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Issue 45, 2018
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First identification of unstable phosphino formic acid (H2PCOOH)

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The hitherto elusive phosphino formic acid molecule (H2PCOOH) was detected for the first time in the gas phase. Theoretical calculations revealed an unexpected kinetic stability of H2PCOOH compared to the isovalent carbamic acid (H2NCOOH) although the replacement of a single nitrogen atom by phosphorus decreases the bond order from a partial double (–C[double bond, length as m-dash]N–) to a single (–C–P–) bond. This work provides a fundamental framework to explore the synthesis and stability of derivatives of carbonic acid (H2CO3), in which one or both hydroxyl groups (OH) are replaced by hydride moieties involving third row atoms.

Graphical abstract: First identification of unstable phosphino formic acid (H2PCOOH)

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The article was received on 17 Feb 2018, accepted on 10 May 2018 and first published on 11 May 2018

Article type: Communication
DOI: 10.1039/C8CC01391H
Citation: Chem. Commun., 2018,54, 5716-5719
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    First identification of unstable phosphino formic acid (H2PCOOH)

    C. Zhu, R. Frigge, A. M. Turner, R. I. Kaiser, B. Sun, S. Chen and A. H. H. Chang, Chem. Commun., 2018, 54, 5716
    DOI: 10.1039/C8CC01391H

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