ISIS Neutron and Muon Source Data Journal

Variable P,T study of iron carbonyl, Fe(CO)5

Abstract: Iron pentacarbonyl is an iconic molecule with widespread applications in organometallic chemistry. However, its behaviour at non-ambient conditions is poorly known. In a room-temperature study on PEARL, we have determined that the high-pressure phase II differs from the low-temperature ambient-pressure phase we discovered in 2020 using HRPD, contrary to our expectations. Furthermore, we failed to observe the expected phase III. In this work we propose to explore the relationship between the high-pressure phase II (denoted II-HP) and low-temperature phase II (denoted II-LT) by compressing iron pentacarbonyl at 200 K and then attempting to cool close to the temperature of liquid nitrogen. We will also explore pressure-temperature space up to the maximum available load to confirm the non-existence of phase III below room temperature.

Principal Investigator: Dr Dominic Fortes
Local Contact: Dr Craig Bull
Experimenter: Professor Stewart Parker

DOI: 10.5286/ISIS.E.RB2410127

ISIS Experiment Number: RB2410127

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Dominic Fortes et al; (2024): Variable P,T study of iron carbonyl, Fe(CO)5, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2410127

Data is released under the CC-BY-4.0 license.