Method of preparation of finely divided and not pyrophoric of metals or metalloids of iii, iv, v and vi group of the system, by reaction of the halides on a hydrocarbon, in a stream of hydrogen plasma

摘要

The invention concerns novel bis-azoles of the general formula WHEREIN R is a para-phenylene radical which may be substituted and A1 and A2 are benzo radicals which may be substituted.