Keywords: Acetylene-CRC-IR-dimensions-2D.png Structural formula of the acetylene ethyne molecule C<sub>2</sub>H<sub>2</sub> The molecule belongs to the D<sub> ˆžh</sub> point group Structural information determined by infrared spectroscopy from http //www hbcpnetbase com/ CRC Handbook 88<sup>th</sup> edition Own 2009-02-02 Ben Mills Benjah-bmm27 Images by Ben Mills Acetylene |