate Program, Graduate School, Universitas Sebelas Maret, Surakarta

57126, Indonesia^2

关键词: Atomic absorption spectroscopy;    Conductivity meters;    Differential thermal analyzers;    Electronic spectrum;    Infrared spectrum;    Magnetic susceptibility measurements;    Stretching vibrations;    Synthesis and characterizations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/333/1/012004/pdf
DOI  :  10.1088/1757-899X/333/1/012004

来源: IOP

【 摘 要 】

The complex of Tetrakis-aqua-bis-(isonicotinamide)nickel(II) sulfate has been synthesized in 1:2 mole ratio of metal to ligands in methanol. The formula of the complex predicted from analysis nickel content in the complex by Atomic Absorption Spectroscopy (AAS) was Ni(itmd)2SO4(H2O)4. The conductivity of the complex in methanol was measured by conductivity meter correspond to 1:1 electrolyte. Thermal analysis of the complex was determined by Differential Thermal Analyzer (DTA) indicating that the complex contains four H2O molecules as ligands. The magnetic susceptibility measurement showed that the complex was paramagnetic with μeff= 3.02 BM. The electronic spectra of the complex appear due to two transition peak on λ = 398 nm and 664 nm. The Infrared spectra showed a shift of NH2stretching vibration of Ni(itmd)2SO4(H2O)4. These facts indicated that these functional groups were coordinated to the center ion of the complexes. The proposed structure of the complex was octahedral therefore the possibility formula of this complex was [Ni(itmd)2(H2O)4]SO4.