“…C( 8)-C( 7)-N( 6 C( 10)-C(l 1)-C( 13) 120.4(4) 0( 14)-C(5)-0(4) 122.9(4) C ( 12)-C( 11 )-C( 13) 120.4( 4) C( 7)-N(6)-C( 5) C(8)-C(7)-C (12) 126.0(4) 119.2(4) C( 7)-C( 12)-C(ll) 120.8 (4) 0 C-H lengths range from 0.93 (4) to 1.06 (5) A. 5) and 2.12 (5) A, respectively, and the N-H-O angles is 168 (4)0.25 This hydrogen bonding may be the factor that causes glide-related rather than translationally related diacetylene groups to be in close contact.…”