Figure 3 (IMAGE) Institute for Basic Science Caption Photoinduced trifurcating structural changes of PCN–224(Fe) observed by means of TR-SFX. Upon irradiation, one CO molecule dissociates from iron porphyrin and organized motions occur within 200 fs. The organized motions include the oscillatory motion (Iosc) and the formation of the transient structure (Itr). Furthermore, alongside the organized motions, the thermally hot structure (Ihot) emerges through random atomic movements. Credit Institute for Basic Science Usage Restrictions Attribution Required License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.