4-Ethynyl-1,2-methylenedioxybenzene at 150 K.
The title compound, C(9)H(6)O(2), contains two moderate C-H.O hydrogen bonds. That involving the terminal alkyne gives rise to chains along the b axis. The other hydrogen bond occurs over a centre of symmetry, leading to dimers. The combination of the two interactions gives rise to rings, each comprising six molecules, which are part of infinite sheets in the bc plane.
Lawrence
S E
SE
Department of Chemistry, University College Cork, Cork, Ireland. s.lawrence@ucc.ie
Blake
A J
AJ
Maguire
A R
AR
Moynihan
E J
EJ