Hydroxymethoxycarbene, CH3OCOH, was produced via pyrolysis of monomethyl oxalate and subsequently isolated in 4He nanodroplets. Infrared laser spectroscopy reveals two rotationally resolved a,b-hybrid bands in the OH-stretch region, which are assigned to trans,trans- and cis,trans-rotamers. Stark spectroscopy of the trans,trans-OH stretch band provides the a-axis inertial component of the dipole moment, namely μa = 0.62(7) D. Here, the computed equilibrium dipole moment agrees well with the expectation value determined from experiment, consistent with a semi-rigid CH3OCOH backbone computed via a potential energy scan at the B3LYP/cc-pVTZ level of theory, which reveals substantial conformer interconversion barriers of ≈17 kcal/mol.
Broderick, Bernadette M., et al. "Infrared laser Stark spectroscopy of hydroxymethoxycarbene in <sup>4</sup>He nanodroplets." Chemical Physics Letters, vol. 639, no. C, Sep. 2015. https://doi.org/10.1016/j.cplett.2015.09.001
Broderick, Bernadette M., Moradi, Christopher P., & Douberly, Gary E. (2015). Infrared laser Stark spectroscopy of hydroxymethoxycarbene in <sup>4</sup>He nanodroplets. Chemical Physics Letters, 639(C). https://doi.org/10.1016/j.cplett.2015.09.001
Broderick, Bernadette M., Moradi, Christopher P., and Douberly, Gary E., "Infrared laser Stark spectroscopy of hydroxymethoxycarbene in <sup>4</sup>He nanodroplets," Chemical Physics Letters 639, no. C (2015), https://doi.org/10.1016/j.cplett.2015.09.001
@article{osti_1409054,
author = {Broderick, Bernadette M. and Moradi, Christopher P. and Douberly, Gary E.},
title = {Infrared laser Stark spectroscopy of hydroxymethoxycarbene in <sup>4</sup>He nanodroplets},
annote = {Hydroxymethoxycarbene, CH3OCOH, was produced via pyrolysis of monomethyl oxalate and subsequently isolated in 4He nanodroplets. Infrared laser spectroscopy reveals two rotationally resolved a,b-hybrid bands in the OH-stretch region, which are assigned to trans,trans- and cis,trans-rotamers. Stark spectroscopy of the trans,trans-OH stretch band provides the a-axis inertial component of the dipole moment, namely μa = 0.62(7) D. Here, the computed equilibrium dipole moment agrees well with the expectation value determined from experiment, consistent with a semi-rigid CH3OCOH backbone computed via a potential energy scan at the B3LYP/cc-pVTZ level of theory, which reveals substantial conformer interconversion barriers of ≈17 kcal/mol.},
doi = {10.1016/j.cplett.2015.09.001},
url = {https://www.osti.gov/biblio/1409054},
journal = {Chemical Physics Letters},
issn = {ISSN 0009-2614},
number = {C},
volume = {639},
place = {United States},
publisher = {Elsevier},
year = {2015},
month = {09}}