The Crystal Structure of 1,6-Diamino-1,1,6,6-tetramethyl-2,4-hexadiyne and Studies of its Complexes with Cobalt(II), Nickel(II) and Copper(II)

The diacetylene 1,6-diamino-1,I,6,6-tetramethyl-2,4-hexadiynhe as been prepared from 1,1- dimethyl propargylamine and a complete structure determination has been carried out. Some new compounds of 1,6-diamino-1,1,6,6-tetramethyl-2,4-hexadiwyinteh cobalt, nickel and copper have been prepared. The compounds have been characterised by analysis, magnetic moments, vibrational and electronic spectra. The thiocyanate compound of cobalt and the chloro-compounds of nickel and copper were found to have octahedral-based structures. The chloro-compound of cobalt has a tetrahedral structure.