beryllium fluoride

Formula: BeF₂
Molecular weight: 47.008988
CAS Registry Number: 7787-49-7
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Vibrational and/or electronic energy levels

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Data compiled by: Marilyn E. Jacox

State: X

Vib. sym.	No.	Approximate type of mode	cm^-1		Med.	Method	References


Σ_g⁺	1	Sym. stretch	769.09		gas	IR	Yu, Shayesteh, et al., 2005
Π_u	2	Bend	342.61		gas	IR	Yu, Shayesteh, et al., 2005
	2	Bend	330	s	Ne	IR	Snelson, 1966
	2	Bend	309	s	Ar	IR	Snelson, 1966
	2	Bend	302	s	Kr	IR	Snelson, 1966
Σ_u⁺	3	Asym. stretch	1555.05		gas	IR	Frum, Engleman, et al., 1991 Yu, Shayesteh, et al., 2005
	3	Asym. stretch	1542	vs	Ne	IR	Snelson, 1966
	3	Asym. stretch	1528	vs	Ar	IR	Snelson, 1966
	3	Asym. stretch	1524	vs	Kr	IR	Snelson, 1966

Additional references: Jacox, 1994, page 83; Buchler, Stauffer, et al., 1964

Notes

Strong

Very strong

References

Go To: Top, Vibrational and/or electronic energy levels, Notes

Yu, Shayesteh, et al., 2005
Yu, S.; Shayesteh, A.; Bernath, P.F.; Koput, J., The vibration-rotation emission spectrum of hot BeF[sub 2], J. Chem. Phys., 2005, 123, 13, 134303, https://doi.org/10.1063/1.2039085 . [all data]

Snelson, 1966
Snelson, A., Infrared Spectra of Some Alkaline Earth Halides by the Matrix Isolation Technique, J. Phys. Chem., 1966, 70, 10, 3208, https://doi.org/10.1021/j100882a031 . [all data]

Frum, Engleman, et al., 1991
Frum, C.I.; Engleman, R., Jr.; Bernath, P.F., Fourier transform emission spectroscopy of BeF2 at 6.5 μm, J. Chem. Phys., 1991, 95, 3, 1435, https://doi.org/10.1063/1.461056 . [all data]

Jacox, 1994
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]

Buchler, Stauffer, et al., 1964
Buchler, A.; Stauffer, J.L.; Klemperer, W., None, J. Am. Chem. Soc., 1964, 86, 21, 4544, https://doi.org/10.1021/ja01075a007 . [all data]

Notes

Go To: Top, Vibrational and/or electronic energy levels, References

Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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