期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2016
卷号：7
期号：9
页码：3100-3109
出版社：University of Mohammed Premier Oujda
摘要：Mixed ligands complexes of caffeine, phenanthroline, thiocyanato or cyano were prepared and characterized by molar conductivity measurements, FT-IR, UV-Visible, EPR, DTA/DTG and X-ray diffraction. studies. The complexes are of 1:1:2:2 (metal:phen:caf:cyano or thiocyanato) stoichiometry of general formula [M(phen)(caf) 2 X 2 ] where X=CN - , SCN - , M= Co(II), Fe(II), Mn(II), Cu(II), caf : caffeine ; phen :phenanthroline, are non-electrolytes in dimethylsulfoxide. The ATG/DTG curves provided information on the thermal stabilities and thermal decomposition of new synthesized complexes. The powder-diffraction data for complexes show that these complexes are crystallized in a monoclinic system. The FT-IR, UV-Visible, EPR, spectroscopic data suggested that the complexes have octahedral cis-trans geometry.
