Abstract
Complexes of the chlorides and bromides of manganese(II), iron(II), cobalt(II), nickel(II), copper(II) and zinc(II) with isoniazid (INH) have been prepared and studied by means of their magnetic susceptibilities, infrared and electronic spectra. All of the complexes have octahedral structures with the exception of the zinc complexes and the chloro- complexes of manganese and iron which are tetrahedral. The chloro- complex of copper is square planar.