Methane-d2

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Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director

Quantity Value Units Method Reference Comment
Ttriple90.15KN/AArmstrong, Brickwedde, et al., 1953Uncertainty assigned by TRC = 0.03 K
Quantity Value Units Method Reference Comment
Ptriple0.109barN/AArmstrong, Brickwedde, et al., 1953Uncertainty assigned by TRC = 0.0003 bar

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Vibrational and/or electronic energy levels

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Takehiko Shimanouchi

Symmetry:   C     Symmetry Number σ = 2


 Sym.   No   Approximate   Selected Freq.  Infrared   Raman   Comments 
 Species   type of mode   Value   Rating   Value  Phase  Value  Phase

a1 1 CH2 s-str 2974  C 2976 M gas 2974 gas
a1 2 CD2 s-str 2202  C 2202 W gas
a1 3 CH2 scis 1436  C 1436 W gas
a1 4 CD2 scis 1033  C 1033 S gas 1034 gas
a2 5 CH2 twist 1333  C 1329 W ia gas 1333 gas Observed through Coriolis interaction with ν9
b1 6 CH2 a-str 3013  C 3013 S gas
b1 7 CH2 rock 1090  C 1090 S gas 1090 gas
b2 8 CD2 a-str 2234  C 2234 M gas
b2 9 CH2 wag 1234  C 1234 M gas

Source: Shimanouchi, 1972

Notes

SStrong
MMedium
WWeak
iaInactive
C3~6 cm-1 uncertainty

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Armstrong, Brickwedde, et al., 1953
Armstrong, G.T.; Brickwedde, F.G.; Scott, R.B., The Vapor Pressure of the Deuteromethanes, J. Chem. Phys., 1953, 21, 1297. [all data]

Shimanouchi, 1972
Shimanouchi, T., Tables of Molecular Vibrational Frequencies Consolidated Volume I, National Bureau of Standards, 1972, 1-160. [all data]


Notes

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