RESEARCH
Nickel halide vapor spectra show covalency Ligand field calculations and vapor spectra interpretation describe increasing covalency from chloride to bromide to iodide Spectra of gaseous nickel halides support the increasing covalency of the nickel (II) molecules in going from chloride to bromide to iodide, Dr. Carroll W. DeKock and Dr. Dieter M. Gruen find. Their extensive investigation of metal halide spectra has resulted in data on several 3d dichlorides, 4/ bromides and iodides, and 5/ chlorides and bromides. In their studies at Argonne National Laboratory, they interpreted the spectra of gaseous nickel chloride, bromide, and iodide on the basis of axial ligand field calculations for a d8 electronic configuration. As a result, they are able to interpret the low intensity d
