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The cis-isomer of oxyhydroxymethyl is about
7 kJ/mol or 800 K higher than the
trans-isomer. As it is separated from it by
a fairly high barrier, it may be observable in
environments far from chemical equilibrium.
Transitions with small quantum numbers were
reported by
(1) T. Oyama, W. Funato, Y. Sumiyoshi,
and Y. Endo,
2011, J. Chem. Phys. 134, 174303.
The predictions may be sufficiently accurate
for the detection of the molecule in the cold ISM.
Otherwise, transitions with J > 2
or Ka > 1 should be
viewed with great caution because of the very
limited data set. The predictions have been
truncated considerably. The partition function
includes levels sufficient for 300 K.
The ab initio dipole moment was reported
in (1).
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