Abstract: The structure of 1,6-diaza-3,4,8,9,12,13-hexaoxabicyclo[4.4t.e4t]ra decane (hexamethylene triperoxide diamine or HMTD) has
been determined. The compound has a most unusual, exactly planar 3-fold coordination about the two bridgehead nitrogen atoms, with N-C distances of
1.421 (8) A. It crystallizes in the trigonal space group R3m: a = 10.417 (5) A, c= 6.975 ( 3 ) A, z = 3. The structure was refined by least squares to
an R index of 0.034. |