![]() Complexes 1 and 2 represent the first examples of metal complexes of Hmps. and Živković-Radovanović, Vukosava",Ībstract = "In the reaction of acetone solutions of CoX2∙nH2O (X = Cl, Br) with methyl pyruvate semi/thiosemicarbazone (Hmps, Hmpt) the first Co(II) complexes with these ligands, i.e., (X = Cl (1), Br (2)), ∙2H2О (3) and Br2∙Me2CO (4) were obtained. and Belošević, Svetlana and Jaćimović, Željko K. T1 - First cobalt complexes with methyl pyruvate semi/thiosemicarbazone - synthesis, physico-chemical and structural characterizationĮR = "Rodić, Marko and Miškov-Pajić, Vukoslava and Leovac, Vukadin M. T2 - Journal of the Serbian Chemical Society Complex 2 has cis-Br configuration, while complexes 3 and 4 have mer-configuration. The central metal atoms are situated in a deformed octahedral coordination environment. Structural analysis showed that both ligands coordinate in a neutral form in a tridentate manner, via the ester oxygen, imine nitrogen and the oxygen atom of the ureido (Hmps), or the sulfur atom of the thioureido group (Hmpt). ![]() The effective magnetic moments were close to the upper limit (5 μB) for complexes 1 and 2, and close to the lower limit (4.4 μB) for complexes 3 and 4, and as such are characteristic for high-spin Co(II) complexes. All the obtained compounds were characterized by elemental analysis, conductometry, magnetic measurements, and IR spectra, and for complexes 2–4, single crystal X-ray diffraction analysis was also performed. Complex 2 has cis-Br configuration, while complexes 3 and 4 have mer-configuration.ĪB - In the reaction of acetone solutions of CoX2∙nH2O (X = Cl, Br) with methyl pyruvate semi/thiosemicarbazone (Hmps, Hmpt) the first Co(II) complexes with these ligands, i.e., (X = Cl (1), Br (2)), ∙2H2О (3) and Br2∙Me2CO (4) were obtained. ![]() Structural analysis showed that both ligands coordinate in a neutral form in a tridentate manner, via the ester oxygen, imine nitrogen and the oxygen atom of the ureido (Hmps), or the sulfur atom of the thioureido gro. First Cobalt owns the Iron Creek cobalt-copper project in Idaho, USA as well as several significant cobalt and silver properties in the Canadian Cobalt Camp.In the reaction of acetone solutions of CoX2∙nH2O (X = Cl, Br) with methyl pyruvate semi/thiosemicarbazone (Hmps, Hmpt) the first Co(II) complexes with these ligands, i.e., (X = Cl (1), Br (2)), ∙2H2О (3) and Br2∙Me2CO (4) were obtained. Refinery commissioning remains on schedule for October 2022."įirst Cobalt owns North America's only permitted cobalt refinery, a critical asset in the development and manufacturing of batteries for electric vehicles. "This sales arrangement is a key milestone for the company as firming up commercial arrangements supports the financing process for the refinery expansion. "Stratton Metals are among the most knowledgeable cobalt traders in the world, with a network of relationships in every major market", said President and CEO Trent Mell. Quantities will be determined by First Cobalt in advance of each calendar year and are subject to a minimum annual quantity. (Kitco News) - First Cobalt (TSX-V: FCC OTCQX: FTSSF) today announced that it signed a flexible, long-term, offtake agreement with Stratton Metal Resources for the sale of future cobalt sulfate production from the First Cobalt refinery located in Ontario, Canada.įirst Cobalt said it will have the option to sell up to 100% of its annual cobalt sulfate production to Stratton Metals once its refinery is in production. Editor's Note: With so much market volatility, stay on top of daily news! Get caught up in minutes with our speedy summary of today's must-read news and expert opinions.
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