Question
An experiment using this molecule took place across the hall of Richard Bernstein’s group, which was studying the reaction of a single hydrogen and carbon dioxide. For 10 points each:
[10h] Name this pseudohalogen, the subject of a 1988 experiment at Caltech. A technique originally called FTS was pioneered by exciting this molecule via the A continuum, then observing its dissociation through two exit channels.
ANSWER: cyanogen iodide [or iodine cyanide; accept ICN]
[10e] The Zewail group studied the dissociation kinetics of cyanogen iodide using pump-probe spectroscopy, pioneering a field of chemistry named for this time scale.
ANSWER: femtosecond [or femtochemistry; accept femtosecond transition-state spectroscopy; accept ten to the negative 15 seconds; prompt on ultrafast or ultrashort]
[10m] Zewail developed a 4D imaging technique that uses a pump-probe method based on this phenomenon instead of light. That technique uses a CCD camera to detect this phenomenon and calculate the reciprocal space resolution.
ANSWER: electron diffraction [or ultrafast electron diffraction or femtosecond electron diffraction; prompt on electron pulses or diffraction; prompt on UED or FED or ED]
<KP, Chemistry>
Summary
| 2024 Chicago Open | 07/28/2024 | Y | 3 | 13.33 | 100% | 0% | 33% |
Data
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