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RSC Advances
The only rotationally resolved formaldehyde line appears in the
narrow wavelength region of 28 290 to 28 350 cmꢀ1 in the
photolysis precursor cyclohexylmethyl nitrites. However, a
weaker formaldehyde line and a resolved vibrational 2-cyclo-
hexylethoxy spectrum were acquired in the photolysis precursor
2-cyclohexylethyl nitrites. As for our experiment and calculation
result, the big cyclohexyl group substituent the a H of CH3O
suggested to be the cause of the reduced barrier to decompo-
sition compare to b H of CH3CH2O. It is probable that an
increasing steric repulsion and few conformers for cyclo-
hexylmethoxy relative to 2-cyclohexylethoxy will difficult
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~
internal conversion to the X state and lead to enough energy to
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unimolecularly dissociate to C6H11 + H2CO.
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spectrum of 2-cyclohexylethoxy was acquired in the wavelength Chem., 2004, 82, 854–866.
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´
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¨
¨
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¨
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Acknowledgements
The authors are pleased to acknowledge the nancial support of
this startup project for high-level talents of Guizhou Institute of
Technology (XJGC20150101). We also acknowledge the nancial
support of this research by the Natural Science Research Project
of Guizhou Provincial Education Office in 2013 ([2013]180 and
[2013]181) and support from Guizhou Province Science and
Technology Fund in 2013 ([2013]2006 and [2013]2007).The
authors gratefully acknowledge helpful discussions with
Professor Lily Zu of Beijing Normal University.
27 J. B. Foresman and A. Frisch, Exploring Chemistry with
Electronic Structure Methods, Gaussian Inc., Pittsburgh, PA,
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28 J. Jin, I. Sioutis, G. r. Tarczay, S. Gopalakrishnan, A. Bezant
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29 R. Chhantyal-Pun, M. Roudjane, D. G. Melnik, T. A. Miller
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