The first Werner coordination complex contained this metal bonded to four ammines.
The oxo process uses a catalyst containing this metal bonded to four carbonyl groups, which is useful for hydroformylations. To prove parity violation, the Wu experiment used atoms of this element. The first Werner coordination complex contained this metal bonded to four ammines. This element's chloride forms a hexahydrate that is purple in color, but is blue when desiccated. This element is found in a (*) corrin ring in a biological compound required for the synthesis of odd-chain fatty acids. That vitamin, which requires intrinsic factor for its absorption, is B12. This element, iron, and nickel are ferromagnetic. For 10 points, name this transition metal which forms a namesake blue glass, and which lies right after iron on the Periodic Table.
The oxo process uses a catalyst containing this metal bonded to four carbonyl groups, which is useful for hydroformylations.
cobalt [or Co]