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dimethylcadmium

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Gas phase thermochemistry 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: José A. Martinho Simões

Quantity Value Units Method Reference Comment
Deltafgas123. ± 12.kJ/molReviewMartinho Simões 
Deltafgas102.2 ± 4.2kJ/molReviewMartinho Simões 
Deltafgas104.8 ± 1.3kJ/molReviewMartinho SimõesSelected data.

Condensed phase thermochemistry 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 as indicated in comments:
MS - José A. Martinho Simões
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Deltafliquid65.1 ± 4.2kJ/molReviewMartinho SimõesMS
Deltafliquid67.7 ± 1.3kJ/molReviewMartinho SimõesSelected data.; MS
Quantity Value Units Method Reference Comment
liquid201.88J/mol*KN/AN/ADH
Quantity Value Units Method Reference Comment
Deltafsolid86. ± 12.kJ/molReviewMartinho SimõesMS
Quantity Value Units Method Reference Comment
Deltacsolid-1989. ± 12.kJ/molCC-SBLong and Norrish, 1949Please also see Cox and Pilcher, 1970.; MS

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
132.01298.15N/AT = 15 to 300 K.; DH

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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny, director
MS - José A. Martinho Simões
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Ttriple270.48KN/AN/ACrystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC
Quantity Value Units Method Reference Comment
Deltavap37.1 ± 0.1kJ/molRSCSokolovskii and Baev, 1985MS
Quantity Value Units Method Reference Comment
Deltasub37.1 ± 0.1kJ/molCC-SBSokolovskii and Baev, 1985MS

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Reference Comment
38.296291.5N/AP = 3.033 kPa; DH
37.1 ± 0.1324.Sokolovski and Baev, 1985Based on data from 271. - 378. K. See also Baev, 2001.; AC
38.9282.N/ABased on data from 270. - 295. K.; AC

Entropy of vaporization

DeltavapS (J/mol*K) Temperature (K) Reference Comment
131.4291.5N/AP; DH

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
7.84270.5N/AAC

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
1.5209254.35crystaline, IIcrystaline, IN/ADH
7.837270.48crystaline, IliquidN/ADH

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
5.98254.35crystaline, IIcrystaline, IN/ADH
28.97270.48crystaline, IliquidN/ADH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Reaction thermochemistry 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: José A. Martinho Simões

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

C2H6Cd (g) = CH3Cd (g) + Methane (g)

By formula: C2H6Cd (g) = CH3Cd (g) + CH4 (g)

Quantity Value Units Method Reference Comment
Deltar234.3 ± 6.3kJ/molKinGJackson, 1989 
Deltar243. - 255.kJ/molN/ASmith and Patrick, 1983 
Deltar251. ± 17.kJ/molN/AMcMillen and Golden, 1982 

Gas phase ion energetics 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 as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV) Method Reference Comment
8.56 ± 0.02PIDistefano and Dibeler, 1970RDSH
8.8PECreber and Bancroft, 1980Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CH3Cd+9.69 ± 0.02CH3PIDistefano and Dibeler, 1970RDSH
Cd+12.10 ± 0.022CH3PIDistefano and Dibeler, 1970RDSH

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:   D3h'(G+36)     Symmetry Number sigma = 6


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

a1' 1 CH3 s-str 2903  C  ia 2903 S p liq. Free rotation
a1' 2 CH3 s-deform 1127  C  ia 1127 S p liq. Free rotation
a1' 3 CCd s-str 459  C  ia 459 S p liq. Free rotation
a1 4 Torsion  ia  ia Free rotation
a2 5 CH3 s-str 2923  C 2923 S gas  ia Free rotation
a2 6 CH3 s-deform 1136  C 1136 M gas  ia Free rotation
a2 7 CCd a-str 535  C 535 S gas  ia Free rotation
e' 8 CH3 d-str 2980  C 2980 VS gas Free rotation
e' 9 CH3 d-deform 1315  C 1315 gas 1324 liq. Free rotation
e' 10 CH3 rock 700  C 700 S gas Free rotation
e' 11 CCdC deform 124  C 124 W gas 120 W b liq. Free rotation
e 12 CH3 d-str 2859  C 2859 gas 2834 M liq. Free rotation
e 13 CH3 d-deform 1427  C 1427 W liq. Free rotation
e 14 CH3 rock 634  C 634 M dp liq. Free rotation

Source: Shimanouchi, 1972

Notes

VSVery strong
SStrong
MMedium
WWeak
iaInactive
bBroad
pPolarized
dpDepolarized
C3~6 cm-1 uncertainty

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, NIST Free Links, Notes

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

Martinho Simões
Martinho Simões, J.A., Private communication (see http://webbook.nist.gov/chemistry/om/). [all data]

Long and Norrish, 1949
Long, L.H.; Norrish, R.G.W., Phil. Trans. Roy. Soc. (London), 1949, A241, 587. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds in Academic Press, New York, 1970. [all data]

Sokolovskii and Baev, 1985
Sokolovskii, A.E.; Baev, A.K., Vestsi Akad. Navuk BSSR, Ser. Khim. Navuk, 1985, 112.. [all data]

Sokolovski and Baev, 1985
Sokolovski, A.E.; Baev, A.K., Vestsi Akad. G. Emii Navuk BSSR Ser. Khim. Navuk, 1985, 1112. [all data]

Baev, 2001
Baev, A.K., Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol., 2001, 44, 1, 3. [all data]

Jackson, 1989
Jackson, R.L., Chem. Phys. Lett., 1989, 163, 315. [all data]

Smith and Patrick, 1983
Smith, G.P.; Patrick, R., Int. J. Chem. Kinet., 1983, 15, 167. [all data]

McMillen and Golden, 1982
McMillen, D.F.; Golden, D.M., Hydrocarbon bond dissociation energies, Ann. Rev. Phys. Chem., 1982, 33, 493. [all data]

Distefano and Dibeler, 1970
Distefano, G.; Dibeler, V.H., Photoionization study of the dimethyl compounds of zinc, cadmium, and mercury, Intern. J. Mass Spectrom. Ion Phys., 1970, 4, 59. [all data]

Creber and Bancroft, 1980
Creber, D.K.; Bancroft, G.M., Photoelectron studies of dialkyl group 2B compounds: Ligand field splittings intensity variations with photon energy, Inorg. Chem., 1980, 19, 643. [all data]

Shimanouchi, 1972
Shimanouchi, T., Tables of Molecular Vibrational Frequencies Consolidated Volume II, J. Phys. Chem. Ref. Data, 1972, 6, 3, 993-1102. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, NIST Free Links, References